Characterization of South American exotic maize (Zea mays L.) populations with opaque phenotype.

Eleven exotic populations of opaque maize from Brazil. Bolívia and Chile, were characterized. Kernels density, lysine and tryptophan contents, total zeins and non-zeins, zein individual fractions, and soluble sugars were analyzed. Although these populations bear soft endosperm, their zein prolifes b...

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Detalles Bibliográficos
Autores: GUIMARAES, C. T., BARROS, E. G., VASCONCELOS, M. J. V., PAIVA, E.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1995
País:Brasil
Institución:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
Repositorio:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Idioma:inglés
OAI Identifier:oai:www.alice.cnptia.embrapa.br:doc/475992
Acceso en línea:http://www.alice.cnptia.embrapa.br/alice/handle/doc/475992
Access Level:acceso abierto
Palabra clave:Milho opaco
Exotico
Caracteristica
America do Sul
South American
Maize
Opaque
Melhoramento
Zea Mays
breeding
Descripción
Sumario:Eleven exotic populations of opaque maize from Brazil. Bolívia and Chile, were characterized. Kernels density, lysine and tryptophan contents, total zeins and non-zeins, zein individual fractions, and soluble sugars were analyzed. Although these populations bear soft endosperm, their zein prolifes by gel electrophoresis, the nutritional quality of their proteins as well as the densities of their grains do not follow the patterns present in other opaque maize genotypes. We concluded that these exotic populations are not included in any class of endosperm mutant described so far.