Divergence and dispersal of the nematode-trapping fungus Arthrobotrys oligospora from China

被引：16

作者：

Zhang, Ying ^{[1
,2
]}

Yu, Ze-Fen ^{[1
,2
]}

Xu, Jianping ^{[1
,2
,3
]}

Zhang, Ke-Qin ^{[1
,2
]}

机构：

[1] Yunnan Univ, Lab Conservat & Utilizat Bioresources, Kunming 650091, Yunnan, Peoples R China

[2] Yunnan Univ, Key Lab Microbial Resources, Minist Educ, Kunming 650091, Yunnan, Peoples R China

[3] McMaster Univ, Dept Biol, Hamilton, ON L8S 4K1, Canada

来源：

ENVIRONMENTAL MICROBIOLOGY REPORTS | 2011年 / 3卷 / 06期

关键词：

GENETIC DIFFERENTIATION; SPECIES RECOGNITION; CRYPTIC SPECIATION; CANDIDA-ALBICANS; SEQUENCE-DATA; RECOMBINATION; DIVERSITY; EVOLUTION; PHYLOGEOGRAPHY; POPULATION;

D O I：

10.1111/j.1758-2229.2011.00297.x

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Nematode-trapping fungi are of significant agricultural, forestry and ecological importance. However, relatively little is known about the patterns of genetic variation for any nematode-trapping fungus through its broad geographic and ecological contexts. Here, we analysed DNA sequence variation among strains of the nematode-trapping fungus Arthrobotrys oligospora from China. Our analyses revealed that the Chinese A. oligospora is a species complex with at least three divergent lineages (cryptic species). In addition, there was significant geographic structuring with unambiguous evidence for localized recombination within two of the three lineages in nature. However, evidence for clonal reproduction was also found. We discuss the implications of our results to the conservation and biocontrol application of A. oligospora in agriculture and forestry.

引用

页码：763 / 773

页数：11

共 34 条

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