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. 2024 Sep 28;10(19):e38632.
doi: 10.1016/j.heliyon.2024.e38632. eCollection 2024 Oct 15.

Selection of superior Brassica napus L. hybrids by integrated graphical and numerical diallel analysis by yield×traits: Using hayman and biplot diallel approaches

Kamal Payghamzadeh  1 , Hassan Amiri Oghan  2
Affiliations

Selection of superior Brassica napus L. hybrids by integrated graphical and numerical diallel analysis by yield×traits: Using hayman and biplot diallel approaches

Kamal Payghamzadeh et al. Heliyon. .

Abstract

Improving yield via assessment of different yield-related genetic parameters specifically with the challenges of yield × traits combination is a prominent issue for plant breeders. A graphical and numerical description of diallel analysis by yield × traits with the novelty of the parent selection with desirable genetic architecture in rapeseed was illustrated via Hayman and biplot approaches. Eleven divers' parents and their F1 offspring, achieved via a complete diallel mating fashion, were evaluated under field conditions based on randomized complete block design replicated thrice throught 2018-2020. Integrated yield × traits analysis revealed highly significant additive and non-additive gene effects which were confirmed by the meaningful general and specific combining ability of evaluated multi-traits. Graphical Wr-Vr analysis, depicted partial dominance gene action for yield × traits, except yield × thousand grain yield which is governed by over-dominance gene action.The biplot polygon panorama identified the most desirable heterotic parents with higher general and specific combining ability, and more dominant genes including [(P9) × (P4, P6, P10) for yield × pod]; [(P9) × (P7), (P6) × (P11) and (P7) × (P10) for yield × thousand grain yield] and [(P10 × P3) for yield/flowering, yield/physiological maturity, yield/plant height]. These findings suggested that a breeder should consider superior parents with high × high general and specific combining ability according to combining their yield and its related genetic parameters as important traits with all other target characters via descripted approaches.

Keywords: Brassica napus L.; Combining ability; Gene action; Genetic components; Graphical and numerical diallel analysis; Heritability; Multi-traits combination.

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Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Figures

Image 1
Graphical abstract
Fig. 1
Fig. 1
Wr-Vr graph for diallel analysis by GY/FI.
Fig. 2
Fig. 2
Wr-Vr graph for diallel analysis by GY/PM.
Fig. 3
Fig. 3
Wr-Vr graph for diallel by GY/PH and GY × PL.
Fig. 4
Fig. 4
Average tester coordination (ATC) and polygon view of the biplot based on the GY/FL. The small circle represents the average tester. Entries are in lowercase italic in blue and testers are in uppercase. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 5
Fig. 5
Average tester coordination (ATC) and polygon view of the biplot based on the GY/PM. The small circle represents the average tester. Entries are in lowercase italic in blue and testers are in uppercase. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 6
Fig. 6
Average tester coordination (ATC) and polygon view of the biplot based on the GY/PH. The small circle represents the average tester. Entries are in lowercase italic in blue and testers are in uppercase. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 7
Fig. 7
Wr-Vr graph for diallel by GY/PH and GY × PL.
Fig. 8
Fig. 8
Average tester coordination (ATC) and polygon view of the biplot based on the GY × PL. The small circle represents the average tester. Entries are in lowercase italic in blue and testers are in uppercase. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 9
Fig. 9
Wr-Vr graph for diallel by GY × PP.
Fig. 10
Fig. 10
Average tester coordination (ATC) and polygon view of the biplot based on the GY × PP. The small circle represents the average tester. Entries are in lowercase italic in blue and testers are in uppercase. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 11
Fig. 11
Wr-Vr graph for diallel by GY × TGW.
Fig. 12
Fig. 12
Average tester coordination (ATC) and polygon view of the biplot based on the GY × TGW. The small circle represents the average tester. Entries are in lowercase italic in blue and testers are in uppercase. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
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