Genetic Resources and Crop Evolution

, Volume 51, Issue 8, pp 863–869

Genetic variation of the durum wheat landrace Haurani from different agro-ecological regions

  • Mario A. Pagnotta
  • Alfredo Impiglia
  • Oronzo A. Tanzarella
  • Miloudi M. Nachit
  • Enrico Porceddu
Article

DOI: 10.1007/s10722-005-0775-1

Cite this article as:
Pagnotta, M.A., Impiglia, A., Tanzarella, O.A. et al. Genet Resour Crop Evol (2005) 51: 863. doi:10.1007/s10722-005-0775-1

Abstract

The durum wheat landrace Haurani (Triticum durum Desf.) is grown under contrasting climatic regions of Syria from Deir Ezzor, in the North-East (230 m altitude, 150 mm mean annual rainfall), to Qunaytra, in the South-West (1060 m altitude, 825 mm mean annual rainfall). In order to assess the genetic variation between and within Haurani populations, samples from eight provinces of Syria (Dara’a, Damascus, Qunaytra, Deir Ezzor, Hassakeh, Aleppo, Homs and Hama) were analysed by RFLPs and seed storage proteins of glutenin subunits as markers. The analyses showed the presence of genetic polymorphisms in all populations with the highest values in those from Homs and Hassakeh. Moreover, the results point out differences in genetic distances between populations; some populations were further apart, such as Damascus and Aleppo, whereas others were closer to each other, for instance Homs and Hama. Cluster analysis identified two distinct groups of populations, characterized by geographical proximity, with similar rainfall and altitude. It is suggested that the similarity of landraces at locations close to each other might be the result of more frequent seed exchanges between farmers or of gene flow due to 5% estimated outcross rate of Haurani.

Key words

Genetic resources Glutenin Landrace RFLPs Triticum durum Variability 

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Mario A. Pagnotta
    • 1
  • Alfredo Impiglia
    • 3
  • Oronzo A. Tanzarella
    • 1
  • Miloudi M. Nachit
    • 2
  • Enrico Porceddu
    • 1
  1. 1.Department of Agro Biology and Agro ChemistryUniversity of TusciaViterboItaly
  2. 2.Durum Breeding ProgramICARDA, CYMMYT/ICARDAAleppoSyria
  3. 3.Food and Agriculture Organization of the United NationsRomeItaly