文献类型： 外文期刊

作者： Abuduaini, Aifeire ¹ ; Wang, Yuan-Bing ² ; Zhou, Hui-Ying ¹ ; Kang, Rui-Ping ¹ ; Ding, Ming-Liang ³ ; Jiang, Yu ⁴ ; Su ¹ ;

作者机构： 1.Xinjiang Univ, Coll Life Sci & Technol, Urumqi 830046, Peoples R China

2.Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Div & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China

3.Yunnan Acad Agr Sci, Food Crops Res Inst, Kunming 650205, Yunnan, Peoples R China

4.Guangxi Univ, Coll Life Sci & Technol, Nanning 530004, Peoples R China

5.Guangxi Univ, Guangxi Res Ctr Microbial & Enzyme Engn Technol, Nanjing 530004, Jiangsu, Peoples R China

关键词： Mitochondrial genome; Phylogenetic analysis; Ophiocordyceps gracilis; Ophiocordycipitaceae

期刊名称：IMA FUNGUS （ 影响因子：4.377； 五年影响因子：5.194 ）

ISSN： 2210-6340

年卷期： 2021 年 12 卷 1 期

页码：

收录情况： SCI

摘要： In this study, the complete mitochondrial genome of O. gracilis was sequenced and assembled before being compared with related species. As the second largest mitogenome reported in the family Ophiocordycipitaceae, the mitogenome of O. gracilis (voucher OG201301) is a circular DNA molecule of 134,288 bp that contains numerous introns and longer intergenomic regions. UCA was detected as anticodon in tRNA-Sec of O. gracilis, while comparative mitogenome analysis of nine Ophiocordycipitaceae fungi indicated that the order and contents of PCGs and rRNA genes were considerably conserved and could descend from a common ancestor in Ophiocordycipitaceae. In addition, the expansion of mitochondrial organization, introns, gene length, and order of O. gracilis were determined to be similar to those of O. sinensis, which indicated common mechanisms underlying adaptive evolution in O. gracilis and O. sinensis. Based on the mitochondrial gene dataset (15 PCGs and 2 RNA genes), a close genetic relationship between O. gracilis and O. sinensis was revealed through phylogenetic analysis. This study is the first to investigate the molecular evolution, phylogenetic pattern, and genetic structure characteristics of mitogenome in O. gracilis. Based on the obtained results, the mitogenome of O. gracilis can increase understanding of the genetic diversity and evolution of cordycipitoid fungi.