Os04g0612700
The rice gene Os04g0612700 was reported as FC1 in 2009[1] by researchers from China.
Contents
Annotated Information
Fig. 1 Phenotypes and physical properties of wild-type, fc1 mutant plants and genetic complementary plants. [1].
Gene Symbol
- Os04g0612700 <=> FC1，OsFC1
Function
- Flexible culm1 (fc1) mutant by screening a rice T-DNA insertion mutant library exhibited an abnormal development phenotype, including late heading time, semi-dwarf habit, and flexible culm.
- FC1 encodes a cinnamyl-alcohol dehydrogenase.
- FC1 plays an important role in the biosynthesis of lignin and the control of culm strength in rice.
Expression
Fig. 5 FC1 expression analysis and RNA in situ hybridization in transverse sections of wildtype rice plants. [1].
- The researchers attempted to examine the expression pattern of FC1 in various rice organs with RNA gel-blot analysis, but it could not be detected due to its low expression level. Reverse transcription (RT)-PCR revealed that FC1 was expressed a bit more strongly at the seedling stage than at the heading stage, and expression levels were similar in leaf, stem, and root (Fig. 5a). At the heading stage, a strong FC1 expression level was detected in the first internodes, panicles, and roots (Fig. 5b). These expression patterns are closely related to the performance of FC1 in rice during growth and development. The null of FC1 in stem and flower caused reduced mechanical strength and fertility of fc1.
- The precise expression patterns of FC1 were explored further by RNA in situ hybridization. FC1' was expressed mainly in the highly lignified cells, including the vascular bundles and the sclerenchyma cells below the epidermis in stem (Fig. 5c–f). The expression pattern of FC1 in these tissues explained the deficiency in lignin biosynthesis observed with scanning electron microscopy and histochemical staining.
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Labs working on this gene
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
References
