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2007•Journal of Hunan Institute of Humanities, Science and TechnologyRequires access

Genetic Studies on Pollen Fertility and Spikelet Fertility of Candidate Indica-compatible Japonica Lines in Rice (O.sativa L.)

LU Yong-gen

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Abstract

Aim: To understand the genetics of the pollen fertility and spikelet fertility of F1 hybrids of the indica-compatible japonica lines in rice(O.sativa L.),breed the fine varieties in rice.Methods: Genetics on pollen fertility and spikelet fertility of candidate indica-compatible japonica lines was studied with parents,hybrid F1 and F2 of 3 cross combination.Results: G2410 was an indica-compatible japonica line because of its indica-compatibility and its far genetic relationship with japonica varieties(lines).The pollen fertility and spikelet fertility of candidate indica-compatible japonica lines were controlled with many of genes and controlled with one to two key-genes and many of minor polygene in a cross combination.Every key-gene had its different heritability.Spikelet fertility genes were more than pollen fertility genes.

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Aim: To understand the genetics of the pollen fertility and spikelet fertility of F1 hybrids of the indica-compatible japonica lines in rice(O.sativa L.),breed the fine varieties in rice.Methods: Genetics on pollen fertility and spikelet fertility of candidate indica-compatible japonica lines was studied with parents,hybrid F1 and F2 of 3 cross combination.Results: G2410 was an indica-compatible japonica line because of its indica-compatibility and its far genetic relationship with japonica varieties(lines).The pollen fertility and spikelet fertility of candidate indica-compatible japonica lines were controlled with many of genes and controlled with one to two key-genes and many of minor polygene in a cross combination.Every key-gene had its different heritability.Spikelet fertility genes were more than pollen fertility genes.

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Available abstract

Aim: To understand the genetics of the pollen fertility and spikelet fertility of F1 hybrids of the indica-compatible japonica lines in rice(O.sativa L.),breed the fine varieties in rice.Methods: Genetics on pollen fertility and spikelet fertility of candidate indica-compatible japonica lines was studied with parents,hybrid F1 and F2 of 3 cross combination.Results: G2410 was an indica-compatible japonica line because of its indica-compatibility and its far genetic relationship with japonica varieties(lines).The pollen fertility and spikelet fertility of candidate indica-compatible japonica lines were controlled with many of genes and controlled with one to two key-genes and many of minor polygene in a cross combination.Every key-gene had its different heritability.Spikelet fertility genes were more than pollen fertility genes.

Key concepts: Japonica, Biology, Pollen, Fertility, Hybrid, Oryza sativa, Botany, Heritability

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Genetic Studies on Pollen Fertility and Spikelet Fertility of Candidate Indica-compatible Japonica Lines in Rice (O.sativa L.) — Research Paper | ScholarLens