Divergence, dispersal and recombination in Lepiota cristata from China

	Divergence, dispersal and recombination in Lepiota cristata from China
	Liang, J. F.1,2; Xu, J.3 ; Yang, Z. L.1
通讯作者	fungi@mail.kib.ac.cn
	2009-09-30
发表期刊	FUNGAL DIVERSITY
ISSN	1560-2745
卷号	38 页码:105-124
摘要	The basidiomycete Lepiota cristata (Agaricales) is among the most widely distributed saprophytic Mushrooms in the Northern Hemisphere. It's commonly found on humus-rich soil in a variety of terrestrial habitats, from roadsides to forest floors. In this study, we analyzed 47 isolates of the L. cristata species complex from China using DNA sequences from three loci (the internal transcribed spacer region or ITS, the inter-genic spacer or IGS, and the mitochondrial small ribosomal subunit RNA gene or mtSSU rRNA). Our analyses identified abundant sequence variation and potentially divergent lineages within L. cristata for each of the three loci. Interestingly, there were significant differences among the three gene genealogies and our linkage disequilibrium analyses identified unambiguous evidence of recombination, hybridization and/or incomplete lineage sorting. Furthermore, several sequence types were shared among isolates from diverse geographic locations for each of the three analyzed loci. Our population genetic analyses indicated limited evidence for genetic differentiation among geographic populations, suggesting that long-distance gene flow might be common among geographic populations of this species in China. We discuss the implications Of Our results with regard to the Population biology and taxonomy of this widely distributed but under-studied species.
关键词	Basidiomycete Genetic Diversity Gene Flow Recombination Cryptic Species
学科领域	Mycology
收录类别	SCI
语种	英语
WOS记录号	WOS:000271500200006
引用统计	被引频次：37[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/3170
专题	中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China 2.Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China 3.McMaster Univ, Dept Biol, Ctr Environm Genom, Hamilton, ON L8S 4K1, Canada
推荐引用方式 GB/T 7714	Liang, J. F.,Xu, J.,Yang, Z. L.. Divergence, dispersal and recombination in Lepiota cristata from China[J]. FUNGAL DIVERSITY,2009,38:105-124.
APA	Liang, J. F.,Xu, J.,&Yang, Z. L..(2009).Divergence, dispersal and recombination in Lepiota cristata from China.FUNGAL DIVERSITY,38,105-124.
MLA	Liang, J. F.,et al."Divergence, dispersal and recombination in Lepiota cristata from China".FUNGAL DIVERSITY 38(2009):105-124.

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