ArticleMolecular biology reports2021
Evaluation of qualitative traits in modified Iranian Red Rey onion and comparison genetic resistance with primary mass selection and Red Azar-shahr cv to Fusarium oxysporum using laboratory and molecular markers.
Article in Molecular biology reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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5 authors at 2 institutions in 1 country.
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Abstract
backgroundThe bulb onion (Allium cepa L.) is grown on all continents except Antarctica, and is prized by essentially all of the world's cultures for its flavor and health-enhancing attributes. Onion breeders focus primarily on bulb characteristics such as color, shape, soluble-solids content, pungency and flavor, storage ability, and health-enhancing attributes, as well as plant characters such as resistances to diseases. The use of breeding approaches, offers great promise for population improvement and hybrid development addressing changes in consumer preference and production environments. The aim of this study is to evaluate the storage and qualitative feature of modified Red Rey Iranian Onion.
methodFirstly, the modified population was obtained by the selection of superior bulbs, cultivation, its self-pollination and consequently the identification of the best families and implement open pollination between them. In next level, the Red Rey Iranian modified with basic population and Red Azar-shahr cultivar (comparative) was crossed.
resultsOur results showed that the selection procedure has leading to improvement in variety of traits in population. Also, the modified Red Rey is significantly superior to the base mass in qualitative traits such as: bulb stiffness, bulb dry matter, TSS, total sugar and glucose; So that the percentage of dry bulb content increased from 10.4% in the basal mass to 11.1% in the modified Red Rey; while spouring and rotting, minerals, and dry matter, vitamin C and fructose-reducing sugar was not affected by genotype. In the second step, resistances to Fusarium wilt disease (laboratory and molecular markers) were evaluated. Based on the results of phenotypic evaluation, the modified Red Rey had the lowest rate and level of infection and the highest score. According to the results of genotypic evaluation, there is a very high genetic affinity between resistant and susceptible cultivars.
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