No correlation between multi‐locus heterozygosity and fitness in the common buzzard despite heterozygote advantage for plumage colour
No correlation between multi‐locus heterozygosity and fitness in the common buzzard despite heterozygote advantage for plumage colour
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尽管羽毛颜色具有杂合优势,但普通秃鹰的多位点杂合性和健康度之间没有相关性
DOI:
10.1111/jeb.12221
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发表时间:
2013
影响因子:
2.1
通讯作者:
Krüger
中科院分区:
文献类型:
--
作者:
Boerner;Hoffman;Chakarov;Krüger
Correlations between heterozygosity and fitness are frequently found but rarely well understood. Fitness can be affected by single loci of large effect which correlate with neutral markers via linkage disequilibrium, or as a result of variation in genome‐wide heterozygosity following inbreeding. We explored these alternatives in the common buzzard, a raptor species in which three colour morphs differ in their lifetime reproductive success. Using 18 polymorphic microsatellite loci, we evaluated potential genetic differences among the morphs which may lead to subpopulation structuring and tested for correlations between three fitness‐related traits and heterozygosity, both genome wide and at each locus separately. Despite their assortative mating pattern, the buzzard morphs were found to be genetically undifferentiated. Multilocus heterozygosity was only found to be correlated with a single fitness‐related trait, infection with the blood parasite,Leucocytozoon buteonis, and this was via interactions with vole abundance and age. One locus also showed a significant relationship with blood parasite infection and ectoparasite infestation. The vicinity of this locus contains two genes, one of which is potentially implicated in the immune system of birds. We conclude that genome‐wide heterozygosity is unlikely to be a major determinant of parasite burden and body condition in the polymorphic common buzzard.
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影响因子:
3.3
作者:
J. K. Pritchard;Matthew Stephens;Peter Donnelly
通讯作者:
J. K. Pritchard;Matthew Stephens;Peter Donnelly
影响因子:
2.4
作者:
Boerner, M.;Krueger, O.
通讯作者:
Krueger, O.
DOI:
--
发表时间:
2005
期刊:
Journal für Ornithologie
影响因子:
--
作者:
A. Schreiber;A. Stubbe;M. Stubbe
通讯作者:
M. Stubbe
影响因子:
5.2
作者:
Chakarov, N.;Boerner, M.;Krueger, O.
通讯作者:
Krueger, O.
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
E. Korpimäki;P. Tolonen;G. Bennett
通讯作者:
G. Bennett