狗中的四氧化酶的遗传多态性
1Division of Research, P.O. Box 94008, Fort Steilacoom, Washington 98494, USA.
概括
狗的红细胞四氧化酶表现出具有两个等位基因的遗传多态性,To(A) 和To(B). 与其他犬种相比,德国牧羊犬表现出不同的基因频率,表明了特定于品种的遗传变异.
科学领域:
- 生物化学 生物化学
- 遗传学 是一个遗传学.
- 兽医科学 兽医科学 兽医科学
背景情况:
- 氧化酶 (TO) 是一种在犬类红细胞中发现的酶.
- 在TO中存在的遗传多态性是由于两个等位基因:To(A) 和To(B).
研究的目的:
- 为了研究四氧化酶在犬类红细胞中的遗传多态性.
- 为了比较不同犬种的To(A) 和To(B) 的基因频率,重点是德国牧羊犬.
- 为了分析Canis latrans.trans中的四氧化酶异酶模式.
主要方法:
- 在犬类红细胞中对四氧化酶异酶进行电泳分析.
- 对各种狗品种的To(A) 和To(B) 基因的基因频率计算.
- 在Canis familiaris和Canis latrans.trans之间对TO异酶模式的比较分析.
主要成果:
- 大多数犬种中To(A) 和To(B) 的近似基因频率分别为0.94和0.06.
- 与其他品种相比,德国牧羊犬的基因频率与其他品种相比显著不同 (0.8为To(A),0.2为To(B)).
- 在Canis latrans的电泳性TO异酶模式与Canis familiaris的To (A) 模式非常相似.
结论:
- 狗的红细胞四氧化酶表现出一种遗传多态性,具有特定品种的变异,特别是在德国牧羊犬中.
- 遗传数据表明,Canis familiaris和Canis latrans之间关于四氧化酶的密切进化关系.
- 这项研究强调了在犬类研究中考虑品种特异性遗传标记的重要性.
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