Gut bacterial and fungal communities of the domesticated silkworm (Bombyx mori) and wild mulberry-feeding relatives

Bombyx mori , the domesticated silkworm, is of great importance as a silk producer and as a powerful experimental model for the basic and applied research. Similar to other animals, abundant microorganisms live inside the silkworm gut; however, surprisingly, the microbiota of this model insect has n...

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Vydané v:	The ISME Journal Ročník 12; číslo 9; s. 2252 - 2262
Hlavní autori:	Chen, Bosheng, Du, Kaiqian, Sun, Chao, Vimalanathan, Arunprasanna, Liang, Xili, Li, Yong, Wang, Baohong, Lu, Xingmeng, Li, Lanjuan, Shao, Yongqi
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	London Nature Publishing Group UK 01.09.2018 Oxford University Press
Predmet:	631/158/855 631/326/2565/2134 Animals Bacteria - classification Bacteria - genetics Bacteria - isolation & purification Biomedical and Life Sciences Bombyx - growth & development Bombyx - microbiology Bombyx mori Butterflies & moths Communities Deoxyribonucleic acid DNA Domestication Ecology Egg production Environmental factors Evolutionary Biology Feeding Fungi Fungi - classification Fungi - genetics Fungi - isolation & purification Gastrointestinal Microbiome Instars Intestinal microflora Life Sciences Microbial Ecology Microbial Genetics and Genomics Microbiology Microbiota Microorganisms Morus Moths - microbiology Ribonucleic acid RNA Silk Silkworms
ISSN:	1751-7362, 1751-7370, 1751-7370
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Shrnutí:	Bombyx mori , the domesticated silkworm, is of great importance as a silk producer and as a powerful experimental model for the basic and applied research. Similar to other animals, abundant microorganisms live inside the silkworm gut; however, surprisingly, the microbiota of this model insect has not been well characterized to date. Here, we comprehensively characterized the gut microbiota of the domesticated silkworm and its wild relatives. Comparative analyses with the mulberry-feeding moths Acronicta major and Diaphania pyloalis revealed a highly diverse but distinctive silkworm gut microbiota despite thousands of years of domestication, and stage-specific signatures in both total (DNA-based) and active (RNA-based) bacterial populations, dominated by the phyla Proteobacteria, Firmicutes, Actinobacteria, and Bacteroidetes. Most fungal sequences were assigned to the phyla Ascomycota and Basidiomycota. Environmental factors, including diet and human manipulation (egg production), likely influence the silkworm gut composition. Despite a lack of spatial variation along the gut, microbial community shifts were apparent between early instars and late instars, in concert with host developmental changes. Our results demonstrate that the gut microbiota of silkworms assembles into increasingly identical community throughout development, which differs greatly from those of other mulberry-feeding lepidopterans from the same niche, highlighting host-specific effects on microbial associations and the potential roles these communities play in host biology.
Bibliografia:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23
ISSN:	1751-7362 1751-7370 1751-7370
DOI:	10.1038/s41396-018-0174-1