期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 24, 期 21, 页码 -出版社
MDPI
DOI: 10.3390/ijms242115836
关键词
microbial community structure; phylosymbiosis pattern; stochastic effect; codiversification; ecological filtering
Insects harbor diverse symbionts and studying the interactions between hosts and their symbionts provides valuable insights. Phylosymbiosis is a pattern that shows a positive correlation between host phylogeny and microbial community dissimilarities. The prevalence and mechanisms of phylosymbiosis in insects are still not well understood.
Insects harbor diverse assemblages of bacterial and fungal symbionts, which play crucial roles in host life history. Insects and their various symbionts represent a good model for studying host-microbe interactions. Phylosymbiosis is used to describe an eco-evolutionary pattern, providing a new cross-system trend in the research of host-associated microbiota. The phylosymbiosis pattern is characterized by a significant positive correlation between the host phylogeny and microbial community dissimilarities. Although host-symbiont interactions have been demonstrated in many insect groups, our knowledge of the prevalence and mechanisms of phylosymbiosis in insects is still limited. Here, we provide an order-by-order summary of the phylosymbiosis patterns in insects, including Blattodea, Coleoptera, Diptera, Hemiptera, Hymenoptera, and Lepidoptera. Then, we highlight the potential contributions of stochastic effects, evolutionary processes, and ecological filtering in shaping phylosymbiotic microbiota. Phylosymbiosis in insects can arise from a combination of stochastic and deterministic mechanisms, such as the dispersal limitations of microbes, codiversification between symbionts and hosts, and the filtering of phylogenetically conserved host traits (incl., host immune system, diet, and physiological characteristics).
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