Clinal variation and selection on MDH allozymes in honeybees in Chile

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Autor:
Del Lama, MA - Souza, RO - Duran, XAA - Soares, AEE
URI:
http://repositoriodigital.uct.cl/handle/10925/3505
Datos de publicación:
HEREDITAS,Vol.140,149-153,2004
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Resumen:
Evidence of clinal variation and selection on Mdh-1 locus was observed in 27 samples from 22 sites in a 2800 km north-south transect across Chile. We found a negative correlation among F allele normalized frequency and mean temperature, and minimum temperature of January and July, as well as a positive correlation among S allele normalized frequency and annual mean, and minimum January temperatures. Our results lend weight to the idea that Chilean honeybee populations of colder areas have higher F allele frequencies, supporting previous claims that Mdh-l allozymes of Apis mellifera are subject to temperature-mediated selection.

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