Genetic diversity and biogeography of red turpentine beetle Dendroctonus valens in its native and invasive regions
Genetic diversity and biogeography of red turpentine beetle Dendroctonus valens in its native and invasive regions作者机构：College of Life Sciences Beijing Normal University Beijing Forestry Office of Shanxi Province Taiyuan China Department of Zoology University of Bergen Bergen N-5007 Norway
出 版 物：《Insect Science》 (昆虫科学（英文版）)
年 卷 期：2008年第15卷第4期
页 面：291-301页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 071007[理学-遗传学]
主 题：biogeography genetic diversity invasive species mitochondrial DNA redturpentine beetle
摘 要：Sequences of 479 bp region of the mitochondrial COI gene were applied to detect population genetic diversity and structure ofDendroctonus valens populations. By comparing the genetic diversity between native and invasive populations, it was shown that the genetic diversity of Chinese populations was obviously lower than that of native populations with both indices of haplotype diversity and Nei＇s genetic diversity, suggesting genetic bottleneck occurred in the invasive process of D. valens, and was then followed by a relatively quick population buildup. According to phylogenetic analyses of haplotypes, we suggested that the origin of the Chinese population was from California, USA. Phylogenetic and network analysis of native populations of D. valens revealed strong genetic structure at two distinct spatial and temporal scales in North America. The main cause resulting in current biogeographic pattern was supposedly due to recycled glacial events. Meanwhile, a cryptic species might exist in the Mexican and Guatemalan populations.
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