Association of host genetics with intestinal microbiota relevant to body weight in a chicken F2 resource population
文献类型： 外文期刊
作者： Ji, J. 1 ; Luo, C. L. 1 ; Zou, X. 1 ; Lv, X. H. 1 ; Xu, Y. B. 1 ; Shu, D. M. 1 ; Qu, H. 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Anim Sci, Guangdong Key Lab Anim Breeding & Nutr, State Key Lab Livestock & Poultry Breeding, Guangzhou 510640, Guangdong, Peoples R China
关键词： chicken; gut microbiota; host genetics; body weight; F2 resource population
期刊名称：POULTRY SCIENCE （ 影响因子：3.352； 五年影响因子：3.679 ）
ISSN： 0032-5791
年卷期： 2019 年 98 卷 9 期
页码：
收录情况： SCI
摘要： Host-microbiota interactions describe a co-evolution and mutualistic symbiosis. Gut microbial communities are important for diverse host functions. However, in birds, the relationship between the composition of the intestinal microbiota and the genetic variation of the host is not clearly understood. To dissect these interactions, a Chinese yellow broiler line (genetically selected for a high growth rate) and Huiyang Beard chickens (low growth rate) were crossed, generating an F2 population. The population structures of the gut microbes in the phenotypically high and low 91-d body weight individuals of both sexes in the F2 population were studied. Interestingly, a non-metric multidimensional scaling analysis revealed that the microbiota of the high-weight and low-weight females was clearly separated into 2 clusters. A beta-diversity analysis showed that the locus rs16775833 within the doublesex and mab-3-related transcription factor (DMRT) gene cluster accounted for approximately 21% of the variation in the population structure of the gut microbiota. Furthermore, the 2 genetic loci rs15142709 and rs15142674 were significantly associated with specific species of Methanobacterium. These loci are located in the pleiomorphic adenoma gene 1 (PLAG1) and lck/yes-related novel tyrosine kinase (LYN) genes, which are involved in cell differentiation and growth. This finding suggests evidence for the influence of the host genetics on the composition of the gut microbiota in birds and the importance and utility of the host-microbe status to better understand its effect on the potential growth of birds.
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