Genetic diversity and biogeography of red turpentine beetleDendroctonus valensin its native and invasive regions
| Autor: | Xin-Yue Cheng, Rumei Xu, Dong-Hong Duan, Lawrence R. Kirkendall, Yan-Wen Cai |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Species complex
education.field_of_study Genetic diversity Phylogenetic tree Ecology Population Population genetics Biology General Biochemistry Genetics and Molecular Biology Invasive species Population bottleneck Evolutionary biology Insect Science Genetic structure education human activities Agronomy and Crop Science Ecology Evolution Behavior and Systematics |
| Zdroj: | Insect Science. 15:291-301 |
| ISSN: | 1744-7917 1672-9609 |
| DOI: | 10.1111/j.1744-7917.2008.00213.x |
| Popis: | Sequences of 479 bp region of the mitochondrial COI gene were applied to detect population genetic diversity and structure of Dendroctonus 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|