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Ethyl methanesulfonate-induced seedcoat color mutants in Phaseolus vulgarisL.

Hélio Morais Barbosa^I; José Eustáquio de Souza Carneiro^II; Clibas Vieira^III

^IDepartamento de Biologia Geral, Universidade Federal de Viçosa, 36570 Viçosa, MG, Brasil. Send correspondence to H.M.B.
^IIEMBRAPA/CNPAF, 74000 Goiânia, GO, Brasil
^IIIDepartamento de Fitotecnia, Universidade Federal de Viçosa, 36570 Viçosa, MG, Brasil

ABSTRACT

Germinating seeds of a high yielding black bean (Phaseolus vulgaris L.) cultivar were treated with 0 (control), 0.0625, 0.125, 0.25 and 0.5% (v/v) buffered ethyl methanesulfonate (EMS) solutions with the purpose of exploring the possibility of inducing seedcoat color mutations. The highest frequency of mutations was induced by 0.25% EMS. The results indicate that EMS-induced genetic modifications can readily change the seedcoat color of the cultivar used to different hues of brown.

Keywords: ethyl; methanesulfonate-induced; seedcoat; color; mutants; Phaseolus vulgaris.

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