Individual fate and gut microbiome composition in the European wild rabbit (Oryctolagus cuniculus).
Individual fate and gut microbiome composition in the European wild rabbit (Oryctolagus cuniculus).
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DOI：
10.1038/s41598-020-80782-4
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发表时间：
2021-01-12
影响因子：
4.6
通讯作者：
Casamayor EO
中科院分区：
文献类型：
--
作者：
Funosas G;Triadó-Margarit X;Castro F;Villafuerte R;Delibes-Mateos M;Rouco C;Casamayor EO
野生动物中微生物组组成和功能表现的研究很少受到关注，迫切需要了解它们与野生动物身体状况的联系。我们研究了欧洲野兔在野生种群中的异域亚种和在圈养条件下研究的捕获个体之间的肠道微生物群（硬粪粒）的变化。我们评估了环境和宿主特定因素的影响。野生兔子种群的微生物组在受控条件下降低了其异质性。测试的宿主特异性因素均与微生物群组成无关。我们仅观察到年龄因素的组内离散度显著。最多样化的微生物组在瘤胃球菌科中丰富，可能具有丰富的功能谱，纤维素酶和木聚糖酶占主导地位，并表明在富含纤维的食物的消化中具有更高的效率。相反，低多样性肠道微生物组显示肠杆菌科可能富含淀粉酶的优势。我们初步注意到，在西南部比在西班牙东北部的Ruminococcaceae具有更高的优势，在外地人口的地理变化。空间差异似乎不是亚种驱动的，因为它们在圈养中丢失，而是环境驱动的，尽管社会结构和行为的差异也可能发挥作用，值得进一步研究。在圈养家兔中观察到瘤胃球菌科/肠杆菌科比例与潜在预期寿命之间存在轻微显著关系。我们假设肠道微生物组可能决定了摄食资源开发的效率，也可能是预期寿命的潜在代表，并可能用于管理野生草食性种群的下降。这些假设仍有待于今后的探讨。
Studies connecting microbiome composition and functional performance in wildlife have received little attention and understanding their connections with wildlife physical condition are sorely needed. We studied the variation in gut microbiota (hard fecal pellets) between allopatric subspecies of the European wild rabbit in wild populations and in captured individuals studied under captivity. We evaluated the influence of environmental and host-specific factors. The microbiome of wild rabbit populations reduced its heterogeneity under controlled conditions. None of the host-specific factors tested correlated with the microbiota composition. We only observed significant intra-group dispersion for the age factor. The most diverse microbiomes were rich in Ruminococcaceae potentially holding an enriched functional profile with dominance of cellulases and xylanases, and suggesting higher efficiency in the digestion of fiber-rich food. Conversely, low diversity gut microbiomes showed dominance of Enterobacteriaceae potentially rich in amylases. We preliminary noticed geographical variations in field populations with higher dominance of Ruminococcaceae in south-western than in north-eastern Spain. Spatial differences appeared not to be subspecies driven, since they were lost in captivity, but environmentally driven, although differences in social structure and behavior may also play a role that deserve further investigations. A marginally significant relationship between the Ruminococcaceae/Enterobacteriaceae ratio and potential life expectancy was observed in captive rabbits. We hypothesize that the gut microbiome may determine the efficiency of feeding resource exploitation, and can also be a potential proxy for life expectancy, with potential applications for the management of declining wild herbivorous populations. Such hypotheses remain to be explored in the future.
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鼠兔种群密度与肠道微生物群的组成和多样性有关
影响因子：
5.2
作者：
Li H;Qu J;Li T;Li J;Lin Q;Li X
通讯作者：
Li X
影响因子：
16.6
作者：
通讯作者：
--
影响因子：
4
作者：
Carro, Francisco;Ortega, Monica;Soriguer, Ramon C.
通讯作者：
Soriguer, Ramon C.
影响因子：
1.7
作者：
COWAN, DP
通讯作者：
COWAN, DP
影响因子：
4.4
作者：
Gillilland, Merritt G., III;Erb-Downward, John R.;Huffnagle, Gary B.
通讯作者：
Huffnagle, Gary B.