Genetic parameters and breeding strategies for high levels of iron and zinc in Phaseolus vulgaris L.

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dc.contributorS. M. MARTINS, UFG; PATRICIA GUIMARAES SANTOS MELO, UFG; LUIS CLAUDIO DE FARIA, CNPAF; THIAGO LIVIO PESSOA OLIV DE SOUZA, CNPAF; LEONARDO CUNHA MELO, CNPAF; HELTON SANTOS PEREIRA, CNPAF.
dc.creatorMARTINS, S. M.
dc.creatorMELO, P. G. S.
dc.creatorFARIA, L. C.
dc.creatorSOUZA, T. L. P. O.
dc.creatorMELO, L. C.
dc.creatorPEREIRA, H. S.
dc.date2018-01-18T22:19:41Z
dc.date2018-01-18T22:19:41Z
dc.date2018-01-18
dc.date2016
dc.date2018-01-18T22:19:41Z
dc.date.accessioned2026-07-01T00:04:06Z
dc.descriptionOne of the current focus of common bean breeding programs in Brazil is to increase iron (FeC) and zinc content (ZnC) in grains. The objectives of this study were to estimate genetic parameters for FeC and ZnC in common bean, verify the need for conducting multi-site evaluation tests, identify elite lines that combine high FeC and ZnC with good adaptability, stability, and agronomic potential, and examine the genetic association between FeC and ZnC. Elite lines (140) were evaluated for important agronomic traits in multiple environments. In one trial, FeC and ZnC were evaluated and genetic parameters were estimated. Based on the high heritability estimates and significant selection gains obtained, the conditions for a successful selection was favorable. Of the 140 evaluated lines, 17 had higher FeC and ZnC, and were included in the validation test (2013, five environments), specifically for the evaluation of FeC and ZnC. The line by environment interaction for FeC and ZnC was detected, but it was predominantly simple. The environmental effect strongly influenced FeC and ZnC. The environment Brasilia/rainy season was selected as the best evaluation site for preliminary tests for FeC and ZnC, because it resulted in similar conclusions as the mean of the five environments. The lines CNFP 15701 and CNFC 15865 had higher FeC and ZnC and were highly adaptable and stable, and are recommended for utilization in breeding programs. The lines CNFC 15833, CNFC 15703, and CNFP 15676 showed excellent combined agronomic and nutritional traits, and were selected for the development of biofortified cultivars. Additionally, the genetic association between FeC and ZnC was detected.
dc.identifierGenetics and Molecular Research, v. 15, n. 2, gmr15028011, June 2016.
dc.identifier1676-5680
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1085791
dc.identifier10.4238/gmr.15028011
dc.identifier.urihttp://hdl.handle.net/123456789/396663
dc.languageeng
dc.rightsopenAccess
dc.subjectElite lines
dc.subjectFeijão
dc.subjectPhaseolus vulgaris
dc.subjectMelhoramento genético vegetal
dc.subjectBeans
dc.subjectPlant breeding
dc.subjectBiofortification
dc.titleGenetic parameters and breeding strategies for high levels of iron and zinc in Phaseolus vulgaris L.
dc.typeArtigo de periódico

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