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Metagenomic Analysis Identifies Sex-Related Cecal Microbial Gene Functions and Bacterial Taxa in the Quail

文献类型： 外文期刊

作者： Ma, Jing-E 1 ; Xiong, Xin-Wei 1 ; Xu, Ji-Guo 1 ; Gong, Ji-Shang 1 ; Li, Jin 1 ; Xu, Qiao 1 ; Li, Yuan-Fei 1 ; Yang, Yang- 1 ;

作者机构： 1.Nanchang Normal Univ, Inst Biol Technol, Nanchang, Jiangxi, Peoples R China

2.Jiang Xi Prov Key Lab Genet Improvement Indigenou, Nanchang, Jiangxi, Peoples R China

3.Guangdong Prov Key Lab Agroanim Genom & Mol Breed, Guangzhou, Peoples R China

4.Minist Agr, Key Lab Chicken Genet Breeding & Reprod, Guangzhou, Peoples R China

关键词： quail; gut microbiome; metagenomic analysis; reference genes; cecal bacteria

期刊名称：FRONTIERS IN VETERINARY SCIENCE （ 影响因子：3.412； 五年影响因子：3.588 ）

ISSN：

年卷期： 2021 年 8 卷

页码：

收录情况： SCI

摘要： Background: Japanese quail (Coturnix japonica) are important and widely distributed poultry in China. Researchers continue to pursue genetic selection for heavier quail. The intestinal microbiota plays a substantial role in growth promotion; however, the mechanisms involved in growth promotion remain unclear.

Results: We generated 107.3 Gb of cecal microbiome data from ten Japanese quail, providing a series of quail gut microbial gene catalogs (1.25 million genes). We identified a total of 606 main microbial species from 1,033,311 annotated genes distributed among the ten quail. Seventeen microbial species from the genera Anaerobiospirillum, Alistipes, Barnesiella, and Butyricimonas differed significantly in their abundances between the female and male gut microbiotas. Most of the functional gut microbial genes were involved in metabolism, primarily in carbohydrate transport and metabolism, as well as some active carbohydrate-degrading enzymes. We also identified 308 antibiotic-resistance genes (ARGs) from the phyla Bacteroidetes, Firmicutes and Euryarchaeota. Studies of the differential gene functions between sexes indicated that abundances of the gut microbes that produce carbohydrate-active enzymes varied between female and male quail. Bacteroidetes was the predominant ARG-containing phylum in female quail; Euryarchaeota was the predominant ARG-containing phylum in male quail.

Conclusion: This article provides the first description of the gene catalog of the cecal bacteria in Japanese quail as well as insights into the bacterial taxa and predictive metagenomic functions between male and female quail to provide a better understanding of the microbial genes in the quail ceca.

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