- 著者
- Yutaka Sato Katsutoshi Tsuda Yoshiyuki Yamagata Hiroaki Matsusaka Hiromi Kajiya-Kanegae Yuri Yoshida Ayumi Agata Kim Nhung Ta Sae Shimizu-Sato Toshiya Suzuki Misuzu Nosaka-Takahashi Takahiko Kubo Shoko Kawamoto Ken-Ichi Nonomura Hideshi Yasui Toshihiro Kumamaru
- 出版者
- Japanese Society of Breeding
- 雑誌
- Breeding Science (ISSN:13447610)
- 巻号頁・発行日
- vol.71, no.3, pp.291-298, 2021 (Released:2021-07-30)
- 参考文献数
- 62
- 被引用文献数
- 5
Biological resources are the basic infrastructure of bioscience research. Rice (Oryza sativa L.) is a good experimental model for research in cereal crops and monocots and includes important genetic materials used in breeding. The availability of genetic materials, including mutants, is important for rice research. In addition, Oryza species are attractive to researchers for both finding useful genes for breeding and for understanding the mechanism of genome evolution that enables wild plants to adapt to their own habitats. NBRP-RICE contributes to rice research by promoting the usage of genetic materials, especially wild Oryza accessions and mutant lines. Our activity includes collection, preservation and distribution of those materials and the provision of basic information on them, such as morphological and physiological traits and genomic information. In this review paper, we introduce the activities of NBRP-RICE and our database, Oryzabase, which facilitates the access to NBRP-RICE resources and their genomic sequences as well as the current situation of wild Oryza genome sequencing efforts by NBRP-RICE and other institutes.
- 著者
- Yutaka Sato Katsutoshi Tsuda Yoshiyuki Yamagata Hiroaki Matsusaka Hiromi Kajiya-Kanegae Yuri Yoshida Ayumi Agata Kim Nhung Ta Sae Shimizu-Sato Toshiya Suzuki Misuzu Nosaka-Takahashi Takahiko Kubo Shoko Kawamoto Ken-Ichi Nonomura Hideshi Yasui Toshihiro Kumamaru
- 出版者
- Japanese Society of Breeding
- 雑誌
- Breeding Science (ISSN:13447610)
- 巻号頁・発行日
- pp.21005, (Released:2021-06-26)
- 被引用文献数
- 5
Biological resources are the basic infrastructure of bioscience research. Rice (Oryza sativa L.) is a good experimental model for research in cereal crops and monocots and includes important genetic materials used in breeding. The availability of genetic materials, including mutants, is important for rice research. In addition, Oryza species are attractive to researchers for both finding useful genes for breeding and for understanding the mechanism of genome evolution that enables wild plants to adapt to their own habitats. NBRP-RICE contributes to rice research by promoting the usage of genetic materials, especially wild Oryza accessions and mutant lines. Our activity includes collection, preservation and distribution of those materials and the provision of basic information on them, such as morphological and physiological traits and genomic information. In this review paper, we introduce the activities of NBRP-RICE and our database, Oryzabase, which facilitates the access to NBRP-RICE resources and their genomic sequences as well as the current situation of wild Oryza genome sequencing efforts by NBRP-RICE and other institutes.
- 著者
- Takahiko Kubo Yoshiyuki Yamagata Maki Eguchi Atsushi Yoshimura
- 出版者
- The Genetics Society of Japan
- 雑誌
- Genes & Genetic Systems (ISSN:13417568)
- 巻号頁・発行日
- vol.83, no.6, pp.443-453, 2008 (Released:2009-03-12)
- 参考文献数
- 41
- 被引用文献数
- 32 41
Postzygotic reproductive isolation (RI) often arises in inter-subspecific crosses as well as inter-specific crosses of rice (Oryza sativa L.). To further understand the genetic architecture of the postzygotic RI, we analyzed genes causing hybrid sterility and hybrid breakdown in a rice inter-subspecific cross. Here we report hybrid male sterility caused by epistatic interaction between two novel genes, S24 and S35, which were identified on rice chromosomes 5 and 1, respectively. Genetic analysis using near-isogenic lines (NILs) carrying IR24 (ssp. indica) segments with Asominori (ssp. japonica) genetic background revealed a complicated aspect of the epistasis. Allelic interaction at the S24 locus in the heterozygous plants caused abortion of male gametes carrying the Asominori allele (S24-as) independent of the S35 genotype. On the other hand, male gametes carrying the Asominori allele at the S35 locus (S35-as) showed abortion only when the IR24 allele at the S24 locus (S24-ir) was concurrently introgressed into the S35 heterozygous plants, indicating that the sterility phenotype due to S35 was dependent on the S24 genotype through negative epistasis between S24-ir and S35-as alleles. Due to the interaction between S24 and S35, self-pollination of the double heterozygous plants produced pollen-sterile progeny carrying the S24-ir/S24-ir S35-as/S35-ir genotype in addition to the S24 heterozygous plants. This result suggests that the S35 gene might function as a modifier of S24. This study presents strong evidence for the importance of epistatic interaction as a part of the genetic architecture of hybrid sterility in rice. In addition, it suggests that diverse systems have been developed as postzygotic RI mechanisms within the rice.