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首页> 外文期刊>Critical Reviews in Plant Sciences >Genetic diversity in Algerian maize (Zea mays L) landraces using SSR markers
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Genetic diversity in Algerian maize (Zea mays L) landraces using SSR markers

机译：使用SSR标记的阿尔及利亚玉米（Zea Mays L）Lateraces的遗传多样性

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In the Sahara, maize (Zea mays L) has been adapted to extreme environmental conditions during the last five centuries; therefore, this germplasm has a potential value as source of tolerance to stress. No previous report of the genetic diversity of Saharan maize has been published so far. The objective of this study was to determine the genetic diversity of a collection of Saharan maize. Fifteen accessions representing the geographic diversity of Algeria were characterized with 18 SSR. Most loci (93%) were polymorphic; the total amount of alleles was 87 and the average of alleles per locus was 5.8. The total genetic diversity (He) was 0.57, being 69% intra-accessions and 31% inter-accession. Eight of the alleles were accession-specific and belonged to six populations. Genetic distance among the 15 accessions resulted in the definition of three main clusters related to the geographic origin. Maize germplasm from the Algerian Sahara can be classified at least in three groups and the most variable accessions are in the southern oasis. Some accessions were highly variable and can be sources of favorable alleles for breeding for tolerance to extreme stress conditions.
机译：在撒哈拉州，玉米（Zea Mays L）在过去五世纪期间已经适应极端的环境条件;因此，这种种质具有作为对压力耐受性的潜在价值。到目前为止，没有先前关于撒哈拉玉米遗传多样性的报告已发布。本研究的目的是确定一系列撒哈拉玉米的遗传多样性。表示阿尔及利亚地理分集的十五种载体的特点是18 SSR。大多数基因座（93％）是多态的;等位基因总量为87，每个基因座的等位基因的平均值为5.8。总遗传多样性（HE）为0.57，入住内外69％，加入31％。八个等位基因是针对特定的，属于六个人群。 15种附加的遗传距离导致了与地理起源相关的三个主要集群的定义。来自阿尔及利亚撒哈拉州的玉米种质可以至少分为三个群体，并且最具可变的加入在南部绿洲。一些载体是高度变化的，可以是有利等位基因来源，用于培育极端压力条件的耐受性。

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