Open AccessVarroa destructor in Africanized honey bees in Brazil: genetic and reproductive profile
Author(s) -
Lubiane Guimarães Cestaro,
F. A. Pinto,
Érica Weinstein Teixeira,
Marta Fonseca Martins,
Maria Elizângela Ferreira Alves,
Dejair Message
Publication year - 2022
Publication title -
sociobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.378
H-Index - 38
eISSN - 2447-8067
pISSN - 0361-6525
DOI - 10.13102/sociobiology.v69i1.7340
Subject(s) - varroa destructor , biology , varroa , beekeeping , haplotype , mite , infestation , varroa sensitive hygiene , genetic variation , zoology , reproductive success , genotype , ecology , genetics , gene , botany , population , demography , sociology
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.