与猎的进化相关的主要遗传位置以ISPD为中心
Andres Bendesky1, Joseph Brew1, Kerel X Francis1
1Department of Ecology, Evolution and Environmental Biology and Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY, 10027-2325, USA.
G3 (Bethesda, Md.)
|November 22, 2023
概括
基因组分析显示,猎具有明显的遗传相似性,可能来自一个共同的起源,将它们与食物来源区分开来. 一种特定的基因变异 (ISPD) 与猎的战斗表现有很强的相关性.
科学领域:
- 基因组学就是基因组学.
- 动物遗传学动物遗传学
- 农业科学 农业科学
背景情况:
- 已经被化了4000多年前,最初是为了战斗 (游戏),后来是为了食物.
- 不同种类的之间的遗传关系以及和非之间的遗传关系尚未得到充分理解.
研究的目的:
- 为了研究地理上多样化的野和非野之间的遗传关系.
- 为了确定与猎的战斗表现相关的遗传标记.
主要方法:
- 44只猎和62只非猎的基因组测序.
- 将这些序列与已发表的基因组集成,创建了307个基因组的数据集.
- 对整个种群的遗传变异和选择信号的分析.
主要成果:
- 游戏虽然不是一个同质的群体,但它们表现出共同的遗传特征,使它们与非游戏区别开来,这表明它们有共同的祖先起源.
- 在野中高频率 (89%) 发现含有基因 (ISPD) 内子的异oprenoid合成酶域的特定变异,而在非野中低频率 (4%) 发现.
- 在野中,ISPD位点显示出最强的选择信号,这表明它对战斗特征的重要性.
结论:
- 基因组数据为农业遗传学提供了宝贵的资源,并澄清了猎的独特遗传特征.
- 全球猎的共同起源被认为是,像ISPD变种这样的遗传因素将它们与其他目的养的区分开来.
- 选择性育种可能会降低ISPD变异的频率,在农场环境中,侵略性是不可取的.
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