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Genome-wide association study of body weight and conformation traits in neonatal sheep.
Animal Genetics ( IF 2.4 ) Pub Date : 2020-01-20 , DOI: 10.1111/age.12904
L Tao 1 , X Y He 1 , L X Pan 2 , J W Wang 3 , S Q Gan 4 , M X Chu 1
Affiliation  

Sheep, an important source of meat, dairy products and wool, play an essential part in the global agricultural economy. Body weight and body conformation are key traits in the sheep industry; however, their underlying genetic mechanisms are poorly understood. In this study, a GWAS was implemented to identify promising genes possibly linked to birth weight (BW) and body conformation traits in neonatal sheep, using a high-throughput chip (630 K). After quality control, 277 individuals and 518 203 variants were analyzed using gemma software in a mixed linear model. A total of 48 genome-wide suggestive SNPs were obtained, of which four were associated with BW, four with withers height (WH), 11 with body length (BL) and 29 with chest girth (CG). In total, 39 genes associated with BW and body conformation traits were identified by aligning to the sheep genome (Ovis aries_v4.0), and most of them were involved in the cell cycle and body development. Promising candidate genes found included the following: FOS like 2 or AP-1 transcription factor subunit (FOSL2) for BW; potassium voltage-gated channel subfamily D member 2 (KCND2) for WH; transmembrane protein 117 (TMEM117), transforming growth factor beta induced (TGFBI), and leukocyte cell-derived chemotaxin 2 (LECT2) for BL; and trafficking kinesin protein 1 (TRAK1) and LOC101102529 for CG. These results provide cues for similar studies aiming at uncovering the genetic mechanisms underlying body development, and marker-assisted selection programs focusing on BW and body conformation traits in sheep.

中文翻译:

新生绵羊体重和构象特征的全基因组关联研究。

绵羊是肉,奶制品和羊毛的重要来源,在全球农业经济中起着至关重要的作用。体重和体型是绵羊产业的关键特征。然而,对其潜在的遗传机制了解甚少。在这项研究中,使用高通量芯片(630 K)实施了GWAS,以鉴定可能与新生绵羊的体重(BW)和身体构象特征相关的有前途的基因。在质量控制后,使用gemma软件在混合线性模型中分析了277个个体和518203个变体。共获得了48个全基因组提示性SNP,其中四个与BW相关,四个与枯萎高度(WH),11个与身长(BL)和29个与胸围(CG)。总共,通过与绵羊基因组(Ovis aries_v4.0)比对,鉴定了与体重和身体构象性状相关的39个基因,其中大多数与细胞周期和身体发育有关。发现的有希望的候选基因包括:BOS的FOS像2或AP-1转录因子亚基(FOSL2)。WH的钾电压门控通道亚家族D成员2(KCND2); 跨膜蛋白117(TMEM117),转化生长因子β诱导(TGFBI)和白细胞衍生的趋化因子2(LECT2)用于BL;和运输CG的驱动蛋白1(TRAK1)和LOC101102529。这些结果为旨在揭示人体发育潜在遗传机制的类似研究提供了线索,并着重于羊的体重和身体构象特征的标记辅助选择程序。他们大多数参与细胞周期和身体发育。发现的有希望的候选基因包括:BOS的FOS像2或AP-1转录因子亚基(FOSL2)。WH的钾电压门控通道亚家族D成员2(KCND2); 跨膜蛋白117(TMEM117),转化生长因子β诱导(TGFBI)和白细胞衍生的趋化因子2(LECT2)用于BL;和运输CG的驱动蛋白1(TRAK1)和LOC101102529。这些结果为旨在揭示人体发育潜在遗传机制的类似研究提供了线索,并着重于羊的体重和身体构象特征的标记辅助选择程序。他们大多数参与细胞周期和身体发育。发现的有希望的候选基因包括:BOS的FOS像2或AP-1转录因子亚基(FOSL2)。WH的钾电压门控通道亚家族D成员2(KCND2); 跨膜蛋白117(TMEM117),转化生长因子β诱导(TGFBI)和白细胞衍生的趋化因子2(LECT2)用于BL;和运输CG的驱动蛋白1(TRAK1)和LOC101102529。这些结果为旨在揭示人体发育潜在遗传机制的类似研究提供了线索,并着重于羊的体重和身体构象特征的标记辅助选择程序。WH的钾电压门控通道亚家族D成员2(KCND2); 跨膜蛋白117(TMEM117),转化生长因子β诱导(TGFBI)和白细胞衍生的趋化因子2(LECT2)用于BL;和运输CG的驱动蛋白1(TRAK1)和LOC101102529。这些结果为旨在揭示人体发育潜在遗传机制的类似研究提供了线索,并着重于羊的体重和身体构象特征的标记辅助选择程序。WH的钾电压门控通道亚家族D成员2(KCND2); 跨膜蛋白117(TMEM117),转化生长因子β诱导(TGFBI)和白细胞衍生的趋化因子2(LECT2)用于BL;和运输CG的驱动蛋白1(TRAK1)和LOC101102529。这些结果为旨在揭示人体发育潜在遗传机制的类似研究提供了线索,并着重于羊的体重和身体构象特征的标记辅助选择程序。
更新日期:2020-04-21
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