Genetic subpopulations of Varroa mites and their Apis cerana hosts in Thailand

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Abstract

Thailand is the only place known where large populations of Mainland and Sundaland Apis cerana come into contact and where native strains of both Varroa destructor and V. jacobsoni occur. This provides a unique opportunity to investigate occurrence of Varroa species and mitochondrial lineages on different genetic lineages of A. cerana in a natural setting. We sampled Thai Varroa and A. cerana on a north to south transect, and identified mite and bee mtDNA haplotypes by RFLPs and COI sequence. Ranges of Mainland and Sundaland A. cerana meet at the Kra ecotone, between 10°34'N and 11°24'N. Varroa jacobsoni was found on both Sundaland and Mainland A. cerana; south of Kra ecotone (on Sundaland A. cerana) mites had the Malaysia haplotype, while north of Kra ecotone (on Mainland A. cerana) mites had the NorthThai1 or NorthThai2 haplotype. Varroa destructor was only found in Chiang Mai and Chiang Rai Provinces (18°36'N, 98°48'E) at altitudes above 1000 m. We found no evidence of V. destructor with so-called Japan-Thailand haplotype on Thai A. cerana. © INRA/DIB-AGIB/EDP Sciences, 2005.

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Warrit, N., Smith, D. R., & Lekprayoon, C. (2006). Genetic subpopulations of Varroa mites and their Apis cerana hosts in Thailand. Apidologie, 37(1), 19–30. https://doi.org/10.1051/apido:2005051

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