Geometric morphology and population genomics provide insights into the adaptive evolution of Apis cerana in Changbai Mountain

文献类型： 外文期刊

第一作者： Liu Nannan

作者： Liu Nannan;Liu Huamiao;Ju Yan;Li Yang;Wang Tianjiao;Xing Xiumei;Liu Nannan;Li Xingan;He Jinming;Niu Qingsheng

作者机构：

关键词： Apis cerana in Changbai Mountain; Wing geometry; Population genomics; Genetic differentiation; Genetic diversity; Adaptive evolution

期刊名称：BMC GENOMICS （ 影响因子：4.547； 五年影响因子：4.931 ）

ISSN： 1471-2164

年卷期： 2022 年 23 卷 1 期

页码：

收录情况： SCI

摘要： Background Exploration of adaptive evolution of organisms in response to environmental change can help to understand the evolutionary history of species and the underlying mechanisms of adaptation to local environments, thus guiding future conservation programmes. Before the introduction of Apis mellifera in China, eastern honey bees (Apis cerana) were the only species used for beekeeping in this region. In the mountains of Changbai, populations of A. cerana are considered a distinct ecotype of the species which formed through the distinct selective pressures in this area over time. Result We performed a measure of 300 wing specimens of eastern honey bees and obtained the geometric morphological variation in the wing of A. cerana in Changbai Mountain. A total of 3,859,573 high-quality SNP loci were yielded via the whole-genome resequencing of 130 individuals in 5 geographic regions. Conclusion Corresponding geometric morphology and population genomics confirmed the particularity of the A. cerana in Changbai Mountain. Genetic differentiation at the subspecies level exists between populations in Changbai Mountain and remaining geographic regions, and a significant reduction in the effective population size and an excessive degree of inbreeding may be responsible for a substantial loss of population genetic diversity. Candidate genes potentially associated with cold environmental adaptations in populations under natural selection were identified, which may represent local adaptations in populations. Our study provided insights into the evolutionary history and adaptation of A. cerana in Changbai Mountain, as well as its conservation.

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