Sakata Seed Corporation

Atsushi Izumida

Takao Suzuki

Shingo Horiuchi

Tetsuya Hiramoto

Kazutoshi Mori

Kenji Takebayashi

Kazuhiro Nishikawa

A cytoplasmic male sterileplant is provided having a growth ability equivalent to that of aplant having a normal cytoplasm or a progeny of the cytoplasmic male sterileplant. For example, it is possible to improve the deterioration of growth ability which has been observed in the conventional cytoplasmic male sterileplants and provide a cytoplasmic male sterileplant having an improved growth ability.

Cytoplasmic male sterileplant having improved growth ability

The present specification discloses a method for detecting an aneuploid of aplant, including: performing real-time PCR using DNA extracted from a sample derived from aplant to be tested as a template and DNA markers specific to each of two or more chromosomes ofplant; and detecting chromosomal aneuploidy from a relative difference in amplification amount between the obtained DNA markers. According to one embodiment of the present invention, it is possible to simply, accurately, and rapidly detect an off-type (chromosomal aneuploid) that may occur invarieties, in a laboratory equipped with a general molecular biological equipment in the course of seed quality control and breeding research.

Method for detecting off-type ofplant

Aplant is provided having self-compatibility, or a progeny thereof, wherein the plant excludes cauliflower and Chinese kale. For example, aplant having self-compatibility is provided. Thereby, technical means that makes it possible to accomplish stable and efficient production of parental line seeds for aplant can be provided.

Self-compatibleplant and method for producing same

The present application discloses a cabbage having resistance against downy mildew or its progeny. The present application further discloses a method for breeding downy mildew resistant cabbage, including introducing downy mildew resistance from aplant having resistance against downy mildew into desired cabbage. One embodiment of the present invention provides a novel cabbage line showing high resistance against downy mildew and having a high commercial value as cabbage, and enables breeding such cabbage.

Downy mildew resistant cabbage and breeding method therefor

A method is provided of producing aplant seed including using abee as pollination means, and providing the abee a minor nectar plant to have preference in flower visiting, in addition to a pollen parentplant and a seed parentplant and to perform a crossing of aplant using a plant species having the preference in flower visiting equivalent to or lower than that of theplant. According to one embodiment, it is possible to produce ahybrid plant seed more efficiently and economically than before while using abee as pollination means.

Method of producingplant seed using a Megachile bee

The present invention relates to a novelhaving cytoplasmic male sterility and a method for breeding the same. More specifically, the present invention relates to a novelhaving cytoplasmic male sterility, wherein thesubstantially lacks pollen production functions due to insufficient stamen or pollen formation, and a method for breeding the same.

Growing community of inventors

Kanagawa, Japan

Atsushi Izumida