Limited genetic structure and diversity in the water rail Rallus aquaticus L., 1758 (Aves: Gruiformes: Rallidae) revealed by mitochondrial DNA analysis

作者：Stermin A N; David A^*; Pripon L R; Sevianu E; Seifert N; Eilers A; Fregin S; Haase M; Ornes A Schmitz

来源：Italian Journal of Zoology, 2014, 81(4): 496-500.

DOI：10.1080/11250003.2014.952357

• COI
• Pleistocene refuges
• range expansion
• Palearctic
• Rallidae

A previous, geographically limited study, has found very little genetic structure in the water rail Rallus aquaticus based on cytochrome oxidase I sequences. Adding samples from Romania, Montenegro, Germany and Spain, we investigated whether the new data confirm the picture of genetic homogeneity or if there is more diverse structure, e.g. due to survival in different Pleistocene refuges. Among 75 studied individuals, there were 12 haplotypes, one of them very common, the others differing in only one or two positions. The high haplotype diversity in Kazakhstan suggested that diversification has been ongoing for a longer time than in the other areas, assuming similar substitution rates across the entire species. Only one rare haplotype was shared between Kazakhstan and another region, specifically Romania. All other rare haplotypes had narrow distributions and probably evolved after the range expansion towards the west. Apparently, gene flow has been restricted in the recent past. The Romanian population was genetically intermediate between Kazakhstan and the western populations. The genetic structure of the populations supported a post-glacial out-of-Central-Asia scenario.

• 出版日期2014-10-2