Phylogeography and demographic history of Siberian rubythroat Luscinia calliope

作者：Л. Н. Спиридонова, O. P. Valchuk, Ya. А. Red’kin, Takashi Saitoh, A. P. Kryukov · 发表于：Russian Journal of Genetics · 年份：2017 · DOI：10.1134/s1022795417080105 · 被引用次数：38 · 研究领域：Animal Ecology and Behavior Studies、Genetic diversity and population structure、Plant Taxonomy and Phylogenetics

Phylogeographic analysis on the basis of individual marker variability provides insight into the history and mechanisms of the range formation of widely distributed species. A preliminary study of the mtDNA cytochrome b gene in Siberian rubythroat Luscinia calliope revealed the existence of three well-differentiated haplogroups, including one western and two eastern haplogroups. Continuing the study of the genetic markers of the species, we found that, in western part of the range, represented by the nominative geographic race, there were almost exclusively haplotypes of western group. In eastern populations of Khabarovsk krai, Chukotka, Kamchatka, and Sakhalin, haplotypes of all groups are mixed in different proportions. At the same time, the populations of Hokkaido and Iturup islands are exclusively represented by individuals with eastern haplotypes. Comparison of the identified nuclear copies of mitochondrial genes and construction of the phylogenetic network of haplotypes on the basis of cloned and initial sequences showed that two groups of eastern haplotypes (one of which geographically corresponded to L. c. anadyrensis and L. c. camtschatkensis and the second corresponded to L. c. sachalinensis ) originated from nuclear pseudogenes of L. c. calliope through intergenomic recombination. In this regard, we propose a new hypothesis for the establishment of the modern range of this species, according to which the Siberian rubythroat dispersal from South Siberia occurred in ...