期刊
CONSERVATION GENETICS
卷 15, 期 3, 页码 631-653出版社
SPRINGER
DOI: 10.1007/s10592-014-0566-3
关键词
Leopardus guigna; Felid; Phylogeography; Demographic history; Dispersal barriers
资金
- Instituto de Ecologia y Biodiversidad (IEB, Facultad de Ciencias, Universidad de Chile) [ICM P05-002]
- Emerging Leaders in The Americas Program (ELAP, Canadian Bureau for International Education, Government of Canada)
- CONICYT, Chile
- Instituto de Ecologia y Biodiversidad (Facultad de Ciencias, Universidad de Chile)
- Panthera Kaplan Awards Program (Panthera Foundation, New York, USA)
- Scott Neotropical Fund Award (Cleveland Metroparks Zoo & the Cleveland Zoological Society, Cleveland, USA)
- Eric York Scholarship (Felidae Conservation Fund, California, USA)
- Intramural Research Program of the NCI, NIH
The guigna (Leopardus guigna) is the smallest and most-restricted New World cat species, inhabiting only around 160,000 km(2) of temperate rain forests in southern South America and is currently threatened by habitat loss, fragmentation and human persecution. We investigated phylogeographic patterns of genetic diversity, demographic history and barriers to gene flow with 116 individuals sampled across the species geographic range by analyzing 1,798 base pairs of the mtDNA (496 bp HVSI region, 720 bp NADH-5 gene, 364 bp from 16S gene and 218 bp from ATP-8 gene) and 15 microsatellite loci. Mitochondrial DNA data revealed a clear phylogeographic pattern with moderate separation between northern and southern Chilean populations supporting recognized subspecific partitions based on morphology. A recent demographic expansion was inferred for the southern-most group (San Rafael Lake), presumably due to the complete coverage of this area during the last glacial period, 28000-16000 years BP. Geographical barriers such as the Andes Mountains and the Chacao Channel have partially restricted historic and more-recent gene flow and the Chilo, Island population has diverged genetically since being separated from the mainland 7000 years BP. This is the first study of the genetic structure of this threatened species throughout its whole geographic range.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据