摘要
为探索翠胸黄蟌(Ceriagrion auranticum)的分类地位和进化关系,该文对翠胸黄蟌的线粒体全基因组进行了测序、组装和注释,制作线粒体基因组图谱,构建了最大似然进化树.研究结果表明:翠胸黄蟌的线粒体基因组全长16277 bp,全序列都具有AT偏向性,其中A+T含量为72.94%.该线粒体基因组包括13个蛋白编码基因、22个tRNA基因、2个rRNA,A+T富含区1533 bp.编码蛋白的基因在密码子使用上有使用NNT和NNA同义密码子的偏好性.分子系统发育结果表明:翠胸黄蟌和长尾黄蟌(Ceriagrion fallax)的亲缘关系最近,其次是与绿蟌属(Enallagma)等蟌总科的蜻蜓物种亲缘关系较近.研究结果补充了蜻蜓目的基因序列信息,完善了蜻蜓目的系统分类进化树.
To explore the taxonomic status and evolutionary relationship of Ceriagrion auranticum,the mitochondrial whole genome of Ceriagrion auranticum are sequenced,assembled and annotated.The mitochondrial genome map is created and a maximum likelihood evolutionary tree is constructed.The results show that the complete mitochondrial genome sequence of Ceriagrion auranticum is 16277 bp in length,with an A+T content of 72.94%.The entire sequence exhibits AT bias.The mitochondrial genome includes 13 protein-coding genes,22 tRNA genes,2 rRNA and an A+T rich region of 1533 bp.The protein-coding genes tend to use synonymous codons of NNT and NNA.The results of molecular phylogenetic analysis indicate that the relationship between Ceriagrion auranticum and Ceriagrion fallax is the closest,followed by the closer relationship with dragonfly species in the Enallagma,Ischnura and Paracercion genera.The research results supplement the genetic sequence information of the dragonfly order and improve its systematic classification evolutionary tree.
作者
黄曼孜
唐薇镕
曹玲珍
HUANG Manzi;TANG Weirong;CAO Lingzhen(College of Animal Science and Technology,Jiangxi Agricultural University,Nanchang Jiangxi 330045,China;College of Life Sciences,Jiangxi Normal University,Nanchang Jiangxi 330022,China)
出处
《江西师范大学学报(自然科学版)》
北大核心
2025年第2期160-168,共9页
Journal of Jiangxi Normal University(Natural Science Edition)
基金
国家自然科学基金(31960558)资助项目.
