Genetic Analysis of Plant Regeneration from Seed-Derived Calli in Rice (Oryza sativa L.)
- Yoshinobu Takeuchi,
- Toshinori Abe and
- Takeo Sasahara
The ability of rice (Oryza sativa L.) to regenerate plantlets from calli differs among different cultivars. The present experiments were~ implemented to examine genetic characteristics of plant regeneration from calli in different rice cultivars. The rate of plant regeneration from mature seed-derived calli was higher in Tadukan (indica) than in Norin 1 (japonica). The inheritance mode of plant regeneration ability was analyzed in populations of the F2 generation from Norin 1 × Tadukan and in those of the back-crossed generation (FIBCI) from Norin 1 × F1 plants (Norin 1 × Tadukan). A Chi-square test in the F2 generation showed a 3 (dominant) : (recessive) segregation ratio for the higher and the lower plant regeneration abilities, respectively. A Chi-square test in the F1BC1 generation showed a 1 (dominant):l (recessive) segregation ratio for the higher and the lower plant regeneration abilities, respectively. Thus, the higher plant regeneration characteristics of Tadukan appear to be regulated by a single dominant gene.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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