Article
Signatures of high-altitude adaptation in the major hemoglobin of five species of andean dabbling ducks.
The American naturalist - 1 Nov 2009
McCracken Kevin G, Barger Christopher P, Bulgarella Mariana, Johnson Kevin P, Kuhner Mary K, Moore Andrew V, Peters Jeffrey L, Trucco Jorge, Valqui Thomas H, Winker Kevin, Wilson Robert E
Abstract excerpt
Hypoxia is one of the most important factors affecting survival at high altitude, and the major hemoglobin protein is a likely target of selection. We compared population genetic structure in the alphaA and betaA hemoglobin subunits (HBA2 and HBB) of five paired lowland and highland populations of Andean dabbling ducks to unlinked reference loci. In the hemoglobin genes, parallel amino acid replacements were...
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