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Dergiler / Turkish Journal Of Field Crops / 2026 / Volume: 31 Issue: 1

Revealing Genetic Diversity and Drought Tolerance in Durum Wheat through Agro-Physiological and Molecular Approaches

Ferhat Kızılgeçi(Mardin Artuklu University, Faculty of Agricultural Sciences and Technologies, Department of Field Crops, Mardin 47000, Türkiye)0000-0002-7884-5463
Aras Türkoğlu(Necmettin Erbakan University, Faculty of Agriculture Department of Field Crops, 42310, Konya, Türkiye)0000-0003-2611-8034
Kamil Haliloğlu(Gazi University)0000-0002-4014-491X
Seval Eliş(Mardin Artuklu University, Faculty of Agricultural Sciences and Technologies, Department of Field Crops, Mardin 47000, Türkiye)0000-0001-6708-5238
Büşra Polat(ATATÜRK ÜNİVERSİTESİ, ZİRAAT FAKÜLTESİ, TARLA BİTKİLERİ BÖLÜMÜ, TARLA BİTKİLERİ ANABİLİM DALI)0009-0009-4617-3533
Gaye Akçelik(ATATURK UNIVERSITY, ERZURUM FACULTY OF AGRICULTURE, AGRICULTURE PR.)0009-0004-2138-3028
Mehmet Yıldırım(DİCLE ÜNİVERSİTESİ, ZİRAAT FAKÜLTESİ, TARLA BİTKİLERİ BÖLÜMÜ, TARLA BİTKİLERİ ANABİLİM DALI)0000-0003-2421-4399
Fatih Demirel(Department of Department of Agricultural Biotechnology, Faculty of Agriculture, Iğdır University, Iğdır, Türkiye)0000-0002-6846-8422
Jan Bocianowski(Department of Mathematical and Statistical Methods, Poznań University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland)0000-0002-0102-0084
Sayfa
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Yayın Tarihi
2026-04-17
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

In conclusion, iPBS markers exhibited higher discriminatory power than SCoT for assessing genetic diversity, while specific indices (MP, GMP, and STI) proved most effective for identifying drought-tolerant durum wheat genotypes, with NZFM-41 and Maestrale emerging as promising genetic resources for breeding programs aimed at enhancing climate resilience.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Under changing climate conditions, evaluating both genetic and environmental factors is essential for crop improvement.
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Temel Bulgular & Veri:Limitations of conventional breeding have increased the use of molecular markers to obtain precise genotypic information and improve selection efficiency.
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Sonuç & Katkı:In conclusion, iPBS markers exhibited higher discriminatory power than SCoT for assessing genetic diversity, while specific indices (MP, GMP, and STI) proved most effective for identifying drought-tolerant durum wheat genotypes, with NZFM-41 and Maestrale emerging as promising genetic resources for breeding programs aimed at enhancing climate resilience.
🔬Tür:Research Article
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Climate Change · Drought Tolerance · Durum Wheat Genotypes

Abstract

Under changing climate conditions, evaluating both genetic and environmental factors is essential for crop improvement. Limitations of conventional breeding have increased the use of molecular markers to obtain precise genotypic information and improve selection efficiency. This study evaluated drought tolerance in 15 durum wheat genotypes across two cropping seasons under rainfed and irrigated conditions. A randomized complete block design with four replications was used to assess agro-physiological traits, quality parameters, drought tolerance indices, and molecular diversity using iPBS and SCoT markers. Significant genotypic variation was observed for grain yield, 1000-kernel weight, hectoliter weight, protein and starch content, and color traits under both conditions. Ovidio had the highest grain yield and starch content, while Seckin 21 showed the highest 1000-kernel weight. Drought tolerance indices identified NZFM-41 and Maestrale as the most drought-resilient, and Ovidio as highly adaptable with stable yield. 12 indices (SSI, TOL, MP, GMP, STI, YI, YSI, HM, SDI, DI, RDI, SSPI) were calculated from yields under stress (Ys) and non-stress (Yp) conditions. Molecular analysis with 14 iPBS and 10 SCoT primers showed greater polymorphism and allelic diversity for iPBS (PIC = 0.287, Nei’s distance = 0.5348) than SCoT (PIC = 0.191, Nei’s distance = 0.2700). Clustering and population structure revealed two subpopulations, with iPBS providing higher resolution (FST = 0.3443). MP, GMP, STI, YI, HM, and DI were the most reliable indices for identifying drought-tolerant genotypes. In conclusion, iPBS markers exhibited higher discriminatory power than SCoT for assessing genetic diversity, while specific indices (MP, GMP, and STI) proved most effective for identifying drought-tolerant durum wheat genotypes, with NZFM-41 and Maestrale emerging as promising genetic resources for breeding programs aimed at enhancing climate resilience.

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Bu Makaleye Atıf Yap

Kızılgeçi, F., Türkoğlu, A., Haliloğlu, K., Eliş, S., Polat, B., Akçelik, G., Yıldırım, M., Demirel, F., Bocianowski, J. (2026). Revealing Genetic Diversity and Drought Tolerance in Durum Wheat through Agro-Physiological and Molecular Approaches. Turkish Journal Of Field Crops, Volume: 31 Issue: 1. https://doi.org/10.17557/tjfc.1765420

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