西北师范大学学报（自然科学版）2026，Vol.62Issue(5)：16-25,10.DOI:10.16783/j.cnki.nwnuz.2026.05.003
兴隆山棘豆完整叶绿体基因组结构与特征
The complete chloroplast genome structure and characteristics of Oxytropis xinglongshanica C.W.Chang
摘要
Abstract
Oxytropis xinglongshanica C.W.Chang,a member of the genus Oxytropis DC.in the subfamily Faboideae(Fabaceae),is an excellent leguminous forage grass.Given the unclear taxonomic status of this species within Oxytropis,we performed paired-end sequencing,assembly and annotation of its complete chloroplast genome on the Illumina platform,and further explored its phylogenetic implications.The chloroplast genome of O.xinglongshanica exhibits a distinctive structural feature with the loss of the typical inverted repeat regions,being a completely single-copy genome.It has a total length of 124 132 bp and an overall GC content of 34.45％,harboring 109 functional genes including 76 protein-coding genes,29 tRNA genes and 4 rRNA genes.Phylogenetic analysis revealed that Oxytropis,which forms a sister clade with Astragalus L.,is a monophyletic group,and the species within Oxytropis show low molecular sequence divergence and close genetic relationships.关键词
兴隆山棘豆/叶绿体基因组/系统发育分析/豆科Key words
Oxytropis xinglongshanica/chloroplast genome/phylogenetic analysis/Fabaceae分类
农业科技引用本文复制引用
荣静,白洁,高若纯,赵祥,孙坤..兴隆山棘豆完整叶绿体基因组结构与特征[J].西北师范大学学报（自然科学版）,2026,62(5):16-25,10.基金项目
甘肃省青年科技基金资助项目(25JRRA029) （25JRRA029）
西北师范大学青年教师科研能力提升计划项目(NWNU-LKQN2024-17) （NWNU-LKQN2024-17）
