更新情報研究支援ツール - 文献 - 詳細
文献詳細
| 文献 | ||
|---|---|---|
| 著者 | Yang J., Zhao X., Cheng K., Du H., Ouyang Y., Chen J., Qiu S., Huang J., Jiang Y., Jiang L., Ding J., Wang J., Xu C., Li X., Zhang Q. | |
| タイトル | A killer-protector system regulates both hybrid sterility and segregation distortion in rice. | |
|
Abstract: Hybrid sterility is a major form of postzygotic reproductive isolation that restricts gene flow between populations. Cultivated rice (Oryza sativa L.) consists of two subspecies, indica and japonica; inter-subspecific hybrids are usually sterile. We show that a killer-protector system at the S5 locus encoded by three tightly linked genes [Open Reading Frame 3 (ORF3) to ORF5] regulates fertility in indica-japonica hybrids. During female sporogenesis, the action of ORF5+ (killer) and ORF4+ (partner) causes endoplasmic reticulum (ER) stress. ORF3+ (protector) prevents ER stress and produces normal gametes, but ORF3- cannot prevent ER stress, resulting in premature programmed cell death and leads to embryo-sac abortion. Preferential transmission of ORF3+ gametes results in segregation distortion in the progeny. These results add to our understanding of differences between indica and japonica rice and may aid in rice genetic improvement. |
||
| 掲載誌 | Science | |
| Country | China | |
| 刊数 | 337(6100) | |
| ページ | 1336-40 | |
| 発刊年 | 2012 | |
| PubMed ID | 22984070 | |
| PubMed Central ID | - | |
| DOI | 10.1126/science.1223702 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | BZIP50 CP1 HSR203J S5 _ | |
| INSD | JX138502 JX138503 JX138504 JX138505 JX138498 JX138499 JX138500 JX138501 | |
| 系統 |
野生イネ コアコレクション |
- |
| 突然変異系統(遺伝研 Collection) | - | |
| 種子不稔系統 | - | |
| 致死変異体系統 | - | |
|
組織別発生段階 - 突然変異系統(遺伝子) |
- | |
| 栽培イネ品種(遺伝研 Collection) | - | |
| 組織別発生段階 | - | |
