Population genetic structure and its implication in the conservation of Schizopygopsis pylzovi in Yellow River as inferred from mitochondrial DNA sequence analysis

作者：Yuying Ma, Yanzhen Du, Yan Zhang, T. Wang · 发表于：Genetics and Molecular Research · 年份：2016 · DOI：10.4238/gmr.15038480 · 被引用次数：2 · 研究领域：Genetic diversity and population structure、Isotope Analysis in Ecology、Genomics and Phylogenetic Studies

between the MT and WY was highest, and that between the YZ and YJ was lowest. The neighbor-joining phylogenetic tree demonstrated that all geographic populations were not monophyletic, but overlapped each other, indicating that the duration of geographical isolation was not long enough or the populations had not yet reached significant genetic isolation or differentiation at the monophyletic level. Tajima's D and Fu's Fs were negative and statistically significant, indicating that S. pylzovi had experienced certain population expansion events, which is consistent with the hypothesis that the headwater area of the Yellow River was dramatically affected by the geological and climatic upheaval during the Quaternary ice age. Our analysis indicated that the management units corresponding to the WY population should be managed and conserved first. In situ conservation is first recommended to protect the original habitat from further destruction.