A quantitative nature of somatic embryogenesis in soybean

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Data

2001-11-01

Autores

Di Mauro, A. O.
De Oliveira, R. C.
Bonacin, G. A.
De Oliveira, J. A.
Di Mauro, SMZ
Collins, G. B.

Título da Revista

ISSN da Revista

Título de Volume

Editor

C A B I Publishing

Resumo

The objectives of this research were to investigate the genetic parameters associated with the in vitro formation of somatic embryos in soybean and to determine the effect of light intensity on the embryogenic capability of F-1, F-2, and backcross (RC1P1 and RC1P2) progenies derived from crosses between embryogenic (IAS-5 and Embrapa-1) and nonembryogenic (Parana) cultivars. Immature cotyledons (4-6 mm in length) derived from the parental lines, F-1, F-2, RC1P1, and RC1P2 were grown for 90 d on the inductive N10 medium, after which the number of somatic embryos was recorded. Chi-square tests for goodness of fit showed that the genetic component of the somatic embryogenesis trait is controlled in a quantitative manner by approximately 10 genes. A normal distribution for somatic embryo formation in the F-2 generations was observed reinforcing the quantitative nature of the trait. Variation in light intensity (8-12 and 27-33 mu mol m(-2) s(-1)) had no effect on somatic embryo formation in the parental material tested.

Descrição

Palavras-chave

Glycine max, In vitro, somatic embryogenesis, inheritance, F-2 generation, quantitative trait, light intensity

Como citar

In Vitro Cellular & Developmental Biology-plant. Wallingford: C A B I Publishing, v. 37, n. 6, p. 773-777, 2001.