Genetic control and transgressive segregation of zinc, iron, potassium, phosphorus, calcium, and sodium accumulation in cowpea (Vigna unguiculata) seeds.

SANTOS, C. A. F.; BOITEUX, L. S.

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	SANTOS, C. A. F.
dc.contributor.author	BOITEUX, L. S.
dc.date.accessioned	2018-01-12T23:14:00Z	-
dc.date.available	2018-01-12T23:14:00Z	-
dc.date.created	2015-12-01
dc.date.issued	2015
dc.identifier.citation	Genetics and Molecular Research, v. 14, n. 1, p. 259-268, Jan. 2015.
dc.identifier.uri	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1030173	-
dc.description	Cowpea crop, through combining a range of essential minerals with high quality proteins, plays an important role in providing nutritional security to human population living in semi-arid regions. Studies on genetics of biofortification with essential minerals are still quite scarce, and the major objective of the present study was to provide genetic information on development of cowpea cultivars with high seed mineral contents. Genetic parameters heritability and minimum number of genes were estimated for seed accumulation of zinc (Zn), iron (Fe), calcium (Ca), phosphorus (P), potassium (K), and sodium (Na). Generation mean and variance analyses were conducted using contrasting parental lines, F1, F2, and backcross populations derived from IT97K-1042-3 x BRS Tapaihum and IT97K-1042-3 x Canapu crosses. High narrow-sense heritability (h2) values were found for accumulation of Fe (65-86%), P (74-77%), and K (77-88%), whereas moderate h2 values were observed for accumulation of Ca (41-56%), Zn (51-83%), and Na (50-55%) in seeds. Significant additive genetic effects as well whereas epistasis was important genetic component in Zn content. The minimum number of genes controlling the accumulation of minerals ranged from two (K) to 11 (P). Transgressive segregation was observed in F2 populations of both crosses for all minerals analyzed. The results suggest that, although under either oligogenic or polygenic control, the seed content of these six minerals in cowpea can be improved via standard breeding methods largely used for self-pollinated crops.
dc.language.iso	eng	eng
dc.rights	openAccess	eng
dc.subject	Feijão caupi
dc.subject	Melhoramento genético
dc.subject	Generation mean analyses	pt_BR
dc.subject	Variance analyses	pt_BR
dc.title	Genetic control and transgressive segregation of zinc, iron, potassium, phosphorus, calcium, and sodium accumulation in cowpea (Vigna unguiculata) seeds.
dc.type	Artigo de periódico
dc.date.updated	2018-01-12T23:14:00Z	pt_BR
dc.subject.thesagro	Semente	pt_BR
dc.subject.thesagro	Vigna Unguiculata	pt_BR
dc.subject.nalthesaurus	Genetic improvement
dc.subject.nalthesaurus	Minerals
riaa.ainfo.id	1030173
riaa.ainfo.lastupdate	2018-01-12
dc.identifier.doi	10.4238/2015.January.16.10.
dc.contributor.institution	CARLOS ANTONIO FERNANDES SANTOS, CPATSA; LEONARDO SILVA BOITEUX, CNPH.
Aparece en las colecciones:	Artigo em periódico indexado (CNPH)

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