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- Title
ROLLED LEAF 9 , encoding a GARP protein, regulates the leaf abaxial cell fate in rice.
- Authors
Song Yan; Chang-Jie Yan; Xiu-Hong Zeng; Ya-Chun Yang; Yu-Wei Fang; Chun-Yan Tian; Ya-Wei Sun; Zhu-Kuan Cheng; Ming-Hong Gu
- Abstract
Abstract Leaves, the collective organ produced by the shoot apical meristem (SAM), are polarized along their adaxial–abaxial axis. In this study, we characterized two rice (Oryza sativa) allelic rolled-leaf mutants, rolled leaf 9-1 (rl9-1) and rl9-2, which display very similar phenotypes with completely adaxialized leaves and malformed spikelets. We cloned the RL9 gene by way of a map-based cloning strategy. Molecular studies have revealed that RL9 encodes a GARP protein, an orthologue of Arabidopsis KANADIs. RL9 is mainly expressed in roots, leaves, and flowers. The transient expression of a RL9–GFP (green fluorescent protein) fusion protein has indicated that RL9 protein is localized in the nucleus, suggesting that RL9 acts as a putative transcription factor.
- Subjects
CELL determination; RICE; PLANT molecular biology; SHOOT apical meristems; PHENOTYPES; ARABIDOPSIS; GREEN fluorescent protein; TRANSCRIPTION factors
- Publication
Plant Molecular Biology, 2008, Vol 68, Issue 3, p239
- ISSN
0167-4412
- Publication type
Article
- DOI
10.1007/s11103-008-9365-x