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- Title
Combined BLUP selection indexes with parents and F² populations in soybean (Glycine max) breeding.
- Authors
Gomes Bezerra, André Ricardo; Vilela de Resende, Marcos Deon; Lopes da Silva, Felipe; Sediyama, Tuneo; Damião Cruz, Cosme; dos Santos Silva, Francisco Charles; Ferreira da Silva, Amilton
- Abstract
This study aimed to apply selection indexes in situations in which F2 populations and their parents are evaluated simultaneously in field trials to predict population genotypic values and selecting the best populations. Fifteen F2 soybean populations were evaluated for number of days to flowering and to maturity and grain yield. The data was analyzed using restricted maximum likelihood/best linear unbiased prediction (REML/BLUP) to obtain genotypic effects, variance components and accuracies. Four selection methods were compared: genotypic values of the F2 populations (gF2), combined index with the mean genotypic value of parents and F2 population (Ia) and two indexes that add (to gF2 and to Ia) and consider genetic variability within populations (Ib and Ic). The index Ia presented a result similar to that obtained with the gF2 selection method. Selection indexes (Ib and Ic) based on several sources of information were more efficient than selection based on gF2 values only.
- Subjects
GENETIC variation; INFORMATION resources; FIELD research; GENOTYPES; SOYBEAN
- Publication
Crop Breeding & Applied Biotechnology, 2023, Vol 23, Issue 4, p1
- ISSN
1518-7853
- Publication type
Article
- DOI
10.1590/1984-70332023v23n4a41