广泛分布的南美的遗传同质性令人震惊
Agustina Yañez1, Sylvia P Kinosian2, M Mónica Ponce3
1División Plantas Vasculares, Museo Argentino de Ciencias Naturales (MACN-CONICET), Av. Ángel Gallardo 740, Ciudad de Buenos Aires, C1405DJR, Argentina.
American journal of botany
|July 13, 2024
概括
南美 (Pteridium esculentum) 呈现出惊人的遗传同质性,只支持两个形态型. 东西地理模式解释了种群关系,与澳大利亚P. esculentum有明显的差异.
科学领域:
- 植物学 植物学
- 植物系统学 植物系统学
- 分子生态学分子生态学
背景情况:
- 皮 (Pteridium) 是一个全球侵略性的殖民者,对牲畜有毒.
- 南美菌种的分类学知之甚少,之前的研究缺乏大陆范围的数据.
- 虫 (Pteridium esculentum) 是南半球双胞胎物种,在南美洲有不同的形态型.
研究的目的:
- 为了在南美洲进行第一个遍布整个大陆的Pteridium esculentum的遗传学分析.
- 使用分子数据澄清南美P. esculentum形态类型之间的分类关系.
主要方法:
- 使用双消化限制部位相关的DNA测序 (ddRADSeq).
- 评估了P. esculentum亚种的遗传关系.
- 用遗传数据来分析形态型变异.
主要成果:
- 在采样的P. esculentum种群中观察到高程度的遗传同质性.
- 分子数据支持只识别了两个形态类型:P. e. arachnoideum和P. e. campestre.
- 虽然浅层和深层的家族遗传关系得到了很好的支持,但皇冠群体之间的关系显示出较少的信心.
结论:
- 确定了一个东西地理模式,解释了P. esculentum种群之间的关系.
- 在南美和澳大利亚P. esculentum之间发现了显著的遗传差异.
- 这些发现为未来研究P. esculentum的杂草潜力和对南美牲畜的影响提供了基础.
关键词:
这种植物属于Dennstaedtiaceae.周边帕姆帕斯河河弧 (Peripampasic Arc) 是一个围绕帕姆帕斯河河的弧.类水族 (Pteridium aquilinum var.) 是一种类动物. 这是一种状.虫 (Pteridium esculentum) 的一个亚种. 坎普斯特里坎普斯特里 坎普斯特里坎普斯特里虫 (Pteridium esculentum) 的一个亚种. 格里弗斯 (Gryphus) 是一种的植物.ddRADseqqq 的意思类的类 类的类遗传的一致性 遗传的一致性形态类型的形态类型.广泛分布的物种.更多相关视频
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