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Exploring the genetic basis of fatty liver development in geese

文献类型： 外文期刊

作者： Yang, Yunzhou 1 ; Wang, Huiying 1 ; Li, Guangquan 1 ; Liu, Yi 1 ; Wang, Cui 1 ; He, Daqian 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Inst Anim Husb & Vet Sci, Shanghai 201106, Peoples R China

2.Uppsala Univ, Dept Med Biochem & Microbiol, S-75123 Uppsala, Sweden

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2020 年 10 卷 1 期

页码：

收录情况： SCI

摘要： Although geese possess an adaptive physiological capacity for lipid storage, few candidate genes contributing to this ability are characterised. By comparing the genomes of individuals with extremely high and low fatty liver weights (FLW), candidate genes were identified, including ARAP2, GABRE, and IL6. Single-nucleotide polymorphisms in or near these genes were significantly (p<0.05) associated with carcass traits (FLW) and biochemical indexes (very-low-density lipoprotein and N-terminal procollagen III), suggesting contribution to trait variation. A common variant at the 5 '-end of LCORL explained similar to 18% and similar to 26% of the phenotypic variance in body weight with/without overfeeding and had significant effects on FLW (p<0.01). ZFF36L1, ARHGEF1 and IQCJ, involved in bile acid metabolism, blood pressure, and lipid concentration modulation, were also identified. The presence of highly divergent haplotypes within these genes suggested involvement in protection against negative effects from excessive lipids in the liver or circulatory system. Based on this and transcriptomic data, we concluded that geese hepatosteatosis results from severe imbalance between lipid accumulation and secretion, comparable to human non-alcohol fatty liver disease but involving other genes. Our results provided valuable insights into the genesis of geese fatty liver and detected potential target genes for treatment of lipid-related diseases.

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