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Similarities of leafing and leaf fall date of ‘Pedro’ walnut variety with its progenies in breeding programs
Physiology and Molecular Biology of Plants ( IF 3.5 ) Pub Date : 2020-09-16 , DOI: 10.1007/s12298-020-00872-5
Akide Özcan 1 , Mehmet Sütyemez 2 , Akif Nar 2 , Esra Yıldırım 2 , Zahide Süslüoglu 3
Affiliation  

In this research, ‘Pedro’ walnut variety (maternal parent) was open pollinated. Offspring genotypes were compared with their maternal parent in terms of morphological and molecular features. Leafing and leaf fall dates were measured as two phenological traits. Genetic differences were identified by molecular fingerprinting using twelve Inter Simple Repetitive Sequence Polymorphism (ISSR) primers. In some progenies, leafing and leaf fall occurred later than the maternal parent (‘Pedro’). Progenies were grouped according to their similarities with the maternal parent regarding leafing date. Specifically, 14.44% of the progenies were ‘Very close’ to the parent, 16.66% were ‘Close’, 30.00% ‘Far’ and 38.89% ‘Very far’. Regarding the leaf fall date, 7.78% of the progenies were ‘Very close’ to the parent, 28.88% were ‘Close’, 36.66% ‘Far’ and 26.67% ‘Very far’. A total of 43 bands were obtained in molecular analyses. These bands were largely polymorphic (95.34%). The average number of the alleles was 3.90, while the polymorphism information content varied between 0.14 and 0.91 among the genotypes. Genetic distances were tested according to the UPGMA (Unweighted Pair Group Method with Arithmetic Average) and by The Structure Analysis. The UPGMA dendrogram divided the genotypes into two main clusters and the similarity coefficient of the genotypes varied between 0.61 and 0.99. This study revealed that ‘Pedro’ can be used as an excellent parental variety in hybridization programs which prioritize late-leafing in walnut breeding. Furthermore, ISSR primers can be safely used for fingerprinting walnuts in general.



中文翻译:

“佩德罗”核桃品种与其后代在育种计划中的生叶和落叶日期的相似性

在这项研究中,“佩德罗”核桃品种(母本)是开放授粉的。在形态和分子特征方面将后代基因型与其母本进行比较。生叶和落叶日期被测量为两个物候性状。遗传差异通过分子指纹识别使用十二个间简单重复序列多态性 (ISSR) 引物。在一些后代中,生叶和落叶发生的时间晚于母本('Pedro')。后代根据它们与母本在生叶日期方面的相似性进行分组。具体来说,14.44% 的后代与亲本“非常接近”,16.66% 是“接近”,30.00% 是“远”,38.89% 是“非常远”。关于落叶日期,7.78% 的后代与亲本“非常接近”,28.88% 为“接近”,36.66% 为“远”和 26。67% '很远'。在分子分析中总共获得了43条带。这些条带主要是多态的 (95.34%)。等位基因的平均数为3.90,而基因型之间的多态性信息含量在0.14和0.91之间变化。根据UPGMA(具有算术平均值的未加权配对组方法)和结构分析测试遗传距离。UPGMA 树状图将基因型分为两个主要簇,基因型的相似系数在 0.61 和 0.99 之间变化。这项研究表明,'Pedro' 可以用作杂交计划中的优良亲本品种,该计划优先考虑核桃育种中的晚叶。此外,ISSR 引物一般可安全地用于核桃的指纹识别。这些条带主要是多态的 (95.34%)。等位基因的平均数为3.90,而基因型之间的多态性信息含量在0.14和0.91之间变化。根据UPGMA(具有算术平均值的未加权配对组方法)和结构分析测试遗传距离。UPGMA 树状图将基因型分为两个主要簇,基因型的相似系数在 0.61 和 0.99 之间变化。这项研究表明,'Pedro' 可以用作杂交计划中的优良亲本品种,该计划优先考虑核桃育种中的晚叶。此外,ISSR 引物一般可安全地用于核桃的指纹识别。这些条带主要是多态的 (95.34%)。等位基因的平均数为3.90,而基因型之间的多态性信息含量在0.14和0.91之间变化。根据UPGMA(具有算术平均值的未加权配对组方法)和结构分析测试遗传距离。UPGMA 树状图将基因型分为两个主要簇,基因型的相似系数在 0.61 和 0.99 之间变化。这项研究表明,'Pedro' 可以用作杂交计划中的优良亲本品种,该计划优先考虑核桃育种中的晚叶。此外,ISSR 引物一般可安全地用于核桃的指纹识别。91个基因型。根据UPGMA(具有算术平均值的未加权配对组方法)和结构分析测试遗传距离。UPGMA 树状图将基因型分为两个主要簇,基因型的相似系数在 0.61 和 0.99 之间变化。这项研究表明,'Pedro' 可以用作杂交计划中的优良亲本品种,该计划优先考虑核桃育种中的晚叶。此外,ISSR 引物一般可安全地用于核桃的指纹识别。91个基因型。根据UPGMA(具有算术平均值的未加权配对组方法)和结构分析测试遗传距离。UPGMA 树状图将基因型分为两个主要簇,基因型的相似系数在 0.61 和 0.99 之间变化。这项研究表明,'Pedro' 可以用作杂交计划中的优良亲本品种,该计划优先考虑核桃育种中的晚叶。此外,ISSR 引物一般可安全地用于核桃的指纹识别。这项研究表明,'Pedro' 可以用作杂交计划中的优良亲本品种,该计划优先考虑核桃育种中的晚叶。此外,ISSR 引物一般可安全地用于核桃的指纹识别。这项研究表明,'Pedro' 可以用作杂交计划中的优良亲本品种,该计划优先考虑核桃育种中的晚叶。此外,ISSR 引物一般可安全地用于核桃的指纹识别。

更新日期:2020-09-16
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