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首页> 外文期刊>Genetic Resources and Crop Evolution >Genetic diversity and similarity of pear (Pyrus communisL.) cultivars in Central Europe revealed by SSR markers
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Genetic diversity and similarity of pear (Pyrus communisL.) cultivars in Central Europe revealed by SSR markers

机译：SSR标记揭示中欧梨（Pyrus Communisl。）品种的遗传多样性及相似性

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The Hungarian pear gene bank, located and founded in Keszthely in 1981, contains 210 pear cultivars including regional cultivars, cultivars of foreign origin and standard commercial cultivars. There are some cultivars with synonym names in the pear gene bank and in other pear growing areas within the Hungary. The aim of our work was to systematically analyse the genotypes of Hungarian cultivars in the pear gene bank and to set up a robust protocol for molecular identification and the interpretation of data. Eighty-eight cultivars were analysed employing eight SSR primers resulting in a total of 216 alleles. Seventy-seven cultivars were thoroughly analysed. Among the samples 29 were considered to be diploids and 59 triploids. A genetic diversity analysis was computed based on a Neighbour-Joining algorithm and combined with a PCA indicating close genetic relationship and an overall high amount of genetic diversity among the samples tested. Similarities and very close relations were verified in our studies between different pear cultivar variants: 'Korai szagos' A and B, which were planted with the same name in the gene bank. Six different 'Csaszar korte' and three 'Kocsog korte' cultivars were compared. It was important to establish how close their relationship was. Some cultivars originating from the same regions were compared. The 'Mezokovesdi 2 ' and '3 ' are in the same main branch, however their distance is larger, the number of common alleles is less than those of the two 'Erdelyi korte' cultivars.
机译：匈牙利梨基因银行位于1981年，含有210个梨品种，包括区域品种，外国品种和标准商业品种。梨基因银行中有一些品种，匈牙利内的其他梨生长区域是同义词。我们的作品的目的是系统地分析梨基因库中匈牙利品种的基因型，并建立一个稳健的分子识别方案和数据的解释。分析八十八种品种，采用八个SSR引物，总共216个等位基因。彻底分析了七十七种品种。在样品中，29被认为是二倍体和59三倍体。基于邻接算法计算遗传分集分析，并与表明测试的近似遗传关系的PCA以及样品中测试的整体大量遗传多样性。在我们的不同梨品种变体之间的研究中核实了相似之处和非常密切的关系：'korai szago'A和B，在基因库中种植了同名。比较了六种不同的“CSASZAR Korte”和三个'Kocsog Korte'品种。重要的是要建立他们的关系程度。比较来自同一区域的一些品种。 'Mezokovesdi 2'和'3'是在同一个主体分支中，但它们的距离更大，常见等位基因的数量小于两个'Erdelyi Korte'品种。

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