Convergent evolution of the gut microbiome in marine carnivores.

Convergent evolution of the gut microbiome in marine carnivores.
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海洋食肉动物肠道微生物组的趋同进化

DOI:
10.1002/ece3.9373
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发表时间:
2022-10
影响因子:
2.6
通讯作者:
Zhang, Honghai
Zhang, Honghai
中科院分区:
生物学2区
文献类型:
--
作者:
Wang, Xibao;Wu, Xiaoyang;Shang, Yongquan;Mei, Xuesong;Zhou, Shengyang;Wei, Qinguo;Sun, Guolei;Dong, Yuehuan;Zhang, Honghai

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摘要肠道微生物群能帮助宿主适应多种环境,受多种因素的影响。海洋食肉动物在极端环境中有独特的栖息地。海洋栖息地是否超过了系统发育,推动了海洋肉食动物肠道微生物群的趋同进化,这一问题仍然没有答案。在本研究中,我们比较了来自不同栖息地的16种动物的肠道微生物群。主成分分析(PCA)和主坐标分析(PCoA)根据肠道微生物群分为三类:海洋食肉动物、陆生食肉动物和陆生草食动物。海洋食肉动物肠道微生物群落的α多样性和生态位宽度低于陆生食肉动物和陆生草食动物肠道微生物群落。海洋食肉动物的肠道微生物群中含有许多海洋微生物,包括植物真菌门、蓝藻和变形杆菌,以及消化杆菌属。总体而言,这些结果揭示了海洋栖息地推动了海洋食肉动物肠道微生物群的趋同进化。这一研究为海洋食肉动物的适应性进化提供了新的视角。
Abstract The gut microbiome can help the host adapt to a variety of environments and is affected by many factors. Marine carnivores have unique habitats in extreme environments. The question of whether marine habitats surpass phylogeny to drive the convergent evolution of the gut microbiome in marine carnivores remains unanswered. In the present study, we compared the gut microbiomes of 16 species from different habitats. Principal component analysis (PCA) and principal coordinate analysis (PCoA) separated three groups according to their gut microbiomes: marine carnivores, terrestrial carnivores, and terrestrial herbivores. The alpha diversity and niche breadth of the gut microbiome of marine carnivores were lower than those of the gut microbiome of terrestrial carnivores and terrestrial herbivores. The gut microbiome of marine carnivores harbored many marine microbiotas, including those belonging to the phyla Planctomycetes, Cyanobacteria, and Proteobacteria, and the genus Peptoclostridium. Collectively, these results revealed that marine habitats drive the convergent evolution of the gut microbiome of marine carnivores. This study provides a new perspective on the adaptive evolution of marine carnivores.
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