Genetic variation among trait groups and apparent absence of close inbreeding in grey-crowned babblers |
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Authors: | M S Johnson J L Brown |
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Institution: | (1) Department of Zoology, University of Western Australia, 6009 Nedlands, Western Australia;(2) Department of Biological Sciences, State University of New York, 12222 Albany, New York, USA |
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Abstract: | Summary The grey-crowned babbler, Pomastostomus temporalis, is a non-migratory species with delayed breeding and prolonged association of young with siblings and parents. Since these conditions are conducive to incestuous matings, we have studied allozymic variation in a population in southeastern Queensland, to evaluate the possibility of close inbreeding. Eight of 20 loci tested were polymorphic, with an average proportion of heterozygous loci individual of 9.4%. No deficiency of heterozygotes was found, indicating the absence of detectable inbreeding. Some mechanism that prevents inbreeding seems to be present. |
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