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Title: Physiological Genomics of Adaptation to High-Altitude Hypoxia
Population genomic studies of humans and other animals at high altitude have generated many hypotheses about the genes and pathways that may have contributed to hypoxia adaptation. Future advances require experimental tests of such hypotheses to identify causal mechanisms. Studies to date illustrate the challenge of moving from lists of candidate genes to the identification of phenotypic targets of selection, as it can be difficult to determine whether observed genotype–phenotype associations reflect causal effects or secondary consequences of changes in other traits that are linked via homeostatic regulation. Recent work on high-altitude models such as deer mice has revealed both plastic and evolved changes in respiratory, cardiovascular, and metabolic traits that contribute to aerobic performance capacity in hypoxia, and analyses of tissue-specific transcriptomes have identified changes in regulatory networks that mediate adaptive changes in physiological phenotype. Here we synthesize recent results and discuss lessons learned from studies of high-altitude adaptation that lie at the intersection of genomics and physiology.  more » « less
Award ID(s):
1755411 1736249
NSF-PAR ID:
10244174
Author(s) / Creator(s):
;
Date Published:
Journal Name:
Annual Review of Animal Biosciences
Volume:
9
Issue:
1
ISSN:
2165-8102
Page Range / eLocation ID:
149 to 171
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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    Key points

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     Abstract

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