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Abstract <p>Using 17 microsatellite loci and a specially developed mitochondrial DNA marker, we studied the genetic relationships of Russian Far East fir species—<i>Abies nephrolepis</i> and <i>Abies sachalinensis</i> in the area of contact of their ranges, and <i>Abies gracilis</i>. Based on microsatellite and mitochondrial DNA data, the presence of a transition zone on Sakhalin between the populations of the southern and northern parts of the range of <i>A. sachalinensis</i> was confirmed. In the area of the mouth of the Amur River, according to microsatellite data, a transition zone between <i>A. nephrolepis</i> and <i>A. sachalinensis</i> is observed. On the western shore of the Tatar Strait in the vicinity of the city of Sovetskaya Gavan, a mixture of genetic markers characteristic of <i>A.&#xa0;sachalinensis</i> and <i>A. nephrolepis</i> is also observed. Moreover, in the latter population there is also a mitochondrial haplotype characteristic of the southern form of <i>A. sachalinensis</i>, which indicates a gene flow between the island and the continent, occurring not only due to the transfer of pollen, but also seeds.</p>

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Nuclear and Mitochondrial Data Confirm Gene Flow between Sakhalin and Mainland Fir Populations

  • 期刊论文

  • 发表日期：

    2026年2月1日

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  • V. L. Semerikov,
  • S. A. Semerikova,
  • M. N. Koldaeva

摘要

Abstract

Using 17 microsatellite loci and a specially developed mitochondrial DNA marker, we studied the genetic relationships of Russian Far East fir species—Abies nephrolepis and Abies sachalinensis in the area of contact of their ranges, and Abies gracilis. Based on microsatellite and mitochondrial DNA data, the presence of a transition zone on Sakhalin between the populations of the southern and northern parts of the range of A. sachalinensis was confirmed. In the area of the mouth of the Amur River, according to microsatellite data, a transition zone between A. nephrolepis and A. sachalinensis is observed. On the western shore of the Tatar Strait in the vicinity of the city of Sovetskaya Gavan, a mixture of genetic markers characteristic of A. sachalinensis and A. nephrolepis is also observed. Moreover, in the latter population there is also a mitochondrial haplotype characteristic of the southern form of A. sachalinensis, which indicates a gene flow between the island and the continent, occurring not only due to the transfer of pollen, but also seeds.