title: Differential fecal microbiota are retained in broiler chicken lines divergently selected for fatness traits.
abstract: Our study combined 16S rRNA-pyrosequencing and whole genome sequencing to analyze the fecal metagenomes of the divergently selected lean (LL) and fat (FL) line chickens. Significant structural differences existed in both the phylogenic and functional metagenomes between the two chicken lines. At phylum level, the FL group had significantly less Bacteroidetes. At genus level, fourteen genera of different relative abundance were identified, with some known short-chain fatty acid producers (including Subdoligranulum, Butyricicoccus, Eubacterium, Bacteroides, Blautia) and a potentially pathogenic genus (Enterococcus). Redundancy analysis identified 190 key responsive operational taxonomic units (OTUs) that accounted for the structural differences between the phylogenic metagenome of the two groups. Four Cluster of Orthologous Group (COG) categories (Amino acid transport and metabolism, E; Nucleotide transport and metabolism, F; Coenzyme transport and metabolism, H; and Lipid transport and metabolism, I) were overrepresented in LL samples. Fifteen differential metabolic pathways (Biosynthesis of amino acids, Pyruvate metabolism, Nitrotoluene degradation, Lipopolysaccharide biosynthesis, Peptidoglycan biosynthesis, Pantothenate and CoA biosynthesis, Glycosaminoglycan degradation, Thiamine metabolism, Phosphotransferase system, Two-component system, Bacterial secretion system, Flagellar assembly, Bacterial chemotaxis, Ribosome, Sulfur relay system) were identified. Our data highlighted interesting variations between the gut metagenomes of these two chicken lines.
authors.affiliation: Key Laboratory of Dairy Biotechnology and Engineering Building, Inner Mongolia Agricultural University, Hohhot, 010018, China.
authors.forename: Qiangchuan
authors.initials: Q
authors.lastname: Hou
authors.affiliation: Key Laboratory of Dairy Biotechnology and Engineering Building, Inner Mongolia Agricultural University, Hohhot, 010018, China.
authors.forename: Lai-Yu
authors.initials: LY
authors.lastname: Kwok
authors.affiliation: Key Laboratory of Dairy Biotechnology and Engineering Building, Inner Mongolia Agricultural University, Hohhot, 010018, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zheng
authors.affiliation: Key Laboratory of Dairy Biotechnology and Engineering Building, Inner Mongolia Agricultural University, Hohhot, 010018, China.
authors.forename: Lifeng
authors.initials: L
authors.lastname: Wang
authors.affiliation: Key Laboratory of Dairy Biotechnology and Engineering Building, Inner Mongolia Agricultural University, Hohhot, 010018, China.
authors.forename: Zhuang
authors.initials: Z
authors.lastname: Guo
authors.affiliation: Key Laboratory of Dairy Biotechnology and Engineering Building, Inner Mongolia Agricultural University, Hohhot, 010018, China.
authors.forename: Jiachao
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Dairy Biotechnology and Engineering Building, Inner Mongolia Agricultural University, Hohhot, 010018, China.
authors.forename: Weiqiang
authors.initials: W
authors.lastname: Huang
authors.affiliation: Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture, Northeast Agricultural University, Harbin 150030, P.R. China.
authors.forename: Yuxiang
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture, Northeast Agricultural University, Harbin 150030, P.R. China.
authors.forename: Li
authors.initials: L
authors.lastname: Leng
authors.affiliation: Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture, Northeast Agricultural University, Harbin 150030, P.R. China.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.affiliation: Key Laboratory of Dairy Biotechnology and Engineering Building, Inner Mongolia Agricultural University, Hohhot, 010018, China.
authors.forename: Heping
authors.initials: H
authors.lastname: Zhang
mesh_terms: D000818:Animals; D001419:Bacteria / Q000145:classification / Q000235:genetics* / Q000378:metabolism; D002645:Chickens / Q000235:genetics / Q000382:microbiology; D005243:Feces / Q000382:microbiology*; D041981:Gastrointestinal Tract / Q000382:microbiology; D050155:Lipogenesis / Q000235:genetics*; D053858:Metabolic Networks and Pathways / Q000235:genetics; D054892:Metagenome / Q000235:genetics*; D064307:Microbiota / Q000235:genetics; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D000073336:Whole Genome Sequencing
chemical_list: D012336:RNA, Ribosomal, 16S