Assessment of glutenin and phenotypic diversity of Syrian durum wheat landraces in relation to their geographical origin

Euphytica ◽  
1991 ◽  
Vol 55 (3) ◽  
pp. 209-215 ◽  
Author(s):  
Th. J. L. van Hintum ◽  
A. Elings
Keyword(s):  
Durum Wheat ◽  
Geographical Origin ◽  
Phenotypic Diversity ◽  
Wheat Landraces ◽  
Durum Wheat Landraces

scholarly journals Phenotypic diversity of Tunisian durum wheat landraces

2010 ◽  
Vol 18 (1) ◽  
Author(s):  
A Sourour ◽  
K Chahine ◽  
T Youssef ◽  
SA Olfa ◽  
SA Hajer
Keyword(s):  
Durum Wheat ◽  
Phenotypic Diversity ◽  
Wheat Landraces ◽  
Durum Wheat Landraces

scholarly journals Life story of Tunisian durum wheat landraces revealed by their genetic and phenotypic diversity

2020 ◽  
Author(s):  
Safa Ben Krima ◽  
Amine Slim ◽  
Sandrine Gélisse ◽  
Hajer Kouki ◽  
Isabelle Nadaud ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Life Story ◽  
Triticum Turgidum ◽  
Phenotypic Diversity ◽  
Quantitative Resistance ◽  
Farming Systems ◽  
Septoria Tritici ◽  
Genetic Groups ◽  
Wheat Landraces ◽  
Durum Wheat Landraces

AbstractDurum wheat (Triticum turgidum L. subsp. durum) landraces represent a prominent genetic resource for Mediterranean farming systems and breeding programs. Fourteen landraces sampled in Tunisia were genotyped with 9 microsatellite markers and characterized with 15 morphological descriptors, including resistance to the fungal disease Septoria tritici blotch (STB). The genetic diversity, nearly was as important within landraces populations (45%) than between populations (54%). It was structured in seven genetic groups and was only partly explained by the variety name or the locality of origin. Populations were also greatly diversified phenotypically (Shannon-Weaver H’=0.54) with traits related to spike and awn colours being the most diversified. Resistance to STB was either qualitative in two populations or with varying degrees of quantitative resistance in the others. A Pst-Fst comparison indicate a local adaptation of the populations. Overall, the genetic structure of Tunisian durum wheat landraces revealed a complex selection trajectory and seed exchanges between farmers.

scholarly journals Unlocking the Patterns of the Tunisian Durum Wheat Landraces Genetic Structure Based on Phenotypic Characterization in Relation to Farmer’s Vernacular Name

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 634
Author(s):  
Cyrine Robbana ◽  
Zakaria Kehel ◽  
Karim Ammar ◽  
Carlos Guzmán ◽  
M’Barek Ben Naceur ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Durum Wheat ◽  
Smallholder Farmers ◽  
Phenotypic Variability ◽  
Phenotypic Characterization ◽  
Ecological Niches ◽  
Dry Conditions ◽  
New Gene ◽  
Wheat Landraces ◽  
Durum Wheat Landraces

During the 1970s, Tunisian durum wheat landraces were replaced progressively by modern cultivars. These landraces are nowadays maintained by smallholder farmers in some ecological niches and are threatened gradually by extinction resulting in the narrowing of the genetic diversity. This study aims to investigate patterns of phenotypic variability using twelve quantitative traits in a panel of 189 durum wheat landraces and seven checks, based on farmer’s population name attribution and genetic structure. Our results showed high phenotypic variability among and within landraces and checks for ten out of twelve studied traits. The principal components analysis showed similar grouping using farmers name attribution and genetic structure using K = 6. These results confirmed the identification of a new gene pool in the oases of Tunisia, represented by the sub-population Jenah Zarzoura and the robustness and high relationships between phenotypic and genome-wide genetic structure using DArTseq method. These findings will enhance the conservation efforts of these landraces and their use in breeding efforts at national and international levels to adapt to dry conditions.

Phenolic Fingerprint of Sicilian Modern Cultivars and Durum Wheat Landraces: A Tool to Assess Biodiversity

2017 ◽  
pp. CCHEM-06-17-012 ◽  
Author(s):  
Marisol Lo Bianco ◽  
Laura Siracusa ◽  
Sandro Dattilo ◽  
Gianfranco Venora ◽  
Giuseppe Ruberto
Keyword(s):  
Durum Wheat ◽  
Wheat Landraces ◽  
Durum Wheat Landraces

Screening of durum wheat landraces (Triticum turgidum subsp. durum) for the malting suitability

2018 ◽  
Vol 83 ◽  
pp. 101-109 ◽  
Author(s):  
Vincenzo Alfeo ◽  
Barbara Jaskula-Goiris ◽  
Ginfranco Venora ◽  
Emanuele Schimmenti ◽  
Guido Aerts ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Triticum Turgidum ◽  
Wheat Landraces ◽  
Durum Wheat Landraces
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