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Comparative genomics reveals convergent evolution between the bamboo-eating giant and red pandas

Phenotypic convergence between distantly related taxa often mirrors adaptation to similar selective pressures and may be driven by genetic convergence. The giant panda (Ailuropoda melanoleuca) and red panda (Ailurus fulgens) belong to different families in the order Carnivora, but both have evolved... Full description

Journal Title: Proceedings of the National Academy of Sciences of the United States of America Jan 31, 2017, Vol.114(5), p.1081
Main Author: Hu, Yibo
Other Authors: Wu, Qi , Ma, Shuai , Ma, Tianxiao , Shan, Lei , Wang, Xiao , Nie, Yonggang , Ning, Zemin , Yan, Li , Xiu, Yunfang , Wei, Fuwen
Format: Electronic Article Electronic Article
Language: English
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ID: ISSN: 00278424
Link: http://search.proquest.com/docview/1865502054/?pq-origsite=primo
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title: Comparative genomics reveals convergent evolution between the bamboo-eating giant and red pandas
format: Article
creator:
  • Hu, Yibo
  • Wu, Qi
  • Ma, Shuai
  • Ma, Tianxiao
  • Shan, Lei
  • Wang, Xiao
  • Nie, Yonggang
  • Ning, Zemin
  • Yan, Li
  • Xiu, Yunfang
  • Wei, Fuwen
subjects:
  • Comparative Analysis
  • Genomics
  • Evolution
  • Pandas
  • Diet
  • Bamboo
ispartof: Proceedings of the National Academy of Sciences of the United States of America, Jan 31, 2017, Vol.114(5), p.1081
description: Phenotypic convergence between distantly related taxa often mirrors adaptation to similar selective pressures and may be driven by genetic convergence. The giant panda (Ailuropoda melanoleuca) and red panda (Ailurus fulgens) belong to different families in the order Carnivora, but both have evolved a specialized bamboo diet and adaptive pseudothumb, representing a classic model of convergent evolution. However, the genetic bases of these morphological and physiological convergences remain unknown. Through de novo sequencing the red panda genome and improving the giant panda genome assembly with added data, we identified genomic signatures of convergent evolution. Limb development genes DYNC2H1 and PCNT have undergone adaptive convergence and may be important candidate genes for pseudothumb development. As evolutionary responses to a bamboo diet, adaptive convergence has occurred in genes involved in the digestion and utilization of bamboo nutrients such as essential amino acids, fatty acids, and vitamins. Similarly, the umami taste receptor gene TAS1R1 has been pseudogenized in both pandas. These findings offer insights into genetic convergence mechanisms underlying phenotypic convergence and adaptation to a specialized bamboo diet.
language: eng
source:
identifier: ISSN: 00278424
fulltext: fulltext
issn:
  • 00278424
  • 0027-8424
url: Link


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titleComparative genomics reveals convergent evolution between the bamboo-eating giant and red pandas
creatorHu, Yibo ; Wu, Qi ; Ma, Shuai ; Ma, Tianxiao ; Shan, Lei ; Wang, Xiao ; Nie, Yonggang ; Ning, Zemin ; Yan, Li ; Xiu, Yunfang ; Wei, Fuwen
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subjectComparative Analysis ; Genomics ; Evolution ; Pandas ; Diet ; Bamboo
descriptionPhenotypic convergence between distantly related taxa often mirrors adaptation to similar selective pressures and may be driven by genetic convergence. The giant panda (Ailuropoda melanoleuca) and red panda (Ailurus fulgens) belong to different families in the order Carnivora, but both have evolved a specialized bamboo diet and adaptive pseudothumb, representing a classic model of convergent evolution. However, the genetic bases of these morphological and physiological convergences remain unknown. Through de novo sequencing the red panda genome and improving the giant panda genome assembly with added data, we identified genomic signatures of convergent evolution. Limb development genes DYNC2H1 and PCNT have undergone adaptive convergence and may be important candidate genes for pseudothumb development. As evolutionary responses to a bamboo diet, adaptive convergence has occurred in genes involved in the digestion and utilization of bamboo nutrients such as essential amino acids, fatty acids, and vitamins. Similarly, the umami taste receptor gene TAS1R1 has been pseudogenized in both pandas. These findings offer insights into genetic convergence mechanisms underlying phenotypic convergence and adaptation to a specialized bamboo diet.
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titleComparative genomics reveals convergent evolution between the bamboo-eating giant and red pandas
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abstractPhenotypic convergence between distantly related taxa often mirrors adaptation to similar selective pressures and may be driven by genetic convergence. The giant panda (Ailuropoda melanoleuca) and red panda (Ailurus fulgens) belong to different families in the order Carnivora, but both have evolved a specialized bamboo diet and adaptive pseudothumb, representing a classic model of convergent evolution. However, the genetic bases of these morphological and physiological convergences remain unknown. Through de novo sequencing the red panda genome and improving the giant panda genome assembly with added data, we identified genomic signatures of convergent evolution. Limb development genes DYNC2H1 and PCNT have undergone adaptive convergence and may be important candidate genes for pseudothumb development. As evolutionary responses to a bamboo diet, adaptive convergence has occurred in genes involved in the digestion and utilization of bamboo nutrients such as essential amino acids, fatty acids, and vitamins. Similarly, the umami taste receptor gene TAS1R1 has been pseudogenized in both pandas. These findings offer insights into genetic convergence mechanisms underlying phenotypic convergence and adaptation to a specialized bamboo diet.
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