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vol.16 número4Identification of heterotic patterns between expired proprietary, NDSU, and industry short-season maize inbred lines índice de autoresíndice de assuntospesquisa de artigos
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Crop Breeding and Applied Biotechnology

versão impressa ISSN 1518-7853versão On-line ISSN 1984-7033

Resumo

RODRIGUES, Josiane Isabela da Silva et al. QTL mapping for yield components and agronomic traits in a Brazilian soybean population. Crop Breed. Appl. Biotechnol. [online]. 2016, vol.16, n.4, pp.265-273. ISSN 1518-7853.  https://doi.org/10.1590/1984-70332016v16n4a41.

The objective of this work was to map QTL for agronomic traits in a Brazilian soybean population. For this, 207 F2:3 progenies from the cross CS3035PTA276-1-5-2 x UFVS2012 were genotyped and cultivated in Viçosa-MG, using randomized block design with three replications. QTL detection was carried out by linear regression and composite interval mapping. Thirty molecular markers linked to QTL were detected by linear regression for the total of nine agronomic traits. QTL for SWP (seed weight per plant), W100S (weight of 100 seeds), NPP (number of pods per plant), and NSP (number of seeds per plant) were detected by composite interval mapping. Four QTL with additive effect are promising for marker-assisted selection (MAS). Particularly, the markers Satt155 and Satt300 could be useful in simultaneous selection for greater SWP, NPP, and NSP.

Palavras-chave : Glycine max; yield; quantitative trait locus; microsatellite markers.

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