Population genetic structure and phylogeography of the mud-flat crabs Helice tientsinensis and Helice latimera along the coast of China seas based on mitochondrial DNA

2012 ◽  
Vol 11 (16) ◽  
Author(s):  
Jing Ming Xu
Keyword(s):  
Mitochondrial Dna ◽  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
China Seas ◽  
Mud Flat ◽  
Helice Tientsinensis

Population genetic structure of golden pheasant Chrysolophus pictus in the Qinling Mountains, China

2012 ◽  
Vol 62 (2) ◽  
pp. 231-243 ◽  
Author(s):  
Zuhao Huang ◽  
Xiaoping Yu ◽  
Wei Liang
Keyword(s):  
Mitochondrial Dna ◽  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Central China ◽  
Qinling Mountains ◽  
Geographical Isolation ◽  
Natural Barrier

The golden pheasant (Chrysolophus pictus) is an endemic pheasant of central China and is protected under national legislation. The Qinling Mountains form a natural barrier between northern and southern China. We investigated the population genetic structure using 1123 nucleotides of mitochondrial DNA (mtDNA) control-region from 55 individuals sampled from five populations of gold pheasant in the Qinling Mountains. We found sixteen haplotypes defined by fourteen polymorphic sites. Phylogenetic analyses showed that the haplotypes sampled from the five putative populations did not cluster into separate geographic branches. There was an insignificant genetic differentiation among the putative populations (except GSTS population), probably due to high levels of gene flow. Results from the mismatch distribution and neutrality test analyses indicated the populations did not experience a range expansion over the course of their histories. They also suggested there was no geographical isolation shaped by the Qingling Mountains for Chrysolophus pictus.

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