Patterns in Gut Microbiota Similarity Associated with Degree of Sociality among Sex Classes of a Neotropical Primate
Patterns in Gut Microbiota Similarity Associated with Degree of Sociality among Sex Classes of a Neotropical Primate
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DOI：
10.1007/s00248-017-0938-6
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发表时间：
2017-07-01
影响因子：
3.6
通讯作者：
Leigh, Steven R.
中科院分区：
文献类型：
--
作者：
Amato, Katherine R.;Van Belle, Sarie;Leigh, Steven R.
对人类和家畜模型的研究表明，相关个体和那些身体接触时间最长的人通常有更相似的肠道微生物群落。然而，很少有研究在野生哺乳动物中检验这些因素，在这些因素中，复杂的社会动态和各种相互作用的环境因素可能会影响在受控系统中观察到的模式。在这里，我们探索宿主亲缘关系和社交时间对野生黑色咆哮猴(Alouatta Pgra)肠道微生物区系的影响。我们的结果表明，与非亲缘关系密切的个体相比，亲缘关系密切的个体的肠道微生物群落相似性较低。然而，效果并不大。相比之下，正如之前在狒狒和黑猩猩中所报告的那样，接触时间更长(0米)和近距离接触(0-1米)的个体拥有更相似的肠道微生物群落。这种模式是由成年女性-成年女性双体驱动的，它们通常比成年男性-成年男性双体或成年男性-成年女性双体花更多的时间在社交上。接触或近距离接触时间较长的个体，其单个微生物属如类杆菌、梭状芽胞杆菌和链球菌的相对丰度也更为相似。总体而言，我们的数据表明，即使在树栖灵长类动物中，即使是生活在较小的社会群体中，花在身体接触上的时间比例相对较低，社会互动也与肠道微生物区系组成的变化有关。此外，这些结果表明，在给定的寄主物种中，个体的亚组可能与肠道微生物区系以不同的方式相互作用。
Studies of human and domestic animal models indicate that related individuals and those that spend the most time in physical contact typically have more similar gut microbial communities. However, few studies have examined these factors in wild mammals where complex social dynamics and a variety of interacting environmental factors may impact the patterns observed in controlled systems. Here, we explore the effect of host kinship and time spent in social contact on the gut microbiota of wild, black howler monkeys (Alouatta pigra). Our results indicate that closely related individuals had less similar gut microbial communities than non-related individuals. However, the effect was small. In contrast, as previously reported in baboons and chimpanzees, individuals that spent more time in contact (0 m) and close proximity (0-1 m) had more similar gut microbial communities. This pattern was driven by adult female-adult female dyads, which generally spend more time in social contact than adult male-adult male dyads or adult male-adult female dyads. Relative abundances of individual microbial genera such as Bacteroides, Clostridium, and Streptococcus were also more similar in individuals that spent more time in contact or close proximity. Overall, our data suggest that even in arboreal primates that live in small social groups and spend a relatively low proportion of their time in physical contact, social interactions are associated with variation in gut microbiota composition. Additionally, these results demonstrate that within a given host species, subgroups of individuals may interact with the gut microbiota differently.