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Rapid phenotypic ev...
Rapid phenotypic evolution with shallow genomic differentiation during early stages of high elevation adaptation in Eurasian Tree Sparrows
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- Qu, Yanhua, 1974- (författare)
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
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Chen, C H (författare)
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Xiong, Y (författare)
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She, H S (författare)
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Zhang, Y E (författare)
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Cheng, Y L (författare)
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DuBay, S (författare)
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Li, D M (författare)
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- Ericson, Per G P, 1956- (författare)
- Naturhistoriska riksmuseet,Enheten för bioinformatik och genetik
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(creator_code:org_t)
- 2019-09-12
- 2019
- Engelska.
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Ingår i: National Science Review. - : Oxford University Press (OUP). - 2053-714X .- 2095-5138.
- Relaterad länk:
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https://academic.oup...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Known as the ‘third polar region’, the Qinghai-Tibet Plateau represents one of the harshest highland environments in the world and yet a number of organisms thrive there. Previous studies of birds, animals and humans have focused on well-differentiated populations in later stages of phenotypic divergence. The adaptive processes during the initial phase of highland adaptation remain poorly understood. We studied a human commensal, the Eurasian Tree Sparrow, which has followed human agriculture to the Qinghai-Tibet Plateau. Despite strong phenotypic differentiation at multiple levels, in particular in muscle-related phenotypes, highland and lowland populations show shallow genomic divergence and the colonization event occurred within the past few thousand years. In a one-month acclimation experiment investigating phenotypic plasticity, we exposed adult lowland tree sparrows to a hypoxic environment and did not observe muscle changes. Through population genetic analyses, we identified a signature of polygenic adaptation, whereby shifts in allele frequencies are spread across multiple loci, many of which are associated with muscle-related processes. Our results reveal a case of positive selection in which polygenic adaptation appears to drive rapid phenotypic evolution, shedding light on early stages of adaptive evolution to a novel environment.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Nyckelord
- Diversity of life
- Livets mångfald
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Qu, Yanhua, 1974 ...
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Chen, C H
-
Xiong, Y
-
She, H S
-
Zhang, Y E
-
Cheng, Y L
-
visa fler...
-
DuBay, S
-
Li, D M
-
Ericson, Per G P ...
-
visa färre...
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- NATURVETENSKAP
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NATURVETENSKAP
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och Biologi
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och Evolutionsbiolog ...
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National Science ...
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Naturhistoriska riksmuseet