您好，欢迎访问上海市农业科学院 机构知识库！
上海市农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

RIP mutated ITS genes in populations ofOphiocordyceps sinensisand their implications for molecular systematics

文献类型： 外文期刊

作者： Li, Yi 1 ; Jiang, Lan 3 ; Wang, Ke 3 ; Wu, Hai-Jun 3 ; Yang, Rui-Heng 6 ; Yan, Yu-Jing 7 ; Bushley, Kathryn E. 8 ; Hawksw 1 ;

作者机构： 1.Fujian Agr & Forestry Univ, Dept Plant Protect, Fuzhou 350002, Fujian, Peoples R China

2.Yangzhou Univ, Coll Food Sci & Engn, Yangzhou 225127, Jiangsu, Peoples R China

3.Chinese Acad Sci, Inst Microbiol, State Key Lab Mycol, Beijing 100101, Peoples R China

4.East China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China

5.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China

6.Shanghai Acad Agr Sci, Inst Edible Fungi, Shanghai 201403, Peoples R China

7.Univ Copenhagen, Ctr Macroecol Evolut & Climate, Nat Hist Museum Denmark, DK-100012 Copenhagen, Denmark

8.Univ Minnesota, Dept Plant & Microbial Biol, St Paul, MN 55108 USA

9.Nat Hist Museum, Dept Life Sci, Cromwell Rd, London SW7 5BD, England

10.Royal Bot Gardens, Comparat Plant & Fungal Biol, Richmond TW9 3DS, Surrey, England

11.Jilin Agr Univ, Changchun 130118, Jilin, Peoples R China

12.Univ Southampton, Geog & Environm, Southampton SO17 1BJ, Hants, England

关键词： Caterpillar fungus; Cordyceps sinensis; ITS pseudogene; Haplotype; Phylogeny

期刊名称：IMA FUNGUS （ 影响因子：3.515； 五年影响因子：4.718 ）

ISSN： 2210-6340

年卷期： 2020 年 11 卷 1 期

页码：

收录情况： SCI

摘要： Different hypotheses have been proposed to interpret the observed unusual ITS (internal transcribed spacer) sequences inOphiocordyceps sinensis. The coexistence of diverged ITS paralogs in a single genome was previously shown by amplifying the ITS region from mono-ascospore isolates using specific primers designed for different ITS paralog groups. Among those paralogs, are AT-biased ITS sequences which were hypothesized to result from repeat-induced point mutation (RIP). This is a process that detects and mutates repetitive DNA and frequently leads to epigenetic silencing, and these mutations have been interpreted as pseudogenes. Here we investigate the occurrence and frequency of ITS pseudogenes in populations ofO. sinensisusing large-scale sampling, and discusses the implications of ITS pseudogenes for fungal phylogenetic and evolutionary studies. Our results demonstrate a wide distribution of ITS pseudogenes amongst different geographic populations, and indicate how ITS pseudogenes can contribute to the reconstruction of the evolutionary history of the species.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：上海市农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台