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Genetic potential and inheritance pattern of agronomic traits in faba bean under free and infested Orobanche soil conditions

文献类型： 外文期刊

作者： Soliman, Alaa A. 1 ; Ibrahim, Mohamed A. 1 ; Mousa, Manar I. 1 ; Mansour, Elsayed 3 ; He, Yuhua 2 ; Yu, Haitian 2 ;

作者机构： 1.Agr Res Ctr, Field Crops Res Inst, Food Legumes Res Dept, Giza 12619, Egypt

2.Yunnan Acad Agr Sci, Inst Food Crops, Kunming 650205, Peoples R China

3.Zagazig Univ, Fac Agr, Dept Crop Sci, Zagazig 44519, Egypt

关键词： Biotic stress; Breeding; Combining ability; Faba bean; GGE biplot; Heterosis; linextester; Orobanche

期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.3； 五年影响因子：5.9 ）

ISSN： 1471-2229

年卷期： 2024 年 24 卷 1 期

页码：

收录情况： SCI

摘要： Background Orobanche is an obligate parasite on faba bean in the Mediterranean region, causes considerable yield losses. Breeding tolerant faba bean genotypes to Orobanche is pivotal to sustain production and ensuring global food security, particularly considering the challenges posed by population growth. In the present study, seven faba bean lines and four testers were used in a linextester mating design during 2020-2021 and 2021-2022 growing seasons. The eleven parents and their 28 F-1 crosses were evaluated under Orobanche free and naturally infested soils. Results The results demonstrated considerable variations among the evaluated genotypes, wide diversity among the parental materials, and heterotic effects for all studied agronomic traits under Orobanche-free and infested soils. Orbanche infestation displayed a significant adverse impact on all the studied agronomic traits. The genotypes Line1, Line2, Line3, and Line5 displayed superior performance under Orobanche-infested conditions and recorded the highest values of all studied agronomic traits. Additionally, Line1, Line2, Line3, Line5, and Line7 exhibited desirable significant GCA for most evaluated traits under the two infestation conditions. The obtained crosses displayed significant negative or positive heterosis for studied agronomic characters such as plant height, number of branches per plant, number of pods per plant, number of seeds per plant, and seed weight per plant were observed. Furthermore, specific cross combinations such as Line2xSakha3, Line3xNubaria5, Line7 x Nubaria5, Line6xNubaria1, Line5xSakha3, Line1xSakha3, and Line1 x Nubaria5 exhibited superior performance in seed yield and contributing traits under Orobanche-infested conditions. Moreover, these specific crosses showed superior efficacy in reducing dry weight of Orobanche spikes. The results obtained from GGE biplot analysis closely aligned with those from the linextester procedure, affirming the significance of GGE biplot as a valuable statistical tool for assessing genotype combining ability in linex tester data. Both additive and non-additive gene actions were reported to be predominantly involved in the inheritance of the studied agronomic traits in faba bean. Conclusions The detected genetic diversity within the evaluated faba bean genotypes and their developed crosses exhibits substantial potential for improving faba bean productivity under Orobanche-infested conditions. The parental genotypes, Line1, Line2, Line3, Line5, and Line7, were identified as effective and promising combiners. Moreover, the developed crosses Line2xSakha3, Line3xNubaria5, Line7xNubaria5, Line6xNubaria1, Line5xSakha3, Line1xSakha3, and Line1xNubaria5 could be considered valuable candidates for developing high-yielding and tolerant faba bean genotypes to Orobanche.

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