Evidence bees (Apis mellifera) from the Yucatan peninsula, Mexico of continued European morphometries and mtDNA in feral colonies of honey
J J G Quezada-Euan ,S M Hinsull
Sixty-five samples of honey bee (Apis mellifera)workers from feral colonies across the Yucatan peninsula, Mexico, were analysed for morphometries and mtDNA using polymerase chain reaction. Diverse associations between morphotypes and mitotypes were found across the sampled area. Although the feral population now comprises mainly (54%) pure African colonies showing no evidence of European introgression, there is a frequency of European mitotypes in feral colonies (20%). The high frequencies of continued European markers in the feral population of honey bees from the Yucatan could be explained by the population size of resident European honey bees. Further monitoring is necessary to document the persistence of such markers in the feral population and to determine whether there will be a complete replacement of European honey bees by Africanized ones.