Comparative Analysis of the Gut Microbial Communities of the Eurasian Kestrel (Falco tinnunculus) at Different Developmental Stages.
Comparative Analysis of the Gut Microbial Communities of the Eurasian Kestrel (Falco tinnunculus) at Different Developmental Stages.
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红隼不同发育阶段肠道微生物群落的比较分析
DOI：
10.3389/fmicb.2020.592539
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发表时间：
2020
影响因子：
5.2
通讯作者：
Feng J
中科院分区：
文献类型：
--
作者：
Zhou L;Huo X;Liu B;Wu H;Feng J
肠道微生物群在动物的生命中发挥着非常重要的作用。尽管近年来越来越多的研究对鸟类肠道微生物群进行了调查，但对野生鸟类，特别是被认为是病原体载体的肉食猛禽肠道微生物群的研究工作却很缺乏。还缺乏针对猛禽发育过程中肠道微生物群动态的研究。在这项研究中，利用16S rRNA基因扩增子高通量测序分析了中型猛禽欧亚红隼（Falcotinnunculus）的肠道微生物群落组成，并揭示了雏鸟在羽化前阶段肠道微生物群的阶段特异性特征。此外，还探讨了同一栖息地中成虫和雏鸟肠道微生物群的差异。结果表明，欧亚红隼拥有多样化的肠道微生物群。变形菌门、厚壁菌门、放线菌门和拟杆菌门是成虫和雏鸡肠道内共有的主要门。然而，成虫具有较高丰度的变形菌门，而雏鸟则表现出较高丰度的厚壁菌门和放线菌门，因此在雏鸡中观察到的大多数优势属与成虫不同。尽管在雏鸟个体发育过程中，各年龄组的多样性没有显着差异，但所有生长阶段的雏鸡都比成年雏鸡拥有更丰富、更多样化的细菌群落。相比之下，成年雏鸟和幼雏雏鸟肠道微生物群落的差异更为明显。雏鸟在生长的最后阶段肠道微生物与成虫趋同。该研究为野生鸟类肠道微生物群落结构的研究提供了基础参考数据，加深了我们对猛禽发育过程中肠道微生物群动态的认识。
The gut microflora play a very important role in the life of animals. Although an increasing number of studies have investigated the gut microbiota of birds in recent years, there is a lack of research work on the gut microbiota of wild birds, especially carnivorous raptors, which are thought to be pathogen vectors. There are also a lack of studies focused on the dynamics of the gut microbiota during development in raptors. In this study, 16S rRNA gene amplicon high-throughput sequencing was used to analyze the gut microbiota community composition of a medium-sized raptor, the Eurasian Kestrel (Falco tinnunculus), and to reveal stage-specific signatures in the gut microbiota of nestlings during the pre-fledging period. Moreover, differences in the gut microbiota between adults and nestlings in the same habitat were explored. The results indicated that the Eurasian Kestrel hosts a diverse assemblage of gut microbiota. Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes were the primary phyla shared within the guts of adults and chicks. However, adults harbored higher abundances of Proteobacteria while nestlings exhibited higher abundances of Firmicutes and Actinobacteria, and consequently the majority of dominant genera observed in chicks differed from those in adults. Although no significant differences in diversity were observed across the age groups during nestling ontogeny, chicks from all growth stages harbored richer and more diverse bacterial communities than adults. In contrast, the differences in gut microbial communities between adults and younger nestlings were more pronounced. The gut microbes of the nestlings in the last growth stage were converged with those of the adults. This study provides basic reference data for investigations of the gut microbiota community structure of wild birds and deepens our understanding of the dynamics of the gut microflora during raptor development.
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影响因子：
15.5
作者：
Davis MY;Zhang H;Brannan LE;Carman RJ;Boone JH
通讯作者：
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影响因子：
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作者：
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作者：
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