Consulta: subjectFacets:"Transition area"
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Data/hora: 09/06/2024 01:33:30

Genetic structure of honeybee populations from southern Brazil and Uruguay
Provedor de dados: 74
Autores: Diniz,Nilza Maria; Soares,Ademilson Espencer Egea; Sheppard,Walter Steve; Del Lama,Marco Antonio.
Apis mellifera scutellata was introduced to Brazil in 1956 and Africanized honeybee populations have now spread from Argentina to the southwestern United States. Temperate climatic restrictions seem to be a natural limit to Africanized honeybee expansion around parallels 35° to 40° SL. We used allozyme loci (Mdh-1 and Hk-1) and mtDNA haplotypes to characterize honeybee populations in southern Brazil and Uruguay and define a possible transition area between Africanized and European bees. Samples of 194 bee colonies were collected from ten localities between 30°-35° SL and 52°-59° WL. The mtDNA restriction patterns of these colonies were obtained through digestion of the mitochondrial genome by Eco RI, or by digestion by Bgl II and Xba I of the cytochrome B...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Africanized honeybees; Transition area; South America; MtDNA; Allozymes; Population genetics.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100008