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Morphological variability and genetic diversity of wheat genotypes grown on saline soil and identification of new promising molecular markers associated with salinity tolerance
Journal of Plant Interactions ( IF 3.2 ) Pub Date : 2019-10-05 , DOI: 10.1080/17429145.2019.1672815
Adel Ahmed Elshafei 1 , Samy Abd El-Aziz Afiah 2 , Abdullah Abdulaziz Al-Doss 3 , Eid Ibrahim Ibrahim 3
Affiliation  

Eleven bread wheat genotypes grown at Siwa Oasis and Ashmon, Menofeya Governorate, during the winter season of 2016/2017 were examined for their agronomic traits under salinity stress. Owing to the differences in the salinity levels at the two locations, significant differences were noticed among the tested genotypes for all traits. Lines L2 and L4 showed the highest grain yields, whereas L3 showed the lowest. The most suitable parameters for screening stress-tolerance were tolerance indices and high-yielding potentiality. In this investigation, 33 SSR (Simple Sequence Repeat) primers led to the determination of one to three alleles per primer, with an average of 1.36. The use of 31 EST (Expressed Sequence Tag)-SSR markers led to the determination of 38 polymorphic alleles, ranging from one to five, with a mean of 1.23 per locus. A cluster analysis using the SSR and EST-SSR information divided the 11 wheat genotypes into three groups.



中文翻译:

盐渍土壤上小麦基因型的形态变异和遗传多样性及耐盐性相关的新分子标记的鉴定

研究了2016/2017年冬季在锡诺绿洲和梅诺费亚省阿什蒙生长的11种面包小麦基因型在盐分胁迫下的农艺性状。由于两个位置的盐度水平不同,所有性状的受试基因型之间都存在显着差异。线L2和L4显示最高的籽粒产量,而L3显示最低。筛选耐压性最合适的参数是耐性指数和高产潜力。在这项研究中,使用33个SSR(简单序列重复)引物确定了每个引物1至3个等位基因,平均为1.36。使用31个EST(表达序列标签)-SSR标记可确定38个多态等位基因,范围从1到5,平均每个基因座为1.23。

更新日期:2019-10-05
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