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DOI:	10.1371/journal.pone.0105455
论文题名:	Population Structure of Mountain Pine Beetle Symbiont Leptographium longiclavatum and the Implication on the Multipartite Beetle-Fungi Relationships
作者:	Clement Kin-Ming Tsui; Lina Farfan; Amanda D. Roe; Adrianne V. Rice; Janice E. K. Cooke; Yousry A. El-Kassaby; Richard C. Hamelin
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-8-25
卷:	9, 期:8
语种:	英语
英文关键词:	Population genetics ; Fungal structure ; Fungal genetics ; Beetles ; Pines ; Genetic loci ; Plant fungal pathogens ; Rocky Mountains
英文摘要:	Over 18 million ha of forests have been destroyed in the past decade in Canada by the mountain pine beetle (MPB) and its fungal symbionts. Understanding their population dynamics is critical to improving modeling of beetle epidemics and providing potential clues to predict population expansion. Leptographium longiclavatum and Grosmannia clavigera are fungal symbionts of MPB that aid the beetle to colonize and kill their pine hosts. We investigated the genetic structure and demographic expansion of L. longiclavatum in populations established within the historic distribution range and in the newly colonized regions. We identified three genetic clusters/populations that coincide with independent geographic locations. The genetic profiles of the recently established populations in northern British Columbia (BC) and Alberta suggest that they originated from central and southern BC. Approximate Bayesian Computation supports the scenario that this recent expansion represents an admixture of individuals originating from BC and the Rocky Mountains. Highly significant correlations were found among genetic distance matrices of L. longiclavatum, G. clavigera, and MPB. This highlights the concordance of demographic processes in these interacting organisms sharing a highly specialized niche and supports the hypothesis of long-term multipartite beetle-fungus co-evolutionary history and mutualistic relationships.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0105455&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18599
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0105455.PDF（571KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia, Canada;Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia, Canada;Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada;Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada;Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada;Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia, Canada;Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, British Columbia, Canada;Natural Resources Canada, Canadian Forest Services, Laurentian Forestry Centre, Québec City, Québec, Canada

Recommended Citation:

Clement Kin-Ming Tsui,Lina Farfan,Amanda D. Roe,et al. Population Structure of Mountain Pine Beetle Symbiont Leptographium longiclavatum and the Implication on the Multipartite Beetle-Fungi Relationships[J]. PLOS ONE,2014-01-01,9(8)

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