使用新的1013基因Vitaceae诱集的家族基因分析支持北美Vitis的主要群体
Alicia Talavera1, Ze-Long Nie2, Zhi-Yao Ma3
1Department of Botany, National Museum of Natural History, MRC166, Smithsonian Institution, Washington, DC 20013-7012, USA; Departamento de Botánica y Fisiología Vegetal, Universidad de Málaga, 29071, Málaga, Spain.
Molecular phylogenetics and evolution
|June 24, 2023
概括
遗传学分析显示,欧亚维蒂斯嵌在北美维蒂斯中,突出了复杂的进化历史和广泛的杂交. 核DNA对于准确的Vitis物种界限和保护至关重要.
科学领域:
- 植物学 植物学
- 基因组学就是基因组学.
- 进化生物学 进化生物学
背景情况:
- 北美维蒂斯属 (葡萄) 的进化历史复杂,并未完全理解.
- 之前的研究曾因杂交等因素而面临解决家族遗传关系的挑战.
研究的目的:
- 为了研究北美Vitis物种之间的遗传学关系,使用一组大量的新设计的Vitaceae诱.
- 澄清Vitis cinerea综合体内的物种界限,并为野生葡萄多样性的保护工作提供信息.
主要方法:
- 用1013个新设计的Vitaceae基因诱进行基因组学分析.
- 细胞核异调分析.
- 使用四重奏 (SNaQ) 方法应用物种网络的分析.
主要成果:
- 包括Vitis vinifera在内的欧亚维蒂斯种群位于北美维蒂斯亚属Vitis.
- 北美Vitis亚属Vitis可以分为九个主要组.
- 强烈的细胞核不一致性被观察到,物种在塑性菌群中出现非单体,但在核菌群中出现单体.
- 在Vitis cinerea综合体内,四种不同的物种被认可:V. cinerea,V. baileyana,V. berlandieri和V. simpsonii.
- 证据支持北美葡萄种中广泛的杂交.
结论:
- 核基因数据对于精确的物种划界和重建维蒂斯的进化关系至关重要.
- 单独的塑基因组不足以解决北美葡萄树等高度杂交的植物群的进化历史.
- 建议在Vitis cinerea综合体中承认四种不同的物种,以更好地保护野生Vitis的多样性.
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