期刊文献+
共找到3,638篇文章
< 1 2 182 >
每页显示 20 50 100
Complete genome assembly of the Xian rice variety IR64 as a valuable source in genomics and breeding research
1
作者 Min Li Tingting Sheng +13 位作者 Linjun Yu Shuyue Zheng Shijiao Li Shuran Zhou Fengcai Wu Fan Zhang Chaopu Zhang Erbao Liu Yingyao Shi Xue Mi Xueru Zhang Zhikang Li Yanru Cui Wensheng Wang 《Journal of Genetics and Genomics》 2026年第3期551-554,共4页
IR64 is an elite Xian/indica variety developed by International Rice Research Institute(IRRl)in 1985,which has been the most widely grown variety and core breeding parent in South/Southeast Asia(Mackill and Khush,2018... IR64 is an elite Xian/indica variety developed by International Rice Research Institute(IRRl)in 1985,which has been the most widely grown variety and core breeding parent in South/Southeast Asia(Mackill and Khush,2018).IR64 has been utilized to develop stress-tolerant(such as drought-adapted and submergenceresistant)near-isogenic lines,underscoring its great potential in agricultural genomics(Tanaka et al.,2020). 展开更多
关键词 Xian rice IR core breeding parent breeding research agricultural genomics tanaka genomicS genome assembly stress tolerance
原文传递
Integrative multi-omics and genomic prediction reveal genetic basis of salt tolerance in alfalfa
2
作者 Fei He Ming Xu +10 位作者 Ruicai Long Kai Zhu Mengrui Du Wenqi Ma Hui Xue Yanling Peng Lin Chen Junmei Kang Yongfeng Zhou Qingchuan Yang Fan Zhang 《Journal of Genetics and Genomics》 2026年第3期447-457,共11页
The genetic basis of early-stage salt tolerance in alfalfa(Medicago sativa L.),a key factor limiting its productivity,remains poorly understood.To dissect this complex trait,we integrate genome-wide association studie... The genetic basis of early-stage salt tolerance in alfalfa(Medicago sativa L.),a key factor limiting its productivity,remains poorly understood.To dissect this complex trait,we integrate genome-wide association studies(GWAS)and transcriptomics from 176 accessions within a machine learning based genomic prediction framework.Analysis reveals weak genetic correlations among four salt-tolerance traits and a gradual decline in performance under increasing salt stress.GWAS identify 60 significant associated SNPs,with the highest number detected under 100 mM salt stress.Salt tolerance exhibits an additive effect from favorable haplotypes,which are most abundant in Chinese accessions.GWAS-associated genes are related to key regulators of hormone signaling and osmotic adjustment,while transcriptome analysis indicates a global repression of stress-responsive transcription factors.Integrating these multi-omics datasets allows us to identify 14 candidate genes,including MsHSD1(seed dormancy)and MsMTATP6(energy metabolism).Crucially,incorporating these markers into genomic prediction models improve cross-population predictive accuracy to an average of 54.4%.This study provides insights into the genetic architecture of salt tolerance in alfalfa and offers valuable markers to facilitate molecular breeding. 展开更多
关键词 ALFALFA GWAS RNA-seq Salt genomic prediction
原文传递
Characteristics and genomic mechanism of Absidia spinosa in inhibiting coal spontaneous combustion
3
作者 Xuanmeng Dong Botao Qin +3 位作者 Fusheng Wang Xiangming Hu Liwen Guo Tiesheng Han 《International Journal of Mining Science and Technology》 2026年第1期57-78,共22页
Early prevention and control of coal spontaneous combustion have emerged as a critical research area in coal mine safety.Due to their sustainability and environmental friendliness,microorganisms have gained attention.... Early prevention and control of coal spontaneous combustion have emerged as a critical research area in coal mine safety.Due to their sustainability and environmental friendliness,microorganisms have gained attention.A filamentous fungus was collected in the coal mine and identified as Absidia spinosa.Results indicated that the mycelium effectively covered and repaired many coal pores.The oxygen consumption ratio of A.spinosa was higher in coal-containing environments than in coal-free conditions.The fungus significantly impacted aliphatic functional groups,disrupting bridging bonds and side chains connected to aromatic structures and reducing the relative content of C—O bonds.Additionally,A.spinosa increases the ignition temperature by 25.34℃.The total heat release was decreased by approximately 32.58%,and the activation energies were increased.The genome of Absidia spinosa revealed genes related to oxygen consumption,small molecule degradation,and secretion of metabolic products,such as those annotated under GO ID:0140657,etc.The pathways involved in the degradation of small organic molecules(e.g.,ko00626,etc.),carbon fixation,and nitrogen cycling,all linked to coal decomposition.Through oxygen consumption and the alteration of coal-active structures,A.spinosa effectively inhibits CSC,providing an experimental basis for exploring eco-friendly biological control methods in the goaf. 展开更多
关键词 Coal spontaneous combustion MICROORGANISMS Low-temperature oxidation Aerobic respiration genomic mechanism
在线阅读 下载PDF
High‑density genetic mapping enhances genomic selection accuracy for complex traits in Populus
4
作者 Chenchen Guo Tongming Yin Suyun Wei 《Journal of Forestry Research》 2026年第2期290-304,共15页
Populus species,important economic species combining rapid growth with broad ecological adaptability,play a critical role in sustainable forestry and bioenergy production.In this study,we performed whole-genome resequ... Populus species,important economic species combining rapid growth with broad ecological adaptability,play a critical role in sustainable forestry and bioenergy production.In this study,we performed whole-genome resequencing of 707 individuals from a full-sib family to develop comprehensive single nucleotide polymorphism(SNP)markers and constructed a high-density genetic linkage map of 19 linkage groups.The total genetic length of the map reached 3623.65 cM with an average marker interval of 0.34 cM.By integrating multidimensional phenotypic data,89 quantitative trait loci(QTL)associated with growth,wood physical and chemical properties,disease resistance,and leaf morphology traits were identified,with logarithm of odds(LOD)scores ranging from 3.13 to 21.72 Notably,pleiotropic analysis revealed significant colocaliza and phenotypic variance explained between 1.7% and 11.6%.-tion hotspots on chromosomes LG1,LG5,LG6,LG8,and LG14,with epistatic interaction network analysis confirming genetic basis of coordinated regulation across multiple traits.Functional annotation of 207 candidate genes showed that R2R3-MYB and bHLH transcription factors and pyruvate kinase-encoding genes were significantly enriched,suggesting crucial roles in lignin biosynthesis and carbon metabolic pathways.Allelic effect analysis indicated that the frequency of favorable alleles associated with target traits ranged from 0.20 to 0.55.Incorporation of QTL-derived favorable alleles as random effects into Bayesian-based genomic selection models led to an increase in prediction accuracy ranging from 1% to 21%,with Bayesian ridge regression as the best predictive model.This study provides valuable genomic resources and genetic insights for deciphering complex trait architecture and advancing molecular breeding in poplar. 展开更多
关键词 genomic selection Genetic map Quantitative trait loci GROWTH Disease resistance
在线阅读 下载PDF
Engineering climate-resilient and high-quality oilseed crops:The role of genomics,gene editing,and epigenetics
5
作者 Hongju Sun Mingchao Xu +7 位作者 Hui Liu Guijun Yan Weijun Zhou Sheng Chen Ling Xu Ahsan Ayyaz Yanhui Wang Zhanyuan Lu 《Oil Crop Science》 2026年第1期28-37,共10页
Modern oilseed breeding faces the complex challenge of simultaneously improving yield,nutritional quality,and stress resilience within a sustainable agricultural framework.A predictive,systems-oriented strategy offers... Modern oilseed breeding faces the complex challenge of simultaneously improving yield,nutritional quality,and stress resilience within a sustainable agricultural framework.A predictive,systems-oriented strategy offers a solution by using predictive modeling and precise genetic intervention to engineer target ideotypes.This review synthesizes the integration of genomic selection(GS),genome editing,and epigenetic regulation to operationalize a precision breeding strategy in major oilseed crops.We document how GS,utilizing high-density SNP arrays and sequencing data,has reduced breeding cycles by up to 50%in soybean,enabling rapid selection for complex traits like seed protein content.We highlight the precision of CRISPR-Cas systems in executing design goals,such as creating commercial-grade high-oleic soybeans(>80%oleic acid)by knocking out FAD2 genes.Similarly,editing glucosinolate biosynthesis genes in rapeseed has directly improved meal quality.Furthermore,we explore the emerging role of epigenetic regulation as a tunable layer in trait optimization,where DNA methylation patterns in sunflower are linked to drought stress memory and flowering time.Finally,we present an integrated molecular framework,which synergizes these technologies to develop ideotypes with optimized architectures and composition.Despite challenges in phenotyping and global regulation,the strategic implementation of this molecular toolkit is pioneering a new era of precision breeding for the sustainable intensification of oilseed production. 展开更多
关键词 Oilseed crops Molecular tools Technological innovations genomic selection Challenges and perspectives
在线阅读 下载PDF
Genomic insights of leafminer resistance in spinach through GWAS approach and genomic prediction
6
作者 Ibtisam Alatawi Haizheng Xiong +6 位作者 Beiquan Mou Kenani Chiwina Waltram Ravelombola Qun Luo Yiting Xiao Yang Tian Ainong Shi 《Horticultural Plant Journal》 2026年第2期356-368,共13页
The Leafminers,representing a diverse group of insects from various genera within the Agromyzidae family,pose a significant threat to spinach(Spinacia oleracea L.)production.This study aimed to identify single nucleot... The Leafminers,representing a diverse group of insects from various genera within the Agromyzidae family,pose a significant threat to spinach(Spinacia oleracea L.)production.This study aimed to identify single nucleotide polymorphism(SNP)markers associated with leafminer resistance through a genome-wide association study(GWAS)and to evaluate the prediction accuracy(PA)for selecting resistant spinach using genomic prediction(GP).Using a dataset of 84301 SNPs obtained from whole-genome resequencing,seven GWAS models,including BLINK,FarmCPU,MLM,and MLMM in GAPIT 3,as well as MLM,GLM,and SMR in TASSEL 5,were employed to perform GWAS on a panel of 286 USDA spinach germplasm accessions.Three SNP markers,namely 1_115279256_C_T,3_157082529_C_T,and 4_168510908_T_G on chromosomes 1,3,and 4,respectively,were identified as associated with leafminer resistance.In the 30 kb flanking regions of these markers,four candidate genes(SOV1g031330,SOV1g031340,SOV4g047270,and SOV4g047280),encoding LOB domain-containing protein,KH domain-containing protein,were discovered.Nodulin-like domain-containing protein,and SAM domain-containing protein,were discovered.The PA for leafminer resistance selection was estimated using ten different SNP sets,including two GWAS-derived marker sets(three and 51 SNPs)and eight random marker sets(ranging from 51 to 10 K SNPs)analyzed by seven GP models.The findings emphasized the superior performance of GWAS-derived SNP sets,reaching a PA of up to 0.79 using the cBLUP model.Notably,this research marks the pioneering application of GP in the context of insect resistance,providing a significant advancement in the understanding and management of leafminer resistance in spinach cultivation. 展开更多
关键词 Spinach germplasm Genome-wide association study Pest resistance genomic prediction
在线阅读 下载PDF
Improving multibreed genomic prediction for breeds with small populations by modeling heterogeneous genetic(co)variance blockwise accounting for linkage disequilibrium
7
作者 Weining Li Siyu Li +7 位作者 Heng Du Qianqian Huang Yue Zhuo Lei Zhou Jinhua Cheng Wanying Li Jicai Jiang Jianfeng Liu 《Journal of Animal Science and Biotechnology》 2026年第1期147-158,共12页
Background Multibreed genomic prediction(MBGP)is crucial for improving prediction accuracy for breeds with small populations,for which limited data are often available.Recent studies have demonstrated that partitionin... Background Multibreed genomic prediction(MBGP)is crucial for improving prediction accuracy for breeds with small populations,for which limited data are often available.Recent studies have demonstrated that partitioning the genome into nonoverlapping blocks to model heterogeneous genetic(co)variance in multitrait models can achieve higher joint prediction accuracy.However,the block partitioning method,a key factor influencing model performance,has not been extensively explored.Results We introduce mbBayesABLD,a novel Bayesian MBGP model that partitions each chromosome into nonoverlapping blocks on the basis of linkage disequilibrium(LD)patterns.In this model,marker effects within each block are assumed to follow normal distributions with block-specific parameters.We employ simulated data as well as empirical datasets from pigs and beans to assess genomic prediction accuracy across different models using cross-validation.The results demonstrate that mbBayesABLD significantly outperforms conventional MBGP models,such as GBLUP and BayesR.For the meat marbling score trait in pigs,compared with GBLUP,which does not account for heterogeneous genetic(co)variance,mbBayesABLD improves the prediction accuracy for the small-population breed Landrace by 15.6%.Furthermore,our findings indicate that a moderate level of similarity in LD patterns between breeds(with an average correlation of 0.6)is sufficient to improve the prediction accuracy of the target breed.Conclusions This study presents a novel LD block-based approach for multibreed genomic prediction.Our work provides a practical tool for livestock breeding programs and offers new insights into leveraging genetic diversity across breeds for improved genomic prediction. 展开更多
关键词 Heterogeneous genetic(co)variance Linkage disequilibrium Multibreed genomic prediction Multitrait Bayesian model Small-population breed
在线阅读 下载PDF
Nanoparticle-assisted gene editing for genomic disorders in the central nervous system
8
作者 Hyeon-Yeol Cho Jeong-Woo Choi 《Neural Regeneration Research》 2026年第8期3547-3548,共2页
Genomic disorders affecting the central nervous system(CNS)are among the most complex and devastating conditions in human health.Moreover,these disorders,such as Rett syndrome,spinal muscular atrophy,and Fragile X syn... Genomic disorders affecting the central nervous system(CNS)are among the most complex and devastating conditions in human health.Moreover,these disorders,such as Rett syndrome,spinal muscular atrophy,and Fragile X syndrome,are typically caused by mutations in genes essential for neural development,synaptic function,or cellular homeostasis.Despite the genetic diversity involved,these diseases share key pathological features,including progressive neurodegeneration,disruption of neural circuits,and loss of cognitive or motor function.Meanwhile,one of the significant clinical challenges in treating CNS disorders is the limited regenerative capacity of the adult nervous system,which makes reversing disease progression extremely difficult once symptoms appear.In addition,the blood-brain barrier(BBB)restricts the passage of most systemically administered therapeutics,further complicating effective intervention.Consequently,current treatment options remain largely palliative,and effective cures remain elusive. 展开更多
关键词 nanoparticle assisted gene editing central nervous system genomic disorders fragile x syndromeare central nervous system cns rett syndromespinal muscular atrophyand progressive neurodegenerationdisruption neural circuitsand loss cogni
暂未订购
A comprehensive study on the effects of Lactiplantibacillus plantarum and Staphylococcus simulans on the flavor metabolite profiles in fermented sausages via metabolomics and genomics
9
作者 Xuefei Shao Huhu Wang +3 位作者 Xiangyu Song Na Xu Jian Sun Xinglian Xu 《Food Science and Human Wellness》 2026年第1期351-365,共15页
Inoculation of starter culture is a viable method to improve the quality of fermented foods,but its effect on the flavor metabolite profiles and the underlying mechanisms are still unclear.This study aimed to elucidat... Inoculation of starter culture is a viable method to improve the quality of fermented foods,but its effect on the flavor metabolite profiles and the underlying mechanisms are still unclear.This study aimed to elucidate the effects of starters(Lactiplantibacillus plantarum(LP)and Staphylococcus simulans(SS)individually or in combination(LS))on the flavor metabolite profiles of fermented sausages via metabolomics and genomics.L.plantarum markedly modified the composition of bacterial communities and made Lactobacillus spp.dominant in sausages(98.29%and 85.03%in LP and LS groups,respectively).Additionally,inoculation with a single starter,L.plantarum,and a mixed starter yielded similar non-volatile flavor metabolites,which were mainly characterized at the amino acid and peptide levels(relative intensities of 349.65 and 348.62 for the LP and LS groups,respectively).Meanwhile,the mixed starter group had the most volatile flavor metabolites(relative intensity of 34728.67),some of which were contributed by L.plantarum,such as ethyl acetate(relative intensities of 583.33 and 588.33 for the LP and LS groups,respectively)and benzaldehyde(relative intensities of 786.67 and 909.00 for the LP and LS groups,respectively),and several of which were generated by S.simulans,such as ethyl propionate(relative intensities of 214.67 and 136.67 for the SS and LS groups,respectively)and benzyl alcohol(relative intensities of 720.00 and 656.00 for the SS and LS groups,respectively).Furthermore,L.plantarum was found to possess more genes encoding peptidases(48)and carbohydrate-active enzymes(124),while S.simulans had more genes related to lipid hydrolysis(12).In conclusion,differences in the properties and combinations of indigenous strains play a crucial role in the generation of flavor metabolites in sausages. 展开更多
关键词 Starter culture Fermented sausage FLAVOR genomicS Metabolomics
在线阅读 下载PDF
Worldwide phylogeny and integrative taxonomy of Clematis:Insights from phylogenomics
10
作者 Jia-Min Xiao Ming-Yang Li +12 位作者 Jun Wen Radosław Puchałka Huan-Yu Wu Wen-He Li Zi-Yi Li Bo-Wen Liu Yue-Xin Luo Ru-Dan Lyu Le-Le Lin Jian He Jin Cheng Lei Xie Liang-Qian Li 《Plant Diversity》 2026年第1期16-40,共25页
The genus Clematis(Ranunculaceae)comprises over 300 species with remarkable morphological and ecological diversity worldwide.Despite its horticultural,medicinal,and ecological importance,a well-resolved phylogeny and ... The genus Clematis(Ranunculaceae)comprises over 300 species with remarkable morphological and ecological diversity worldwide.Despite its horticultural,medicinal,and ecological importance,a well-resolved phylogeny and coherent infrageneric classification are still lacking.Here,we reconstruct a robust phylogeny for Clematis using a phylogenomic approach and revise its infrageneric taxonomy.We incorporated 198 samples representing 151 species,two subspecies,and 12 varieties,covering all subgenera and most sections worldwide,obtained from both fresh and herbarium material.Nuclear single nucleotide polymorphisms(SNPs)and complete plastid genomes were assembled for phylogenetic analyses.We also prepared a nuclear ribosomal ITS(nrITS)dataset comprising 171 species,two subspecies,and 12 varieties(217 samples)to include as many species as possible for phylogenetic inference.Phylogenies based on plastid genomes and nrITS exhibited limited resolution and modest support,highlighting challenges in resolving certain relationships.Nuclear SNP analyses yielded a robust phylogenetic tree with 22 well-supported clades corresponding to 22 sections,with most previously recognized subgenera and sections not recovered as monophyletic.Ancestral state reconstruction of 12 key morphological characters revealed multiple independent origins of character states.This study presents the first comprehensive sectional classification for Clematis based on robust phylogenomic evidence,redefines morphological characteristics for each section,and resolves long-standing taxonomic ambiguities.Our results establish a framework for future studies on the evolution,ecology,and horticultural potential of this globally significant genus. 展开更多
关键词 CLEMATIS Genome skimming Morphological evolution Nuclear SNPs PHYLOgenomicS Classification
在线阅读 下载PDF
Comparative Analysis Provides Insights into the Phylogeny of Chamidae(Bivalvia:Veneroida)Through a Mitogenomic Approach
11
作者 LI Jing WANG Yu +2 位作者 XU Tao KONG Lingfeng LI Qi 《Journal of Ocean University of China》 2026年第1期333-342,共10页
The Chamidae are widely distributed in the tropical to temperate seas,with>70 known species.Currently,their classification relies mainly on traditional morphological methods and identification primarily on small fr... The Chamidae are widely distributed in the tropical to temperate seas,with>70 known species.Currently,their classification relies mainly on traditional morphological methods and identification primarily on small fragment genes,such as COI.The intrafamily phylogenetic relationships are ambiguous,lacking support from reliable molecular data.In this study,the mitochondrial genomes of eight species of Chamidae were sequenced for the first time and then annotated.Their structures and compositional characteristics were analyzed.The mitochondrial gene order in this family differed significantly.Concurrently,the evolutionary position and phylogenetic relationship among Chamidae species were explored,and the Veneroida phylogenetic tree was recreated.Maximum Likelihood and Bayesian Inference analyses supported the monophyly of Chamidae.Additionally,the divergence time within Chamidae was estimated based on mitochondrial DNA sequences,with the most ancient divergence estimated to occur during the early Cretaceous period,128 MYA.This phylogeny is significant for understanding the diversity and taxonomic status of Chamidae. 展开更多
关键词 mitochondrial genome PHYLOGENY CLASSIFICATION Chamidae
在线阅读 下载PDF
Dissecting mitogenomic conflictto illuminate angiosperm deep phylogeny:Sequence and architectural evidence
12
作者 Liyun Nie Jie Wang +9 位作者 Lei Huang Jiali Kong Bao Nie Luke R.Tembrock Shanshan Dong Ravi Tiwari Hui Wang Shenglong Kan Xinhui Zou Zhiqiang Wu 《Plant Diversity》 2026年第1期41-58,共18页
Deep relationships in the angiosperm tree of life remain highly controversial.To address this,we first assembled the complete mitochondrial genomes for Ceratophyllum demersum and Chloranthus sessilifolius,confirming a... Deep relationships in the angiosperm tree of life remain highly controversial.To address this,we first assembled the complete mitochondrial genomes for Ceratophyllum demersum and Chloranthus sessilifolius,confirming a well-supported sister relationship that starkly conflicts with nuclear and plastid data.To dissect this classic cyto-nuclear conflict,we developed the‘PhyloForensics’framework,a novel diagnostic approach to systematically identify sources of phylogenetic instability.This framework revealed that signal heterogeneity(topological entropy variance)and information content(the proportion of informative sites)are the primary drivers of gene-tree conflict.Empirically validating this,we show that removing a small subset of“loudly conflicted”genes resolves deep-level incongruence,yielding a single,highly-supported topology previously obscured by noise.Finally,complementing this sequence-based resolution,we demonstrate that mitogenome architecture provides powerful phylogenetic signals,revealing predictable,mitogenome-wide evolutionary patterns,such as a significant negative correlation between branch length and both GC content and RNA editing sites.By integrating a validated conflict-resolution framework with architectural genomics,our study provides a comprehensive strategy for navigating the complexities of deep evolutionary histories. 展开更多
关键词 Angiosperm phylogeny Ceratophyllales Chloranthales Evolutionary correlation Mitochondrial genomes
在线阅读 下载PDF
Genomic insights into the absence of root nodule formation and nitrogen fixation in Zenia insignis
13
作者 Hang Yu Yongbin Lu +4 位作者 Chao Zhang Wenyuan Yang Hongjiang Xie Huiru Liu Haifeng Wang 《Journal of Genetics and Genomics》 2025年第6期860-863,共4页
Symbiotic nitrogen fixation in members of the Fabaceae family is highly efficient and beneficial for global agriculture,but not all species in this family form root nodules with rhizobial bacteria.Nodulation mainly oc... Symbiotic nitrogen fixation in members of the Fabaceae family is highly efficient and beneficial for global agriculture,but not all species in this family form root nodules with rhizobial bacteria.Nodulation mainly occurs in plants belonging to the Papilionoideae and Caesalpinioideae subfamilies(Tederso0 et al.,2018;van Velzen et al.,2019).Nodulation mechanisms in Fabaceae are well studied(Yang et al.,2022),and genomic comparisons of nodulating and non-nodulating host species can provide valuable insights into the evolutionary and genetic basis of this key process. 展开更多
关键词 nitrogen fixation genomic insights rhizobial bacterianodulation symbiotic nitrogen fixation root nodule formation Zenia insignis genomic comparisons FABACEAE
原文传递
Alpha to JN.1 variants:SARS-CoV-2 genomic analysis unfolding its various lineages/sublineages evolved in Chhattisgarh,India from 2020 to 2024
14
作者 Pushpendra Singh Ruchi Khare +2 位作者 Kuldeep Sharma Anudita Bhargava Sanjay Singh Negi 《World Journal of Virology》 2025年第2期142-151,共10页
BACKGROUND The evolutionary mutational changes of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)since its emergence in Chhattisgarh,India in 2020 have warranted the need for the characterization of every ... BACKGROUND The evolutionary mutational changes of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)since its emergence in Chhattisgarh,India in 2020 have warranted the need for the characterization of every lineage/sublineage that has evolved until February 2024.AIM To unravel the evolutionary pathway of SARS-CoV-2 in Chhattisgarh from 2020 to February 2024.METHODS A total of 635 coronavirus disease 2019 cases obtained between 2020 and February 2024 were investigated by whole genome sequencing.RESULTS Whole genome sequencing analysis identified the evolution of SARS-CoV-2 into seventeen lineages from 2020 to 2024.SARS-CoV-2 initially emerged in Chhattisgarh in its Alpha(B.1.1.7)variant in 2020.Thereafter,it continuously underwent periodical mutational changes in the spike gene to further differentiate into various lineages/sublineages,viz.,Kappa,Delta,BA.1,and BA.2 in 2021;the Omicron lineage(BA.5,BA.2.12.1,BA.2.75,BQ.1,and XBB)in 2022;the new Omicron lineage(XBB.1.5,XBB.1.16,XBB.1.9.1,and XBB.2.3)in 2023;and finally to JN.1 in January and February 2024.The predominant lineages over these 4 years were BA.1.1.7(Alpha)in 2020,B.1.617.2(Delta)in the period between 2021 and mid-2022,B.1.1.529(Omicron)in late 2022 to 2023,and Omicron-JN.1 in early 2024.The presently circulating JN.1 lineage was observed harboring exclusive predominant mutations of E4554K,A570V,P621A,and P1143 L with 99%CONCLUSION SARS-CoV-2 from 2020 to 2024 has evolved into 17 lineages/sublineages in Chhattisgarh.The presently circulating JN.1 harbored 40 mutations,especially E554K,A570V,P621S,and P1143 L,capacitating the virus with features of host cell entry,stability,replication,rapid transmissibility,and crucial immune evasion.Therefore,earlier immunity from either vaccination or prior infection may not protect against the current lineage and increases the possibility of future outbreaks.Thus,the periodical genomic surveillance of SARS-CoV-2 is essential for the genomic blueprint of the circulating virus,which may help in updating the vaccine strain and various basic research for developing appropriate therapeutics and diagnostics. 展开更多
关键词 SARS-CoV-2 genomic surveillance genomic variants JN.1 variant 2020 to 2024
暂未订购
Forensic investigative genetic genealogy:expanding pedigree tracing and genetic inquiry in the genomic era
15
作者 Mengge Wang Hongyu Chen +6 位作者 Lintao Luo Yuguo Huang Shuhan Duan Huijun Yuan Renkuan Tang Chao Liu Guanglin He 《Journal of Genetics and Genomics》 2025年第4期460-472,共13页
Genetic genealogy provides crucial insights into the complex biological relationships within contemporary and ancient human populations by analyzing shared alleles and chromosomal segments that are identical by descen... Genetic genealogy provides crucial insights into the complex biological relationships within contemporary and ancient human populations by analyzing shared alleles and chromosomal segments that are identical by descent to understand kinship,migration patterns,and population dynamics.Within forensic science,forensic investigative genetic genealogy(FIGG)has gained prominence by leveraging next-generation sequencing technologies and population-specific genomic resources,opening useful investigative avenues.In this review,we synthesize current knowledge,underscore recent advancements,and discuss the growing role of FIGG in forensic genomics.FIGG has been pivotal in revitalizing dormant inquiries and offering genetic leads in numerous cold cases.Its effectiveness relies on the extensive single-nucleotide polymorphism profiles contributed by individuals from diverse populations to specialized genomic databases.Advances in computational genomics and the growth of human genomic databases have spurred a profound shift in the application of genetic genealogy across forensics,anthropology,and ancient DNA studies.As the field progresses,FIGG is evolving from a nascent practice into a more sophisticated and specialized discipline,shaping the future of forensic investigations. 展开更多
关键词 Forensic genomics Genetic genealogy genomic databases Long-range familial searches Identity-by-descent
原文传递
Evolutionary balance between genomic conservation and coral reef adaptation in the yellow boxfish(Ostracion cubicus)
16
作者 Shui-Mu Hu Zhi-Xiong Zhou +5 位作者 Jun-Yi Yang Zhou Jiang Fei Pu Qing-Ming Qu Tao Zhou Peng Xu 《Zoological Research》 2025年第3期661-674,共14页
The yellow boxfish(Ostracion cubicus)exhibits a combination of derived morphological traits specialized for coral reef environments and ancestral characteristics,including a fused dermal plate.Contradictory evolutiona... The yellow boxfish(Ostracion cubicus)exhibits a combination of derived morphological traits specialized for coral reef environments and ancestral characteristics,including a fused dermal plate.Contradictory evolutionary evidence hinders true classification of O.cubicus.To clarify its evolutionary position within Tetraodontiformes,a chromosome-level genome assembly was generated,representing the most contiguous and complete genome to date for this lineage.Notably,O.cubicus possessed the largest genome within the order Tetraodontiformes,primarily due to extensive transposable element expansion.Phylogenetic analysis based on 19 whole genomes and 131 mitochondrial genomes resolved Tetraodontiformes into three major sister groups(Ostraciidae-Molidae,Tetraodontidae,and Balistidae-Monacanthidae).Comparative genomic evidence indicated that O.cubicus diverged early from the common ancestor of modern Tetraodontiformes and retained the highest number of HOX genes among surveyed taxa.Although overall genomic architecture was largely conserved,certain genetic and environmental changes may have contributed to its phenotypic adaptations,including climate cooling during the Miocene-Pliocene Transition,recent DNA and long interspersed nuclear element(LINE)transposon bursts,lineage-specific chromosomal rearrangements,and gene family expansion.Many positively selected genes and rapidly evolving genes were associated with skeletal development,including bmp7,egf7,and bmpr2.Transcriptomic comparisons between carapace and tail skin revealed various candidate genes and pathways related to carapace formation,such as postn,scpp1,and components of the TGF-βsignaling pathway.A derived amino acid substitution in eda,coupled with protein structural modeling,suggested potential molecular convergence in dermal plate formation among teleosts.These findings provide novel insights into the genomic and developmental basis of carapace evolution and coral reef-adaptation in O.cubicus,offering a strong case for evolutionary balance between genomic conservation with regulatory innovation to achieve coral reef specialization. 展开更多
关键词 Ostracion cubicus Comparative genomics Evolutionary genomics Dermal carapace Convergent evolution
在线阅读 下载PDF
PlastidHub:An integrated analysis platform for plastid phylogenomics and comparative genomics
17
作者 Na-Na Zhang Gregory W.Stull +3 位作者 Xue-Jie Zhang Shou-Jin Fan Ting-Shuang Yi Xiao-Jian Qu 《Plant Diversity》 2025年第4期544-560,共17页
The plastid genome(plastome)represents an indispensable molecular resource for studying plant phylogeny and evolution.Although plastome size is much smaller than that of nuclear genomes,accurately and efficientlyannot... The plastid genome(plastome)represents an indispensable molecular resource for studying plant phylogeny and evolution.Although plastome size is much smaller than that of nuclear genomes,accurately and efficientlyannotating and utilizing plastome sequences remain challenging.Therefore,a streamlined phylogenomic pipeline spanning plastome annotation,phylogenetic reconstruction and comparative genomics would greatly facilitate research utilizing this important organellar genome.Here,we develop PlastidHub,a novel web application employing innovative tools to analyze plastome sequences.In comparison with existing tools,key novel functionalities in PlastidHub include:(1)standardization of quadripartite structure;(2)improvement of annotation flexibility and consistency;(3)quantitative assessment of annotation completeness;(4)diverse extraction modes for canonical and specialized sequences;(5)intelligent screening of molecular markers for biodiversity studies;(6)genelevel visual comparison of structural variations and annotation completeness.PlastidHub features cloud-based web applications that do not require users to install,update,or maintain tools;detailed help documents including user guides,test examples,a static pop-up prompt box,and dynamic pop-up warning prompts when entering unreasonable parameter values;batch processing capabilities for all tools;intermediate results for secondary use;and easy-to-operate task flows between fileupload and download.A key feature of PlastidHub is its interrelated task-based user interface design.Give that PlastidHub is easy to use without specialized computational skills or resources,this new platform should be widely used among botanists and evolutionary biologists,improving and expediting research employing the plastome.PlastidHub is available at https://www.plastidhub.cn. 展开更多
关键词 ANNOTATION Comparative genomics Plastid phylogenomics Sequence processing VISUALIZATION
在线阅读 下载PDF
Advancing precision medicine:the transformative role of artificial intelligence in immunogenomics,radiomics,and pathomics for biomarker discovery and immunotherapy optimization 被引量:3
18
作者 Luchen Chang Jiamei Liu +4 位作者 Jialin Zhu Shuyue Guo Yao Wang Zhiwei Zhou Xi Wei 《Cancer Biology & Medicine》 2025年第1期33-47,共15页
Artificial intelligence(AI)is significantly advancing precision medicine,particularly in the fields of immunogenomics,radiomics,and pathomics.In immunogenomics,AI can process vast amounts of genomic and multi-omic dat... Artificial intelligence(AI)is significantly advancing precision medicine,particularly in the fields of immunogenomics,radiomics,and pathomics.In immunogenomics,AI can process vast amounts of genomic and multi-omic data to identify biomarkers associated with immunotherapy responses and disease prognosis,thus providing strong support for personalized treatments.In radiomics,AI can analyze high-dimensional features from computed tomography(CT),magnetic resonance imaging(MRI),and positron emission tomography/computed tomography(PET/CT)images to discover imaging biomarkers associated with tumor heterogeneity,treatment response,and disease progression,thereby enabling non-invasive,real-time assessments for personalized therapy.Pathomics leverages AI for deep analysis of digital pathology images,and can uncover subtle changes in tissue microenvironments,cellular characteristics,and morphological features,and offer unique insights into immunotherapy response prediction and biomarker discovery.These AI-driven technologies not only enhance the speed,accuracy,and robustness of biomarker discovery but also significantly improve the precision,personalization,and effectiveness of clinical treatments,and are driving a shift from empirical to precision medicine.Despite challenges such as data quality,model interpretability,integration of multi-modal data,and privacy protection,the ongoing advancements in AI,coupled with interdisciplinary collaboration,are poised to further enhance AI’s roles in biomarker discovery and immunotherapy response prediction.These improvements are expected to lead to more accurate,personalized treatment strategies and ultimately better patient outcomes,marking a significant step forward in the evolution of precision medicine. 展开更多
关键词 Artificial intelligence tumor immune microenvironment genomicS TRANSCRIPTOMICS radiomics pathomics
在线阅读 下载PDF
上一页 1 2 182 下一页 到第
使用帮助 返回顶部