Título
Africanization of honey bees (Apis mellifera) in three climatic regions of northern Mexico
Autor
CARLOS AURELIO MEDINA FLORES
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
This study was conducted to analyze the process of Africanization of managed
honey bee (Apis mellifera) colonies by determining the frequency of
African and European morphotypes and mitotypes (mtDNA) in three different
ecological environments of northern Mexico. Colonies (n= 151) were
sampled in 1) temperate semi-dry; 2) semi-warm semi-dry; and 3) temperate
sub-humid regions in the state of Zacatecas. The mtDNA type was
determined by PCR-RFLP and the morphotype by the Fast Africanized Bee
Identification System (FABIS). Out of all the colonies sampled in all areas, the
mtDNA analysis showed a significantly higher frequency of European maternal
lineage (77.5%) than of African maternal lineage (22.5%; P <0.0001).
The morphometric analysis classified 47% of the colonies as European and
42.4% of them as Africanized. The frequency of colonies with African or
European mitotypes and morphotypes varied significantly between regions
(P <0.05) with results indicating a higher degree of Africanization in the
semi-warm semi-dry region. Conversely, the highest frequency of colonies
with the European morphotype and mitotype occurred in the temperate
semi-dry region. These results suggest that the environment affects the degree
of Africanization of honey bee colonies in northern Mexico. Colonies
established at higher altitudes and in more temperate climates have more
European genotypes than colonies established in tropical regions. Several
hypotheses are discussed to explain these results.
Producción Científica de la Universidad Autónoma de Zacatecas UAZ
Fecha de publicación
diciembre de 2015
Tipo de publicación
Artículo
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Público en general
Repositorio Orígen
Repositorio Institucional Caxcán
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