The cleistogamy of the mutation is sensitive to low temperatures during the lodicule-forming stage.

We reported previously that the rice ( L.) cleistogamous mutation () was applicable to inhibit outcrossing between genetically modified varieties and their relatives, which causes pollen-mediated gene flow or disturbance of line purity. The cleistogamy of is caused by decreased protein-protein interactions between the mutant SPW1 and its partner proteins.

Diversity of seed cesium accumulation in soybean mini-core collections.

Radiocesium is an extremely harmful radionuclide because of its long half-life; it is important to reduce its transfer from contaminated soil into crops. Here we surveyed genetic variation for seed cesium (Cs) concentration in soybean mini-core collections representing large genetic diversity. The collections grown over 3 years in rotational paddy fields exhibited varying seed Cs concentrations with significant year-to-year correlations, although the phenotypic stability of Cs concentration was lower than that of the congeners potassium (K) and rubidium (Rb).

Agronomic traits and gene containment capability of cleistogamous rice lines with the superwoman1-cleistogamy mutation.

Pollen-mediated transgene flow is a major concern for the production of genetically modified (GM) rice. Cleistogamy is a useful tool for preventing this form of gene flow. We previously identified the cleistogamous rice mutant superwoman1-cleistogamy (spw1-cls) and determined its molecular genetic mechanism.