Yin Zhongwei, Sun Keping, Li Aoqiang, Sun Deyi, Li Zhongle, Xiao Guohong, Feng Jiang
College of Life Science, Jilin Agricultural University, Changchun, China.
Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, Northeast Normal University, Changchun, China.
PeerJ. 2020 May 12;8:e9003. doi: 10.7717/peerj.9003. eCollection 2020.
The gut microbiota is closely linked to host development, diet and health and is influenced by both the host and the environment. Although many studies have focused on the dynamics of the gut microbiota during development in captive animals, few studies have focused on the dynamics of the gut microbiota during development in wild animals, especially for the order Chiroptera.
In this study, we characterized the gut microbiota of the wild Asian particolored bat () from 1 day to 6 weeks after birth. We explored the changes in their gut microbial community compositions, examined possible influencing factors, and predicted the feeding transition period.
The gut microbiota changed during the development of . The alpha diversity of the bats' gut microbiota gradually increased but did not change significantly from the 1st day to the 4th week after birth; however, the alpha diversity decreased significantly in week 5, then stabilized. The beta diversity differed slightly in weeks 4-6. In week 4, the fecal samples showed the highest diversity in bacterial community composition. Thus, we predicted that the potential feeding transition period for may occur during week 4. Redundancy analysis showed that age and body mass index significantly affected the compositional changes of the gut microbiota in Asian particolored bats.
The gut microbiota changed during the development of . We suggest that changes in the alpha and beta diversity during week 4 after birth indicate a potential feeding transition, highlighting the importance of diet in the gut microbiota during the development of .
肠道微生物群与宿主发育、饮食和健康密切相关，且受到宿主和环境的影响。尽管许多研究关注圈养动物发育过程中肠道微生物群的动态变化，但很少有研究关注野生动物发育过程中肠道微生物群的动态变化，尤其是翼手目动物。
在本研究中，我们对野生亚洲双色蝠出生后1天至6周的肠道微生物群进行了特征分析。我们探究了其肠道微生物群落组成的变化，检查了可能的影响因素，并预测了进食过渡期。
亚洲双色蝠发育过程中肠道微生物群发生了变化。蝙蝠肠道微生物群的α多样性逐渐增加，但在出生后第1天至第4周没有显著变化；然而，在第5周α多样性显著下降，然后趋于稳定。在第4 - 6周β多样性略有不同。在第4周，粪便样本的细菌群落组成多样性最高。因此，我们预测亚洲双色蝠的潜在进食过渡期可能发生在第4周。冗余分析表明，年龄和体重指数显著影响亚洲双色蝠肠道微生物群的组成变化。
亚洲双色蝠发育过程中肠道微生物群发生了变化。我们认为出生后第4周α和β多样性的变化表明存在潜在的进食转变，突出了饮食在亚洲双色蝠发育过程中对肠道微生物群的重要性。
