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The diversity, recombination and horizontal transmission of Wolbachia in spiders in China
Journal of Asia-Pacific Entomology ( IF 1.1 ) Pub Date : 2021-08-03 , DOI: 10.1016/j.aspen.2021.08.003
Xiao-Hui Yang 1 , Yu-Hui Gong 1 , Xiang Xu 1 , Hai-Qiang Yin 1 , Dao-Hong Zhu 2
Affiliation  

Wolbachia are maternally inherited endosymbiotic bacteria. These intracellular bacteria are common in arthropods and could manipulate host reproduction in diverse ways, such as feminization, parthenogenesis, male killing and cytoplasmic incompatibility. In spiders, infection by Wolbachia has been found in a total of 99 species belonging to 62 genera and 17 families. Furthermore, recent studies analyzed the phylogeny of Wolbachia in Hylyphantes graminicola, 2 cave spiders and Agelenopsis species using multilocus sequence typing (MLST) approach. However, the diversity of Wolbachia strains determined by MLST in spiders from China is still largely unknown.

In this study, we collected 1153 spider individuals from Mangshan in China and screened for Wolbachia in 975 individuals representing 68 spider species belonging to 45 genera of 16 families. We analyzed the phylogenetic relationship between Wolbachia and their host spiders by MLST approach. We found novel infections of Wolbachia in 1 family, 9 genera and 20 species of spiders. We found 13 new Wolbachia strains and suggest that group A is more common than group B in Wolbachia that infect spiders. Our results revealed three recombination events of the concatenated multilocus sequences in Wolbachia that infect spiders. Furthermore, our results demonstrated the phylogenetic incongruence between Wolbachia and spiders, suggesting the horizontal transmission of Wolbachia in spiders.

We suggest that recombination and horizontal transmission may play an important role in the diversity and evolution of Wolbachia in spiders.

更新日期:2021-08-26
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