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Poa annua L. in Antarctic: searching for the source of introduction

机译：南极洲的Poa annua L .：寻找介绍的来源

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摘要

The level of polymorphism, genetic variability and relatedness of a population of Poa annua L. from South Shetlands Islands was studied and compared with results obtained for populations from two potential sources of introduction (Argentina-Ushuaia and Poland-Dzie-kanow Lesny) using the amplified fragment length polymorphism (AFLP) approach. Five primer pairs used for AFLP profiling amplified 226 scoreable DNA fragments that were used for Clustral and Factorial analyses. The level of molecular variability among all individuals from all the analysed populations reaches 30%. Clustral and Factorial analyses show that all populations formed clear-cut uniform groups according to their locations. However, population from King George Island show high variability. High genetic diversity may be related with escalated human activity at the area of Arctowski Station, favouring introductions of P. annua from many different sources and by many different vectors.
机译：研究了来自南设得兰群岛的美洲豹种群的多态性水平，遗传变异性和相关性，并与使用两种潜在引种来源（阿根廷-乌斯怀亚和波兰-德兹-卡诺·莱斯尼）的种群的结果进行了比较。扩增片段长度多态性（AFLP）方法。用于AFLP分析的五对引物扩增了226个可评分的DNA片段，用于Clustral和阶乘分析。来自所有分析人群的所有个体之间的分子变异性水平达到30％。宗族和阶乘分析表明，所有人口根据其位置形成了清晰统一的群体。但是，乔治国王岛的人口显示出高度的可变性。较高的遗传多样性可能与Arctowski站地区人类活动的升级有关，有利于从许多不同来源和通过许多不同媒介引入番石榴。

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