Quality selection and genetic diversity of Tunisian durum wheat varieties using SSR markers

  • Elyes Babay
  • Sameh Rahmani Mnasri National Gene Bank of Tunisia
  • Rim Mzid
  • M'barek ben Naceur
  • Mohsen Hanana
Keywords: durum wheat, genetic diversity, SDS-sedimentation, mixograph, protein content, yellow index

Abstract

Our study focuses on the molecular analysis of the genetic diversity within 15 Tunisian durum wheat varieties and the assessment of the efficiency of some available markers to select valuable genotypes for technological proprieties of semolina (i.e. parameters related to SDS-sedimentation, mixing time and breakdown resistance of mixograph, grain protein content and yellow colour). While several markers were validated, others were not informative within the genotypes used. A high level of polymorphic information content (PIC) was detected, with an average of 5.2 polymorph alleles per locus and 0.6 average. Old varieties have high protein content however; modern varieties display strong gluten strength. Our results thus open the opportunity to choose valuable parents on the base of pedigrees, technological properties and genetic distances; and lead us to select efficient markers for the Regional Indigenous Land Strategy (Rils) selection strategy.

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Author Biography

Sameh Rahmani Mnasri, National Gene Bank of Tunisia

National Gene Bank of Tunisia

Published
2019-05-07
How to Cite
Babay, E., Mnasri, S. R., Mzid, R., Naceur, M. ben, & Hanana, M. (2019). Quality selection and genetic diversity of Tunisian durum wheat varieties using SSR markers. Bioscience Journal, 35(4). https://doi.org/10.14393/BJ-v35n4a2019-42301
Section
Agricultural Sciences