Matches in SemOpenAlex for { <https://semopenalex.org/work/W3046720009> ?p ?o ?g. }
- W3046720009 abstract "High-altitude environments require that animals meet the metabolic O 2 demands for locomotion and thermogenesis in O 2 -thin air, but the degree to which convergent metabolic changes have arisen across independent high-altitude lineages or the speed at which such changes arise is unclear. We examined seven high-altitude waterfowl that have inhabited the Andes (3812–4806 m elevation) over varying evolutionary time scales, to elucidate changes in biochemical pathways of energy metabolism in flight muscle relative to low-altitude sister taxa. Convergent changes across high-altitude taxa included increased hydroxyacyl-coA dehydrogenase and succinate dehydrogenase activities, decreased lactate dehydrogenase, pyruvate kinase, creatine kinase, and cytochrome c oxidase activities, and increased myoglobin content. ATP synthase activity increased in only the longest established high-altitude taxa, whereas hexokinase activity increased in only newly established taxa. Therefore, changes in pathways of lipid oxidation, glycolysis, and mitochondrial oxidative phosphorylation are common strategies to cope with high-altitude hypoxia, but some changes require longer evolutionary time to arise." @default.
- W3046720009 created "2020-08-07" @default.
- W3046720009 creator A5025612892 @default.
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- W3046720009 creator A5069628579 @default.
- W3046720009 creator A5074069112 @default.
- W3046720009 creator A5091105334 @default.
- W3046720009 date "2020-07-30" @default.
- W3046720009 modified "2023-10-10" @default.
- W3046720009 title "Convergent changes in muscle metabolism depend on duration of high-altitude ancestry across Andean waterfowl" @default.
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