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侵入性植物种群的起源和遗传变异性

Michaela Jungová^1,2, Vladimíra Müllerová Jurasová¹, Petra Hlásná Čepková²

¹Department of Ecology, Faculty of Environmental Sciences Czech University of Life Sciences Prague Prague Czech Republic.

Ecology and evolution

|June 7, 2023

概括

蒙克 (Rumex alpinus) 的基因分析显示,它起源于捷克共和国的阿尔卑斯山,而不是卡尔巴底山. 非本地人群由于局部适应和受限制的基因流动而表现出有限的遗传多样性.

科学领域:

植物学植物学
生态生态学生态生态学
遗传学是一个遗传学.

背景情况:

僧侣 (Rumex alpinus) 是一种多年生植物,原产于中欧和南欧山区.
它的分布受其作为蔬菜和药草的使用的影响.
Rumex alpinus被认为是捷克共和国山区的入侵物种,可能是从阿尔卑斯山引入的.

研究的目的:

为了确定Rumex alpinus在克尔科诺舍山脉 (捷克共和国) 引入的起源.
调查介绍是从阿尔卑斯山殖民者还是卡尔巴斯山脉.
分析本地和引入的Rumex alpinus种群的遗传结构.

主要方法:

从欧洲各个地区 (阿尔卑斯山,卡尔帕斯山,巴尔干山,比利尼斯山,捷克山脉) 收集了417个Rumex alpinus样本.
使用12个简单序列重复 (SSR) 标记器进行基因分析.
应用分子变异分析 (AMOVA) 用于评估遗传变异和差异化.

主要成果:

在种群中发现了很高的遗传变异 (60%).
种群之间显著的遗传差异化 (FST = 0.35) 表明基因流量受限.
与本地人相比,非本地人群的遗传变异性有限.
遗传分析支持阿尔卑斯山和捷克的基因型之间存在联系,卡尔巴蒂亚的基因型与巴尔干的基因型一致.

结论:

这项研究支持Rumex alpinus从阿尔卑斯山被引入克尔科诺舍山脉.
当地适应,减少基因交换和遗传漂移塑造了非本土人口的遗传多样性.
确定了不同的遗传集群,将捷克和阿尔卑斯山群体和卡尔巴特人群与巴尔干群体联系起来.

关键词:

阿尔卑斯山的码头遗传变异性遗传变异性侵入性植物入侵性植物微卫星微卫星是什么意思杂草杂草物种杂草物种

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