Improviag transportation system is essential for all people in each city since transport plays a very important role. Using mathematical programming approach transport problem is an effective way to improve transporta...Improviag transportation system is essential for all people in each city since transport plays a very important role. Using mathematical programming approach transport problem is an effective way to improve transportation system. In this paper, the traffic equilibrium problem （TEP） with a general nonadditive route cost function is studied. We formulate the route cost function for each route as a disutility function, which can evaluate route cost function flexibly and analyze the route toll conveniently. Furthermore, we present the TEP with a nonlinear complementary problem （NCP） formulation. The monotonicity and the existence with the NCP formulation are also given under relative assumptions.展开更多
A novel concept, called nonadditive set-valued measure, is first defined as a monotone and continuous set function. Then the interconnections between nonadditive set-valued measure and the additive set-valued measur...A novel concept, called nonadditive set-valued measure, is first defined as a monotone and continuous set function. Then the interconnections between nonadditive set-valued measure and the additive set-valued measure as well as the fuzzy measure are discussed. Finally, an approach to construct a nonadditive compact set-valued measure is presented via Aumann fuzzy integral.展开更多
Heterosis has been widely utilized in agricultural production.Despite over a century of extensive research,the underlying mechanisms of heterosis remain elusive.Most hypotheses and research have focused on the genetic...Heterosis has been widely utilized in agricultural production.Despite over a century of extensive research,the underlying mechanisms of heterosis remain elusive.Most hypotheses and research have focused on the genetic basis of heterosis.However,the potential role of gut microbiota in heterosis has been largely ignored.Here,we carefully design a crossbreeding experiment with two distinct broiler breeds and conduct 16S rRNA amplicon and transcriptome sequencing to investigate the synergistic role of gut microbiota and host genes in driving heterosis.We find that the breast muscle weight of hybrids exhibits a high heterosis,6.28%higher than the mid-parent value.A notable difference is observed in the composition and potential function of cecal microbiota between hybrids and their parents.Over 90%of differentially colonized microbiota and differentially expressed genes exhibit nonadditive patterns.Integrative analyses uncover associations between nonadditive genes and nonadditive microbiota,including a connection between the expression of cellular signaling pathways and metabolism-related genes and the abundance of Odor-ibacter,Oscillibacter,and Alistipes in hybrids.Moreover,higher abundances of these microbiota are related to better meat yield.In summary,these findings highlight the importance of gut microbiota in heterosis,serving as crucial factors that modulateheterosis expression in chickens.展开更多
Hybrid rice(Oryza sativa)generally outperforms its inbred parents in yield and stress tolerance,a phenomenon termed heterosis,but the underlying mechanism is not completely understood.Here,we combined transcriptome,pr...Hybrid rice(Oryza sativa)generally outperforms its inbred parents in yield and stress tolerance,a phenomenon termed heterosis,but the underlying mechanism is not completely understood.Here,we combined transcriptome,proteome,physiological,and heterosis analyses to examine the salt response of super hybrid rice Chaoyou1000(CY1000).In addition to surpassing the mean values for its two parents(mid-parent heterosis),CY1000 exhibited a higher reactive oxygen species scavenging ability than both its parents(over-parent heterosis or heterobeltiosis).Nonadditive expression and allele-specific gene expression assays showed that the glutathione S-transferase gene OsGSTU26 and the amino acid transporter gene OsAAT30 may have major roles in heterosis for salt tolerance,acting in an overdominant fashion in CY1000.Furthermore,we identified OsWRKY72 as a common transcription factor that binds and regulates OsGSTU26 and OsAAT30.The salt-sensitive phenotypes were associated with the OsWRKY72^(paternal)genotype or the OsAAT30^(maternal)genotype in core rice germplasm varieties.OsWRKY72^(paternal)specifically repressed the expression of OsGSTU26 under salt stress,leading to salinity sensitivity,while OsWRKY72^(maternal)specifically repressed OsAAT30,resulting in salinity tolerance.These results suggest that the OsWRKY72-OsAAT30/OsGSTU26 module may play an important role in heterosis for salt tolerance in an overdominant fashion in CY1000 hybrid rice,providing valuable clues to elucidate the mechanism of heterosis for salinity tolerance in hybrid rice.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.71071014,70771005,70631001)the Fundamental Research Funds for Central Universities of China(Grant No. 2009JBM044)
文摘Improviag transportation system is essential for all people in each city since transport plays a very important role. Using mathematical programming approach transport problem is an effective way to improve transportation system. In this paper, the traffic equilibrium problem （TEP） with a general nonadditive route cost function is studied. We formulate the route cost function for each route as a disutility function, which can evaluate route cost function flexibly and analyze the route toll conveniently. Furthermore, we present the TEP with a nonlinear complementary problem （NCP） formulation. The monotonicity and the existence with the NCP formulation are also given under relative assumptions.
基金Supported by the National Natural Science Foundationof China ( No. 6 0 1740 49) and Sino- French JointL aboratory for Research in Com puter Science,Controland Applied Mathem atics ( L IAMA)
文摘A novel concept, called nonadditive set-valued measure, is first defined as a monotone and continuous set function. Then the interconnections between nonadditive set-valued measure and the additive set-valued measure as well as the fuzzy measure are discussed. Finally, an approach to construct a nonadditive compact set-valued measure is presented via Aumann fuzzy integral.
基金This work was supported by the National Key Research and Development Program of China(2022YFF1000204)the National Natural Science Foundation of China(32102535)+1 种基金the Key Research and Development Program of Hainan province(ZDYF2023XDNY036)the Guangxi Science and Technology Major Program(GK AA23062049).
文摘Heterosis has been widely utilized in agricultural production.Despite over a century of extensive research,the underlying mechanisms of heterosis remain elusive.Most hypotheses and research have focused on the genetic basis of heterosis.However,the potential role of gut microbiota in heterosis has been largely ignored.Here,we carefully design a crossbreeding experiment with two distinct broiler breeds and conduct 16S rRNA amplicon and transcriptome sequencing to investigate the synergistic role of gut microbiota and host genes in driving heterosis.We find that the breast muscle weight of hybrids exhibits a high heterosis,6.28%higher than the mid-parent value.A notable difference is observed in the composition and potential function of cecal microbiota between hybrids and their parents.Over 90%of differentially colonized microbiota and differentially expressed genes exhibit nonadditive patterns.Integrative analyses uncover associations between nonadditive genes and nonadditive microbiota,including a connection between the expression of cellular signaling pathways and metabolism-related genes and the abundance of Odor-ibacter,Oscillibacter,and Alistipes in hybrids.Moreover,higher abundances of these microbiota are related to better meat yield.In summary,these findings highlight the importance of gut microbiota in heterosis,serving as crucial factors that modulateheterosis expression in chickens.
基金supported by grants from the National Natural Science Foundation of China(Grant No.32272050 and U21A20208)the National Center of Technology Innovation for Saline-Alkali Tolerant Rice(2022PT1005)+2 种基金the Hunan Natural Science Foundation(Grant No.2022JJ30021)the Science and Technology Innovation Program of Hunan Province(2023NK1010)the Changsha Science and Technology Project(Grant No.kq2202221)。
文摘Hybrid rice(Oryza sativa)generally outperforms its inbred parents in yield and stress tolerance,a phenomenon termed heterosis,but the underlying mechanism is not completely understood.Here,we combined transcriptome,proteome,physiological,and heterosis analyses to examine the salt response of super hybrid rice Chaoyou1000(CY1000).In addition to surpassing the mean values for its two parents(mid-parent heterosis),CY1000 exhibited a higher reactive oxygen species scavenging ability than both its parents(over-parent heterosis or heterobeltiosis).Nonadditive expression and allele-specific gene expression assays showed that the glutathione S-transferase gene OsGSTU26 and the amino acid transporter gene OsAAT30 may have major roles in heterosis for salt tolerance,acting in an overdominant fashion in CY1000.Furthermore,we identified OsWRKY72 as a common transcription factor that binds and regulates OsGSTU26 and OsAAT30.The salt-sensitive phenotypes were associated with the OsWRKY72^(paternal)genotype or the OsAAT30^(maternal)genotype in core rice germplasm varieties.OsWRKY72^(paternal)specifically repressed the expression of OsGSTU26 under salt stress,leading to salinity sensitivity,while OsWRKY72^(maternal)specifically repressed OsAAT30,resulting in salinity tolerance.These results suggest that the OsWRKY72-OsAAT30/OsGSTU26 module may play an important role in heterosis for salt tolerance in an overdominant fashion in CY1000 hybrid rice,providing valuable clues to elucidate the mechanism of heterosis for salinity tolerance in hybrid rice.
