羊GATA结合蛋白4基因的突变与生长特征之间的关系
Xin Li1, Zhiying Wang1, Qian Wang1
1College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China.
Gene
|December 21, 2023
概括
在GATA4基因的遗传变异影响山羊的生长特征. 通过PCR识别的特定GATA4基因突变与北白色喀什米尔山羊的心脏周长和部宽度的改善有关.
科学领域:
- 动物遗传学动物遗传学
- 分子生物学分子生物学
- 量化遗传学 量化遗传学
背景情况:
- 骨质生成是一个复杂的遗传过程,对骨发育至关重要.
- GATA结合蛋白4 (GATA4) 基因在骨的产生和分化中起着重要的作用.
- 尚不清楚北白色喀什米尔 (SBWC) 和贵州黑色 (GB) 羊的GATA4基因变异与生长特征之间的关联.
研究的目的:
- 研究GATA4基因内遗传突变对山羊生长特征的潜在影响.
- 确定与SBWC和GB山羊经济重要生长特征相关的特定GATA4基因多态.
主要方法:
- 在GATA4基因中选和检测两个插入/删除 (InDel) 多态 (8-bp-InDel和9-bp-InDel).
- 利用聚合酶连锁反应 (PCR) 和阿加凝电泳来进行基因定型.
- 总共分析了1161只山羊,包括980只SBWC和181只GB山羊.
主要成果:
- 对于8-bp-InDel和9-bp-InDel位点,已经确定了两个基因型 (ID和DD).
- 在SBWC山羊中,在8-bp-InDel和9-bp-InDel位点和心脏周长 (HG) 和部宽度 (HW) 之间发现了显著的关联.
- 具有8bp-InDel位点的DD基因型的个体显示出优异的生长,而9bp-InDel位点的DD基因型与劣质的生长有关. 综合基因型分析显示,与大炮周长 (CC),身高 (BH),HG和HW有显著的关联.
结论:
- GATA4基因及其已识别的InDel多态性与SBWC山羊的生长特征有显著关联.
- 这些发现为在山羊育种计划中应用分子标记器辅助选择 (MAS) 提供了基础.
- GATA4基因的遗传变异可以作为选择具有增强生长性能的山羊的有价值指标.
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