フルテキストファイル
著者
Velez Patricia Instituto de Biología, Universidad Nacional Autónoma de México / Departamento de Microbiología Experimental, Centro de Investigación Científica y de Educación Superior de Ensenada
Gasca-Pineda Jaime Instituto de Ecologia, Universidad Nacional Autonoma de Mexico / Present address: Departamento de Biologia de la Conservacion, Centro de Investigacion Cientifica y de Educacion Superior de Ensenada
Nakagiri Akira Division of Genetic Resource Preservation and Evaluation, Fungus/Mushroom Resource and Research Center, Tottori University 鳥取大学研究者総覧 KAKEN研究者をさがす
Hanlin Richard T. Mycology Herbarium, Museum of Natural History Annex, University of Georgia
González María C. Instituto de Biología, Universidad Nacional Autónoma de México
キーワード
dispersal
gene flow
ITS rDNA
marine Ascomycota
molecular ecology
NDC分類
4類 自然科学
抄録
The study of genetic variation in fungi has been poor since the development of the theoretical underpinnings of population genetics, specifically in marine taxa. Corollospora maritima sensu lato is an abundant cosmopolitan marine fungus, playing a crucial ecological role in the intertidal environment. We evaluated the extent and distribution of the genetic diversity in the nuclear ribosomal internal transcribed spacer region of 110 isolates of this ascomycete from 19 locations in the Gulf of Mexico, Caribbean Sea and Pacific Ocean. The diversity estimates demonstrated that C. maritima sensu lato possesses a high genetic diversity compared to other cosmopolitan fungi, with the highest levels of variability in the Caribbean Sea. Globally, we registered 28 haplotypes, out of which 11were specific to the Caribbean Sea, implying these populations are genetically unique. We detected populations inhabiting human-impacted sites with null genetic variation. As long-term exposure to contaminants has been proven to decrease genetic diversity, a conservation genetics approach to assess this matter is urgent. Our results revealed the occurrence of five genetic lineages with distinctive environmental preferences and an overlapping geographical distribution, agreeing with previous studies reporting physiological races within this species.
出版者
Water de Gruyter
資料タイプ
学術雑誌論文
外部リンク
https://www.degruyter.com/view/j/botm.2016.59.issue-5/bot-2016-0058/bot-2016-0058
ISSN・ISBN
00068055
書誌ID
AA00572622
掲載誌名
Botanica marina
最新掲載誌名
Botanica marina
59
5
開始ページ
307
終了ページ
320
発行日
2016
DOI
著者版フラグ
出版社版
掲載情報
Botanica marina. 2016, 59(5), 307-320
部局名
農学部・農学研究科
言語
英語