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Omrani, Ali, Khodarahmi, Manoochehr, Afshari, Farzad. (1399). Genetic Analysis of Resistance to Stripe Rust in Cross of the Wheat Commercial Cultivar Aflak (resistant) × Avocet‘s’ (susceptible). سامانه مدیریت نشریات علمی, (), -. doi: 10.22092/cbj.2020.341901.1052
Ali Omrani; Manoochehr Khodarahmi; Farzad Afshari. "Genetic Analysis of Resistance to Stripe Rust in Cross of the Wheat Commercial Cultivar Aflak (resistant) × Avocet‘s’ (susceptible)". سامانه مدیریت نشریات علمی, , , 1399, -. doi: 10.22092/cbj.2020.341901.1052
Omrani, Ali, Khodarahmi, Manoochehr, Afshari, Farzad. (1399). 'Genetic Analysis of Resistance to Stripe Rust in Cross of the Wheat Commercial Cultivar Aflak (resistant) × Avocet‘s’ (susceptible)', سامانه مدیریت نشریات علمی, (), pp. -. doi: 10.22092/cbj.2020.341901.1052
Omrani, Ali, Khodarahmi, Manoochehr, Afshari, Farzad. Genetic Analysis of Resistance to Stripe Rust in Cross of the Wheat Commercial Cultivar Aflak (resistant) × Avocet‘s’ (susceptible). سامانه مدیریت نشریات علمی, 1399; (): -. doi: 10.22092/cbj.2020.341901.1052

Genetic Analysis of Resistance to Stripe Rust in Cross of the Wheat Commercial Cultivar Aflak (resistant) × Avocet‘s’ (susceptible)

Crop Breeding Journal
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 22 آذر 1399  XML
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22092/cbj.2020.341901.1052
نویسندگان
Ali Omraniorcid 1؛ Manoochehr Khodarahmi email orcid 2؛ Farzad Afshariorcid 3
1Crop and Horticultural Science Research Department, Ardabil Agricultural and Natural Resources Research and Education Center, Agricultural Research, AREEO, Moghan, Iran.
2Seed and Plant Improvement Institute, Agricultural Research Education and Extension Organization, Karaj, Iran
3Cereal Research Department, Seed and Plant Improvement Institute, Karaj, Iran
چکیده
Stripe rust caused by Puccinia striiformis f. sp. tritici (Pst) is one of the most devastating wheat diseases worldwide. Identification of virulence factors of the pathogen, as well as using resistant cultivars, are effective approaches in controlling wheat rusts. Knowledge of the genetic basis of resistance to stripe rust in commercial wheat cultivars is an important objective to ensure diverse resistance genes are deployed in breeding programs. Five bread wheat commercial cultivars were evaluated for stripe rust using 40 Pst races that were collected from different locations in Iran. Among them cultivar Aflak showed seedling resistance to all races and the other varieties displayed field resistance at the adult plant stage. To study the heritability and the genetic analysis of resistance to stripe rust in bread wheat cultivar, Aflak was crossed to the susceptible cultivar Avocet‘s’ and the generations of F1, F2, BC1 and BC2 were developed. The generations along with the parents were planted in a Randomized Complete Block Design (RCBD) with three replicates under the greenhouse condition. The seedlings were inoculated using the race 230E158A+, Yr27+ urediniospores. The components of resistance including infection type, latent period, pustule’s size and pustule’s density were recorded on single plants of each generation. The results of the weighted analysis of variance showed that there were significant differences (p ≤ 0.01) among generations for each of the four traits. Generations mean analysis showed that in addition to additive and dominance effects, epistasis, particularly the additive×dominance epistasis also played a significant role in controlling resistance to stripe rust. For all traits, high broad-sense heritability was observed. Narrow-sense heritability was estimated for components of resistance from moderate to high.
کلیدواژه‌ها
Components of resistance؛ Epistasis؛ Generations mean analysis؛ Heritability
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تعداد مشاهده مقاله: 5


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