Effects of Persistent Introgression on Mitochondrial DNA Genetic Structure and Diversity in the Apis cerana cerana Population
Zhou S, Jia M, Long Y, Zhou B, Wang Y, Zhang Z, Wang Y, Zhang D, Xu X, Zhu X.
Abstract
The prevalence of non-native subspecies introductions in the Daloushan (DL) region raises questions about their specific impact on population structure and population diversity. This study examined the tRNA leu-COII sequence of 217 samples in the region, identified genetic lineage admixture, and detected two distinct types of introgression within Apis cerana cerana from southern and northern origins. This finding was confirmed through gene flow analysis using whole-genome data. Furthermore, there is inconsistency in the internal genetic structure of the DL population, with varying levels of genetic diversity. This suggests that continuous gene flow has kept the Apis cerana populations in the region in a state of instability, emphasizing the necessity of early protection for honeybees with local genetic characteristics.
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