基于分子和形态学数据的维蒂斯属内的物种关系
Jean-Pierre Péros1, Amandine Launay1, André Peyrière1
1UMR AGAP Institut, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France.
PloS one
|July 31, 2023
概括
这项研究通过DNA分析澄清了葡萄 (Vitis L.) 的物种关系. 它确定了不同的遗传群体,并突出了北美葡萄树的显著分歧,这对于培育改进品种至关重要.
科学领域:
- 植物学和植物科学 植物学和植物科学
- 遗传学和基因组学 在
- 农业科学 农业科学
背景情况:
- 葡萄品种Vitis L.对农业至关重要,包括种植的葡萄酒和相关物种,这些物种对改善作物有价值.
- 了解维蒂斯内部的物种关系对于利用遗传资源和应对葡萄藤育种方面的挑战至关重要.
研究的目的:
- 解决维蒂斯属内物种关系的模两可.
- 在广泛的Vitis加入中分析遗传多样性和家族遗传结构.
- 为了研究遗传系谱和形态特征之间的相关性.
主要方法:
- 在12个位置上进行DNA测序以识别单核酸多态 (SNPs).
- 使用高密度SNP数组对90个Vitis加入的基因型定型.
- 遗传学分析,异性测量,哈普洛型重建和质体标记分析.
- 对具有形态特征的遗传数据进行比较分析.
主要成果:
- 遗传学分析揭示了五个不同的分类:三个在北美,一个在东亚,一个在欧洲 (葡萄藤).
- 通过使用异合性,哈普洛型和叶绿体数据识别了类内和类间的杂交物种,而它们的排除改善了物种关系评估.
- 在遗传分化和几个形态特征之间发现了显著的相关性.
- 北美分类,包括像Vitis riparia和Vitis rupestris这样的物种,与其他分类表现出了相当大的遗传和形态差异.
结论:
- 这项研究为Vitis属提供了一个强大的遗传学框架,澄清了物种界限和进化历史.
- 北美Vitis物种中发现的遗传分歧为寻求新特征的育种计划提供了宝贵的见解.
- 了解杂交影响对于准确的维蒂斯基因组学和生殖质利用至关重要.
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