High‐altitude adaptation in vertebrates as revealed by mitochondrial genome analyses

Abstract The high‐altitude environment may drive vertebrate evolution in a certain way, and vertebrates living in different altitude environments might have different energy requirements. We hypothesized that the high‐altitude environment might impose different influences on vertebrate mitochondrial...

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Autores principales:	Xibao Wang, Shengyang Zhou, Xiaoyang Wu, Qinguo Wei, Yongquan Shang, Guolei Sun, Xuesong Mei, Yuehuan Dong, Weilai Sha, Honghai Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	evolution low atmospheric O2 levels mtDNA protein‐coding genes vertebrate Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/e3cf4967f19b43c3b1239771fd7f312e
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spelling	oai:doaj.org-article:e3cf4967f19b43c3b1239771fd7f312e2021-11-08T17:10:41ZHigh‐altitude adaptation in vertebrates as revealed by mitochondrial genome analyses2045-775810.1002/ece3.8189https://doaj.org/article/e3cf4967f19b43c3b1239771fd7f312e2021-11-01T00:00:00Zhttps://doi.org/10.1002/ece3.8189https://doaj.org/toc/2045-7758Abstract The high‐altitude environment may drive vertebrate evolution in a certain way, and vertebrates living in different altitude environments might have different energy requirements. We hypothesized that the high‐altitude environment might impose different influences on vertebrate mitochondrial genomes (mtDNA). We used selection pressure analyses and PIC (phylogenetic independent contrasts) analysis to detect the evolutionary rate of vertebrate mtDNA protein‐coding genes (PCGs) from different altitudes. The results showed that the ratio of nonsynonymous/synonymous substitutions (dN/dS) in the mtDNA PCGs was significantly higher in high‐altitude vertebrates than in low‐altitude vertebrates. The seven rapidly evolving genes were shared by the high‐altitude vertebrates, and only one positive selection gene (ND5 gene) was detected in the high‐altitude vertebrates. Our results suggest the mtDNA evolutionary rate in high‐altitude vertebrates was higher than in low‐altitude vertebrates as their evolution requires more energy in a high‐altitude environment. Our study demonstrates the high‐altitude environment (low atmospheric O2 levels) drives vertebrate evolution in mtDNA PCGs.Xibao WangShengyang ZhouXiaoyang WuQinguo WeiYongquan ShangGuolei SunXuesong MeiYuehuan DongWeilai ShaHonghai ZhangWileyarticleevolutionlow atmospheric O2 levelsmtDNA protein‐coding genesvertebrateEcologyQH540-549.5ENEcology and Evolution, Vol 11, Iss 21, Pp 15077-15084 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	evolution low atmospheric O2 levels mtDNA protein‐coding genes vertebrate Ecology QH540-549.5
spellingShingle	evolution low atmospheric O2 levels mtDNA protein‐coding genes vertebrate Ecology QH540-549.5 Xibao Wang Shengyang Zhou Xiaoyang Wu Qinguo Wei Yongquan Shang Guolei Sun Xuesong Mei Yuehuan Dong Weilai Sha Honghai Zhang High‐altitude adaptation in vertebrates as revealed by mitochondrial genome analyses
description	Abstract The high‐altitude environment may drive vertebrate evolution in a certain way, and vertebrates living in different altitude environments might have different energy requirements. We hypothesized that the high‐altitude environment might impose different influences on vertebrate mitochondrial genomes (mtDNA). We used selection pressure analyses and PIC (phylogenetic independent contrasts) analysis to detect the evolutionary rate of vertebrate mtDNA protein‐coding genes (PCGs) from different altitudes. The results showed that the ratio of nonsynonymous/synonymous substitutions (dN/dS) in the mtDNA PCGs was significantly higher in high‐altitude vertebrates than in low‐altitude vertebrates. The seven rapidly evolving genes were shared by the high‐altitude vertebrates, and only one positive selection gene (ND5 gene) was detected in the high‐altitude vertebrates. Our results suggest the mtDNA evolutionary rate in high‐altitude vertebrates was higher than in low‐altitude vertebrates as their evolution requires more energy in a high‐altitude environment. Our study demonstrates the high‐altitude environment (low atmospheric O2 levels) drives vertebrate evolution in mtDNA PCGs.
format	article
author	Xibao Wang Shengyang Zhou Xiaoyang Wu Qinguo Wei Yongquan Shang Guolei Sun Xuesong Mei Yuehuan Dong Weilai Sha Honghai Zhang
author_facet	Xibao Wang Shengyang Zhou Xiaoyang Wu Qinguo Wei Yongquan Shang Guolei Sun Xuesong Mei Yuehuan Dong Weilai Sha Honghai Zhang
author_sort	Xibao Wang
title	High‐altitude adaptation in vertebrates as revealed by mitochondrial genome analyses
title_short	High‐altitude adaptation in vertebrates as revealed by mitochondrial genome analyses
title_full	High‐altitude adaptation in vertebrates as revealed by mitochondrial genome analyses
title_fullStr	High‐altitude adaptation in vertebrates as revealed by mitochondrial genome analyses
title_full_unstemmed	High‐altitude adaptation in vertebrates as revealed by mitochondrial genome analyses
title_sort	high‐altitude adaptation in vertebrates as revealed by mitochondrial genome analyses
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/e3cf4967f19b43c3b1239771fd7f312e
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High‐altitude adaptation in vertebrates as revealed by mitochondrial genome analyses

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