基于mtDNA (D-loop和cytb) 的普通鱼黑菌株种群的遗传多样性
Sahr Lamin Sumana1, Peipei Wang2, Chengfeng Zhang1
1Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, PR China.
Heliyon
|May 22, 2024
概括
对常见黑鱼 (Cyprinus carpio var. 黑鱼) 的遗传分析 黑 (Baisenensis) 发现了黑菌株的显著种群差异和低遗传多样性. 这凸显了对这种具有文化意义的鱼类进行保护的必要性.
科学领域:
- 水产养殖和水生遗传学
- 鱼类学 鱼类学 鱼类学
- 保护生物学 保护生物学
背景情况:
- 黑鱼 (Cyprinus carpio var. 黑鱼) 是一种常见的黑鱼. (Baisenensis) 是一个在中国广西省文化意义上的鱼.
- 了解其遗传多样性对于保护生殖质资源和可持续水产养殖至关重要.
研究的目的:
- 用线粒体DNA (mtDNA) 序列分析常见黑鱼菌株的遗传多样性.
- 为了比较黑鱼菌株的遗传构成与其他四种当地常见鱼种群.
主要方法:
- 线粒体DNA (mtDNA) 序列,特别是位移循环 (D-loop) 和细胞染色体b (Cytb),使用单核酸多态 (SNP) 进行了分析.
- 评估了来自五个种群的136只成年常见鱼的遗传多样性和差异化:黑鱼 (HJ),建 (F),黑龙江 (H),浦 (S) 和赛江 (SJ).
主要成果:
- 黑龙江 (H) 和赛江 (SJ) 种群分别表现出最高的单元型和核酸多样性.
- 常见的黑鱼菌株 (HJ) 呈现出最低的单元型多样性,私人单元型占据所有种群的主导地位.
- 在种群中观察到显著的遗传差异化 (P<0.001),在Saijiang (SJ) 和Heilongjiang (H) 之间观察到Cytb的高Fst值,在D-loop中观察到黑 (HJ) 和Songpu (S) 之间的黑菌株.
结论:
- 常见的黑鱼株具有有限的遗传多样性,需要有针对性的保护策略.
- 遗传学分析表明这五种种群之间存在密切的关系,这表明它们有共同的祖先或最近的基因流动.
- 这些发现为保护,繁殖和管理常见鱼资源提供了关键的见解.
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