Affiliation:
1. Vavilov Institute of General Genetics Russian Academy of Sciences
Abstract
The haplotype diversity of mtDNA of the circumpolar species of ladybirds Adalia frigida collected in Yakutsk and Salekhard was studied. Based on the analysis of the nucleotide sequences of the cox1 gene, 18 mitochondrial haplotypes were identified, of which 14 were new. Of the 18 haplotypes of A. frigida, two (H32 and H9) are the most common. In the Salekhard region, the range of A. frigida overlaps with that of another closely related species, A. bipunctata. The value of divergence in the cox1 gene between A. frigida and A. bipunctata reaches 4.1–4.3% and corresponds to the level of differences characteristic of closely related species. These species are able to interbreed, the share of hybrid individuals (A. frigida and A. bipunctata) in Salekhard is 56.5%. Hybridization between A. frigida and A. bipunctata led to mutual mitochondrial introgression, which resulted in the acquisition of the H1 haplotype by the A. frigida beetles and the H9 haplotype by the A. bipunctata beetles.
Publisher
The Russian Academy of Sciences
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