Evidence of positive selection in mitochondrial complexes I and V of the African elephant.
Evidence of positive selection in mitochondrial complexes I and V of the African elephant.
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DOI:
10.1371/journal.pone.0092587
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Eggert LS
中科院分区:
文献类型:
--
作者:
Finch TM;Zhao N;Korkin D;Frederick KH;Eggert LS
As species evolve, they become adapted to their local environments. Detecting the genetic signature of selection and connecting that to the phenotype of the organism, however, is challenging. Here we report using an integrative approach that combines DNA sequencing with structural biology analyses to assess the effect of selection on residues in the mitochondrial DNA of the two species of African elephants. We detected evidence of positive selection acting on residues in complexes I and V, and we used homology protein structure modeling to assess the effect of the biochemical properties of the selected residues on the enzyme structure. Given the role these enzymes play in oxidative phosphorylation, we propose that the selected residues may contribute to the metabolic adaptation of forest and savanna elephants to their unique habitats.
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DOI:
10.1073/pnas.0911239106
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