Identification of novel bat coronaviruses sheds light on the evolutionary origins of SARS-CoV-2 and related viruses.

Identification of novel bat coronaviruses sheds light on the evolutionary origins of SARS-CoV-2 and related viruses.
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DOI:
10.1016/j.cell.2021.06.008
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发表时间:
2021-08-19
期刊:
影响因子:
64.5
通讯作者:
Shi W
Shi W
中科院分区:
生物学1区
文献类型:
--
作者:
Zhou H;Ji J;Chen X;Bi Y;Li J;Wang Q;Hu T;Song H;Zhao R;Chen Y;Cui M;Zhang Y;Hughes AC;Holmes EC;Shi W

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尽管发现了与SARS-CoV-2相关的动物冠状病毒,但这种病毒的进化起源尚不清楚。我们描述了2019年5月至2020年11月期间从中国云南省一个小地理区域收集的411份蝙蝠样本的meta转录组学研究。我们鉴定出24种冠状病毒全长基因组,包括4种新型sars - cov -2相关病毒和3种sars - cov相关病毒。在大部分基因组中,鼻鼻us pusillus病毒RpYN06是SARS-CoV-2的近亲,尽管它具有更不同的刺突基因。其他三种与sars - cov -2相关的冠状病毒携带一种遗传上独特的刺突基因,该基因在体外可以与hACE2受体弱结合。生态模型预测,多达23种犀牛蝠共存,最大的连续热点从老挝南部和越南延伸到中国南部。我们的研究强调了蝙蝠冠状病毒在局部范围内的显著多样性,包括SARS-CoV-2和SARS-CoV的近亲。一项对2019年至2020年在中国云南省收集的411个蝙蝠样本的研究得出了24个全长冠状病毒基因组,其中包括与SARS- cov -2高度相关的4种病毒和与SARS高度相关的3种病毒。与SARS-CoV-2最接近的近亲感染了一种蝙蝠,这种蝙蝠分布在从老挝南部和越南到中国南部的地区。
Despite the discovery of animal coronaviruses related to SARS-CoV-2, the evolutionary origins of this virus are elusive. We describe a meta-transcriptomic study of 411 bat samples collected from a small geographical region in Yunnan province, China, between May 2019 and November 2020. We identified 24 full-length coronavirus genomes, including four novel SARS-CoV-2-related and three SARS-CoV-related viruses. Rhinolophus pusillus virus RpYN06 was the closest relative of SARS-CoV-2 in most of the genome, although it possessed a more divergent spike gene. The other three SARS-CoV-2-related coronaviruses carried a genetically distinct spike gene that could weakly bind to the hACE2 receptor in vitro. Ecological modeling predicted the co-existence of up to 23 Rhinolophus bat species, with the largest contiguous hotspots extending from South Laos and Vietnam to southern China. Our study highlights the remarkable diversity of bat coronaviruses at the local scale, including close relatives of both SARS-CoV-2 and SARS-CoV. A study of 411 bat samples collected in Yunnan province, China between 2019 and 2020 yields 24 full-length coronavirus genomes, including four viruses highly related to SARS-CoV-2 and three to SARS. The closest relative to SARS-CoV-2 infects a species of bats that is found in regions that extend from South Laos and Vietnam to southern China.
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