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| 著者 | Xu Q., Saito H., Hirose I., Katsura K., Yoshitake Y., Yokoo T., Tsukiyama T., Teraishi M., Tanisaka T., Okumoto Y. | |
| タイトル | The effects of the photoperiod-insensitive alleles, se13, hd1 and ghd7, on yield components in rice | |
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Abstract: flowering time is closely associated with grain yield in rice (Oryza sativa L.). In temperate regions, seasonal changes in day length (known as the photoperiod) are an important environmental cue for floral initiation. The timing of flowering is important not only for successful reproduction, but also for determining the ideal balance between vegetative growth and reproductive growth duration. Recent molecular genetics studies have revealed key flowering time genes responsible for photoperiod sensitivity. In this study, we investigated the effect of three recessive photoperiod-insensitive alleles, se13, hd1 and ghd7, on yield components in rice under Ehd1-deficient genetic background conditions to ensure vegetative growth of each line. We found that se13-bearing plants had fewer panicles, hd1-bearing plants showed decreased grain-filling percentage, and ghd7-bearing plants appeared to have fewer grains per panicle and fewer secondary branches. Our results indicate that the pleiotropic effects of photoperiod-insensitive genes on yield components are independent of short vegetative growth. This will provide critical information which can be used to create photoperiod-insensitive varieties that can be adapted to a wide range of latitudes. |
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| 掲載誌 | Molecular Breeding | |
| Country | Japan | |
| 刊数 | 33 | |
| ページ | 813-819 | |
| 発刊年 | 2014 | |
| PubMed ID | 24659905 | |
| PubMed Central ID | 3956932 | |
| DOI | 10.1007/s11032-013-9994-x | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | EF1 GHD7 SE1 SE13 | |
| INSD | - | |
| 系統 |
野生イネ コアコレクション |
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| 突然変異系統(遺伝研 Collection) | - | |
| 種子不稔系統 | - | |
| 致死変異体系統 | - | |
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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 | - | |
