Ce. Lange et al., GENETICS OF IN-VITRO ORGANOGENESIS AND PRECOCIOUS GERMINATION OF WHEAT EMBRYOS, GENETICS AND MOLECULAR BIOLOGY, 21(1), 1998, pp. 87-92
The genetic bases of in vitro organogenesis and precocious germination
of embryos in immature wheat embryo culture were investigated using s
ix Brazilian genotypes and their Fl, F2, BC1F1 and BC2F1 generations i
n a generation means analysis. Four parents and one set of Fl's were a
lso analyzed in a diallel experiment. The results indicated a complex
gene action controlling both traits, with additive, dominant and epist
atic effects. High broad sense heritability values were found, indicat
ing genetic determination. Considering the complexity of gene control,
genetic gain could be achieved by selecting for the traits in advance
d generations of the segregating population. Low correlation values be
tween organogenesis, precocious germination, regeneration and somatic
embryogenesis (data shown in a precious report) indicated the possibil
ity of obtaining recombinant genotypes.