Varroa destructor in Africanized honey bees in Brazil: genetic and reproductive profile.

The mite Varroa destructor is one of the most studied parasites in apiculture, and its genotype variation is a key factor for the severity of infestation in bee colonies. Here we report the genetic and reproductive profile of mites from 14 Brazilian states with different geographic and climatic conditions. We performed PCR to amplify a fragment of the COI gene and differentiate the haplotypes using restriction enzymes. The K haplotype was widely prevalent in the studied sites, while the J haplotype was found only in four municipalities. We also observed both haplotypes (J and K) coexisting in the same colony, a fact unprecedented in Brazil. Infestation levels were low (0.33 to 15.3%). The reproductive potential showed wide variation (0 to 1.5), indicating that even with the massive presence of K haplotype, environmental and biotic factors related to Africanized honeybees may be responsible for maintaining the mite under low levels in Brazil.

Bibliographic Details

Main Authors:	PINTO, F. A., TEIXEIRA, E. W., GUIMARÃES-CESTARO, L., MARTINS, M. F., ALVES, M. L. T. M. F., MESSAGE, D.
Other Authors:	FÁBIO A. PINTO, Universidade Federal de Viçosa; ÉRICA W. TEIXEIRA, Agência Paulista de Tecnologia dos Agronegócios; LUBIANE GUIMARÃES-CESTARO, Universidade Federal de Viçosa; MARTA FONSECA MARTINS, CNPGL; MARIA LUISA T. M. F. ALVES, Agência Paulista de Tecnologia dos Agronegócios; DEJAIR MESSAGE, Universidade Federal Rural do Semi-Árido.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2022-09-01
Subjects:	Patologia, Parasita, Perfil genético, Perfil reprodutivo, Abelha Africana, Acari, Apidae,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1145963 https://doi.org/10.13102/sociobiology.v69i1.7340
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