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Article

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

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Banque Nationale de Gènes, Boulevard du Leader Yasser Arafat Z. I Charguia 1, Tunis 1080, Tunisia
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International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat 10112, Morocco
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Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT), El Batán, Texcoco 56237, Mexico
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Departamento de Genética, Escuela Técnica Superior de Ingeniería Agronómica y de Montes, Edificio Greogor Mendel, Campus de Rabanales, Universidad de Córdoba, CeiA3, 14071 Córdoba, Spain
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Authors to whom correspondence should be addressed.
Academic Editor: Alessandro Tondelli
Agronomy 2021, 11(4), 634; https://doi.org/10.3390/agronomy11040634
Received: 27 January 2021 / Revised: 9 March 2021 / Accepted: 11 March 2021 / Published: 26 March 2021
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. View Full-Text
Keywords: durum wheat; Tunisian landraces; genetic diversity; population structure; phenotypic characterization durum wheat; Tunisian landraces; genetic diversity; population structure; phenotypic characterization
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MDPI and ACS Style

Robbana, C.; Kehel, Z.; Ammar, K.; Guzmán, C.; Naceur, M.B.; Amri, A. Unlocking the Patterns of the Tunisian Durum Wheat Landraces Genetic Structure Based on Phenotypic Characterization in Relation to Farmer’s Vernacular Name. Agronomy 2021, 11, 634. https://doi.org/10.3390/agronomy11040634

AMA Style

Robbana C, Kehel Z, Ammar K, Guzmán C, Naceur MB, Amri A. Unlocking the Patterns of the Tunisian Durum Wheat Landraces Genetic Structure Based on Phenotypic Characterization in Relation to Farmer’s Vernacular Name. Agronomy. 2021; 11(4):634. https://doi.org/10.3390/agronomy11040634

Chicago/Turabian Style

Robbana, Cyrine, Zakaria Kehel, Karim Ammar, Carlos Guzmán, M’Barek Ben Naceur, and Ahmed Amri. 2021. "Unlocking the Patterns of the Tunisian Durum Wheat Landraces Genetic Structure Based on Phenotypic Characterization in Relation to Farmer’s Vernacular Name" Agronomy 11, no. 4: 634. https://doi.org/10.3390/agronomy11040634

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