Cereal Research Communications
Volume/Issue:
Volume 47: Issue 4
Study of the Molecular Biodiversity of the Saharan Bread Wheat in Algeria
Authors: A. Bellatreche 1 , S.R. Mnasri 2 , M. Ben Naceur 2 , and S.S.B. Gaouar 1
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  • 1 Abou-Bekr-Belkaïd University, 22, Rue Abi Ayad Abdelkrim, Fg Pasteur B.P 119, Tlemcen 13000, Algeria
  • 2 National Gene Bank of Tunisia, Street Yasser Arafet, 1080 Charguia 1. Tunis, Tunisia
DOI:
https://doi.org/10.1556/0806.47.2019.39
Page Count:
724–739
Publication Date:
01 Dec 2019
Online Publication Date:
Dec 2019
Article Category:
Research Article
Restricted access

Climate change has significantly affected wheat yield. Many studies have suggested that rising temperatures could be harmful to cereals around the world. Thus, the valorization of the desert wheat resources is essential to improve the resistance of this species to climate change. In this context, twenty-eight different local Saharan bread wheat (Triticumaestivum L.) genotypes were described using ten preselected SSR markers. The tested SSRs produced a total number of 20 alleles with an allelic size ranged from 100 pb (WMC261) to 400 pb (WMC257). The allele frequency varied from 0.1 for the allele 230 pb (WMC156) to 1 for the alleles 187 pb, 310 pb (WMC97, WMC168). Likewise, the PIC values ranged from 0 (WMC97, WMC168) to 0.5 (WMC327, WMC233), with an average of 0.34 and the observed heterozygosity (Ho) from 0 to 0.88, with an average of 0.55. The molecular variance (AMOVA) revealed the highest level of intra-population differentiation of local Saharan bread wheat (97%) and the statistical geometric distributions based on PCoA, NJ method and structure analysis confirmed the existence of four major classes of bread wheat. These results substantiate the previous researches based on the morphological markers and contribute for the first time in Algeria to create the genetic fingerprint of the Saharan bread wheat resources and to valorize their drought resistance potential through breeding programs.

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Cover Cereal Research Communications
Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company
Print ISSN:
0133-3720
Online ISSN:
1788-9170
Keywords:
Algerian desert; biodiversity; climate change; SSR; Triticum aestivum L.

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