author_facet Wang, XiaoYun
Liang, Dan
Jin, Wei
Tang, MingKun
Shalayiwu
Liu, ShaoYing
Zhang, Peng
Wang, XiaoYun
Liang, Dan
Jin, Wei
Tang, MingKun
Shalayiwu
Liu, ShaoYing
Zhang, Peng
author Wang, XiaoYun
Liang, Dan
Jin, Wei
Tang, MingKun
Shalayiwu
Liu, ShaoYing
Zhang, Peng
spellingShingle Wang, XiaoYun
Liang, Dan
Jin, Wei
Tang, MingKun
Shalayiwu
Liu, ShaoYing
Zhang, Peng
Molecular Biology and Evolution
Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
Genetics
Molecular Biology
Ecology, Evolution, Behavior and Systematics
author_sort wang, xiaoyun
spelling Wang, XiaoYun Liang, Dan Jin, Wei Tang, MingKun Shalayiwu Liu, ShaoYing Zhang, Peng 0737-4038 1537-1719 Oxford University Press (OUP) Genetics Molecular Biology Ecology, Evolution, Behavior and Systematics http://dx.doi.org/10.1093/molbev/msaa026 <jats:title>Abstract</jats:title><jats:p>Pikas are widely distributed in the Northern Hemisphere and are highly adapted to cold and alpine environments. They are one of the most complex and problematic groups in mammalian systematics, and the origin and evolutionary history of extant pikas remain controversial. In this study, we sequenced the whole coding sequences of 105 pika samples (29 named species and 1 putative new species) and obtained DNA data for more than 10,000 genes. Our phylogenomic analyses recognized four subgenera of extant pikas: Alienauroa, Conothoa, Ochotona, and Pika. The interrelationships between the four subgenera were strongly resolved as (Conothoa, (Alienauroa, (Ochotona, Pika))), with the mountain group Conothoa being the sister group of all other pikas. Our divergence time and phylogeographic analyses indicated that the last common ancestor of extant pikas first occurred on in the middle Miocene, ∼14 Ma. The emergence of opportunities related to the climate, food supply, and spreading paths in concert promoted the dispersal of pikas from the Qinghai-Tibetan Plateau (QTP) to other parts of Eurasia and North America. We found that the genes that were positively selected in the early evolution of pikas were most concentrated in functional categories related to cold tolerance. These results suggest that the QTP may have served as a training ground for cold tolerance in early pikas, which gives pikas a great advantage when the climate continued to cool after the middle Miocene. Our study highlights the importance of the QTP as a center of origin for many cold-adapted animals.</jats:p> Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas Molecular Biology and Evolution
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title Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_unstemmed Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_full Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_fullStr Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_full_unstemmed Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_short Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_sort out of tibet: genomic perspectives on the evolutionary history of extant pikas
topic Genetics
Molecular Biology
Ecology, Evolution, Behavior and Systematics
url http://dx.doi.org/10.1093/molbev/msaa026
publishDate 2020
physical 1577-1592
description <jats:title>Abstract</jats:title><jats:p>Pikas are widely distributed in the Northern Hemisphere and are highly adapted to cold and alpine environments. They are one of the most complex and problematic groups in mammalian systematics, and the origin and evolutionary history of extant pikas remain controversial. In this study, we sequenced the whole coding sequences of 105 pika samples (29 named species and 1 putative new species) and obtained DNA data for more than 10,000 genes. Our phylogenomic analyses recognized four subgenera of extant pikas: Alienauroa, Conothoa, Ochotona, and Pika. The interrelationships between the four subgenera were strongly resolved as (Conothoa, (Alienauroa, (Ochotona, Pika))), with the mountain group Conothoa being the sister group of all other pikas. Our divergence time and phylogeographic analyses indicated that the last common ancestor of extant pikas first occurred on in the middle Miocene, ∼14 Ma. The emergence of opportunities related to the climate, food supply, and spreading paths in concert promoted the dispersal of pikas from the Qinghai-Tibetan Plateau (QTP) to other parts of Eurasia and North America. We found that the genes that were positively selected in the early evolution of pikas were most concentrated in functional categories related to cold tolerance. These results suggest that the QTP may have served as a training ground for cold tolerance in early pikas, which gives pikas a great advantage when the climate continued to cool after the middle Miocene. Our study highlights the importance of the QTP as a center of origin for many cold-adapted animals.</jats:p>
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author Wang, XiaoYun, Liang, Dan, Jin, Wei, Tang, MingKun, Shalayiwu, Liu, ShaoYing, Zhang, Peng
author_facet Wang, XiaoYun, Liang, Dan, Jin, Wei, Tang, MingKun, Shalayiwu, Liu, ShaoYing, Zhang, Peng, Wang, XiaoYun, Liang, Dan, Jin, Wei, Tang, MingKun, Shalayiwu, Liu, ShaoYing, Zhang, Peng
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description <jats:title>Abstract</jats:title><jats:p>Pikas are widely distributed in the Northern Hemisphere and are highly adapted to cold and alpine environments. They are one of the most complex and problematic groups in mammalian systematics, and the origin and evolutionary history of extant pikas remain controversial. In this study, we sequenced the whole coding sequences of 105 pika samples (29 named species and 1 putative new species) and obtained DNA data for more than 10,000 genes. Our phylogenomic analyses recognized four subgenera of extant pikas: Alienauroa, Conothoa, Ochotona, and Pika. The interrelationships between the four subgenera were strongly resolved as (Conothoa, (Alienauroa, (Ochotona, Pika))), with the mountain group Conothoa being the sister group of all other pikas. Our divergence time and phylogeographic analyses indicated that the last common ancestor of extant pikas first occurred on in the middle Miocene, ∼14 Ma. The emergence of opportunities related to the climate, food supply, and spreading paths in concert promoted the dispersal of pikas from the Qinghai-Tibetan Plateau (QTP) to other parts of Eurasia and North America. We found that the genes that were positively selected in the early evolution of pikas were most concentrated in functional categories related to cold tolerance. These results suggest that the QTP may have served as a training ground for cold tolerance in early pikas, which gives pikas a great advantage when the climate continued to cool after the middle Miocene. Our study highlights the importance of the QTP as a center of origin for many cold-adapted animals.</jats:p>
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spelling Wang, XiaoYun Liang, Dan Jin, Wei Tang, MingKun Shalayiwu Liu, ShaoYing Zhang, Peng 0737-4038 1537-1719 Oxford University Press (OUP) Genetics Molecular Biology Ecology, Evolution, Behavior and Systematics http://dx.doi.org/10.1093/molbev/msaa026 <jats:title>Abstract</jats:title><jats:p>Pikas are widely distributed in the Northern Hemisphere and are highly adapted to cold and alpine environments. They are one of the most complex and problematic groups in mammalian systematics, and the origin and evolutionary history of extant pikas remain controversial. In this study, we sequenced the whole coding sequences of 105 pika samples (29 named species and 1 putative new species) and obtained DNA data for more than 10,000 genes. Our phylogenomic analyses recognized four subgenera of extant pikas: Alienauroa, Conothoa, Ochotona, and Pika. The interrelationships between the four subgenera were strongly resolved as (Conothoa, (Alienauroa, (Ochotona, Pika))), with the mountain group Conothoa being the sister group of all other pikas. Our divergence time and phylogeographic analyses indicated that the last common ancestor of extant pikas first occurred on in the middle Miocene, ∼14 Ma. The emergence of opportunities related to the climate, food supply, and spreading paths in concert promoted the dispersal of pikas from the Qinghai-Tibetan Plateau (QTP) to other parts of Eurasia and North America. We found that the genes that were positively selected in the early evolution of pikas were most concentrated in functional categories related to cold tolerance. These results suggest that the QTP may have served as a training ground for cold tolerance in early pikas, which gives pikas a great advantage when the climate continued to cool after the middle Miocene. Our study highlights the importance of the QTP as a center of origin for many cold-adapted animals.</jats:p> Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas Molecular Biology and Evolution
spellingShingle Wang, XiaoYun, Liang, Dan, Jin, Wei, Tang, MingKun, Shalayiwu, Liu, ShaoYing, Zhang, Peng, Molecular Biology and Evolution, Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas, Genetics, Molecular Biology, Ecology, Evolution, Behavior and Systematics
title Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_full Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_fullStr Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_full_unstemmed Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_short Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
title_sort out of tibet: genomic perspectives on the evolutionary history of extant pikas
title_unstemmed Out of Tibet: Genomic Perspectives on the Evolutionary History of Extant Pikas
topic Genetics, Molecular Biology, Ecology, Evolution, Behavior and Systematics
url http://dx.doi.org/10.1093/molbev/msaa026