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Cereal Research Communications

, Volume 45, Issue 4, pp 574–586 | Cite as

Assessment of Genetic Diversity among Iranian Triticum Germplasm Using Agro-morphological Traits and Start Codon Targeted (SCoT) Markers

  • A Pour-AboughadarehEmail author
  • J. Ahmadi
  • A. A. Mehrabi
  • A. Etminan
  • M. Moghaddam
Genetics

Abstract

The knowledge about genetic diversity in the wild relatives of wheat provides useful information for breeding programs and gene pool management. In the present study, an assessment of agro-morphological diversity and molecular variability among 70 accessions of Triticum, belonging to T. boeoticum, T. urartu, T. durum and T. aestivum species, collected from different regions of Iran was made. According to phenotypic analysis, all traits except peduncle length, stem diameter and the number of seeds per spike indicated a high level of diversity among studied accessions. Also, principal component analysis identified six components that explained 87.53% of the total variation in agro-morphological traits. In molecular analysis, 15 start codon targeted (SCoT) polymorphism primers produced 166 bands, out of which, 162 (97.59%) were polymorphic. Analysis of molecular variance (AMOVA) indicated the 63% of the variation resided among populations. The maximum value of polymorphism information content (PIC), the observed (Na) and effective (Ne) number of alleles, Nie’s gene diversity (He) and Shannon’s information index (I) was detected for T. boeoticum than the other species. The SCoT-based tree revealed three different groups corresponding to the genomic constitution in Triticum germplasm, which was in part confirmed by STRUCTURE and principal coordinate (PCoA) analyses. Our results indicated a remarkable level of genetic diversity among studied Iranian Triticum species, especially T. boeoticum, which can be of interest for future breeding and other analyses associated with future studies of the wild relatives of wheat. More importantly, our results revealed that SCoT markers could be used to accurate evaluate genetic diversity and phylogenetic relationships among different Triticum species.

Keywords

Triticum genetic diversity SCoT structure analysis 

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Assessment of Genetic Diversity among Iranian Triticum Germplasm using Agro-morphological Traits and Start Codon Targeted (SCoT) Markers

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© Akadémiai Kiadó, Budapest 2017

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • A Pour-Aboughadareh
    • 1
    Email author
  • J. Ahmadi
    • 1
  • A. A. Mehrabi
    • 2
  • A. Etminan
    • 3
  • M. Moghaddam
    • 4
  1. 1.Department of Crop Production and BreedingImam Khomeini International UniversityQazvinIran
  2. 2.Department of Agronomy and Plant breedingUniversity of IlamIlamIran
  3. 3.Department of Plant breeding, Kermanshah BranchIslamic Azad UniversityKermashahIran
  4. 4.Department of Plant Breeding and BiotechnologyUniversity of TabrizTabrizIran

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