Complete Mitochondrial Genome of Apis cerana (Hymenoptera: Apidae) from Two Geographical Regions: Insights into Structure and Genetic Differentiation

文献类型： 外文期刊

第一作者： Chen, Yuhui

作者： Chen, Yuhui;Su, Runlang;Zhu, Rui;Ding, Guiling;Guo, Zhanbao;Huang, Jiaxing;Chen, Yuhui;Su, Runlang;Zhu, Rui;Ding, Guiling;Guo, Zhanbao;Huang, Jiaxing;Su, Runlang;Du, Lin

作者机构：

关键词： honeybee; Apis cerana; mitochondrial genome; phylogenetic relationship; group differentiation

期刊名称：INSECTS （ 影响因子：2.9； 五年影响因子：3.3 ）

ISSN：

年卷期： 2024 年 15 卷 12 期

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收录情况： SCI

摘要： The honeybee Apis cerana is an important pollinator that is distributed across most regions in China. Mitochondrial DNA (mtDNA) is inherited maternally in bees; therefore, the mtDNA characteristics of a single bee can represent those of the entire colony. Comparing the mitochondrial genomes of A. cerana from different geographic regions via third-generation sequencing technology could provide insights into species differentiation and enable the identification of stable molecular markers to distinguish among geographically distinct populations. Here, we determined the complete mitochondrial genomes of the Apis cerana-Diannan and Apis cerana-Yun-Gui Plateau populations by using PacBio HiFi sequencing technology. The A. cerana-Diannan and A. cerana-Yun-Gui Plateau mitochondrial genome lengths were 16,214 and 16,304 bp, respectively. Both A. cerana mitochondrial genomes contained 13 protein-coding genes (PCGs), 22 transfer RNAs (tRNAs), 2 ribosomal RNAs (rRNAs) and an AT-rich region. The relative synonymous codon usage (RSCU) values for 13 PCGs were greater than 1. The length of the AT-rich region of A. cerana in different regions was different. Phylogenetic analyses revealed that these two geographically distinct A. cerana populations belong to the same phylogenetic branch, but the genetic distance between DN and YG is further than that between YG and A. cerana-Aba and A. cerana-Central China. Overall, A. cerana with different geographic distributions exhibit genetic diversity at the mitochondrial genome level. A large fragment was found to be inserted or deleted in the AT-rich region, shedding light on the genetic differentiation of A. cerana in different ecological environments.

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