Polymerase chain reaction(PCR)-ampliÞedmitochondrialDNA(mtDNA)assayshave been used in studies of the Africanization process in neotropical feral and managed honey bee populations. The approach has been adopted, in conjunction with morphometric analysis, to identify Africanized bees for regulatory purposes in the United States such as in California. In this study, 211 Old World colonies, represe...

ABSTRACT- Annual Medicago species (Medicago spp.) are native to the Mediterranean region and widely used in fields and pastures in Iran. There are several methods of sowing annual Medicago species, each with different effects on the performance. However, there is currently no sufficient information about the appropriate methods for sowing Medicago species. In order to evaluate methods of sowing...

The invasion of Africanized honeybees (Apis mellifera L.) in the Americas provides a window of opportunity to study the dynamics of secondary contact of subspecies of bees that evolved in allopatry in ecologically distinctive habitats of the Old World. We report here the results of an 11-year mitochondrial DNA survey of a feral honeybee population from southern United States (Texas). The mitoch...

We here reconsider the status of subgenus Hemichaeta Steyskal, concluding that there is no justification to keep it in the genus Poecilotylus Hennig. Hemichaeta is thus removed from Poecilotylus and elevated to generic status with Hemichaeta scutellata (Cresson) as the type and only included species. Hemichaeta scutellata is fully redescribed, including the previously undescribed male and femal...

abstract- annual medicago species (medicago spp.) are native to the mediterranean region and widely used in fields and pastures in iran. there are several methods of sowing annual medicago species, each with different effects on the performance. however, there is currently no sufficient information about the appropriate methods for sowing medicago species. in order to evaluate methods of sowing...

Apis mellifera capensis is unique among honeybees in that unmated workers can produce pseudo-clonal female offspring via thelytokous parthenogenesis. Workers use this ability to compete among themselves and with their queen to be the mother of new queens. Males could therefore enhance their reproductive success by imprinting genes that enhance fertility in their daughter workers. This possibili...