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文献 | ||
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著者 | Ishikawa S, Maekawa M, Arite T, Onishi K, Takamure I, Kyozuka J. | |
タイトル | Suppression of Tiller Bud Activity in Tillering Dwarf Mutants of Rice | |
Abstract: In this study, we analyzed five tillering dwarf mutants that exhibit reduction of plant stature and an increase in tiller numbers. We show that, in the mutants, axillary meristems are normally established but the suppression of tiller bud activity is weakened. The phenotypes of tillering dwarf mutants suggest that they play roles in the control of tiller bud dormancy to suppress bud activity. However, tillering dwarf mutants show the dependence of both node position and planting density on their growth, which implies that the functions of tillering dwarf genes are independent of the developmental and environmental control of bud activity. Map-based cloning of the D3 gene revealed that it encodes an F-box leucine-trich repeat (LRR) protein orthologous to Arabidopsis MAX2/ORE9. This indicates the conservation of mechanisms controlling axillary bud activity between monocots and eudicots. We suggest that tillering dwarf mutants are suitable for the study of bud activity control in rice and believe that future molecular and genetic studies using them may enable significant progress in understanding the control of tillering and shoot branching. |
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掲載誌 | Plant Cell Physiol. | |
Country | Japan | |
刊数 | 46(1) | |
ページ | 79-86 | |
発刊年 | 2005 | |
PubMed ID | 15659436 | |
PubMed Central ID | - | |
DOI | 10.1093/pcp/pci022 | |
URL | - | |
関連情報 | ||
遺伝子 | D10 D14 D17 D27 D3 | |
INSD | - | |
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 | - |