Os04g0610800
The rice gene Os04g0610800 was reported as rlin1 in 2010 by researchers from China[1].
Contents
Annotated Information
Gene Symbol
- Os04g0610800 <=> CPO, CPOX, LLM1, RLIN1
Function
- RLIN1 encoded a putative coproporphyrinogen III oxidase in tetrapyrrole biosynthesis pathway.
- RLIN1 may be a tetrapyrrole biosynthesis gene is involved in lesion formation in rice.
Mutation
Fig. 2. Phenotypes of mutant rlin1. A: plants of wild-type (light) and rlin1 (right). B: leaf sheath of wild-type (right) and rlin1 (left). C: leaves of wild-type (right) and rlin1 (left). D: panicles of wild-type (right) and rlin1 (left). [1].
- Two weeks after seeding, the mutant rlin1 had already begun to develop lesions on the young leaves and leaf sheaths shortly after full leaf expansion in both Beijing (N: 39.92_) and Hainan (N: 18.48_). The lesions initiated as small spots or stripes, then spreaded through the main vein of leaves or the middle part of the leaves. At the same time, more severe lesions were formed on the leaf sheaths. In the reproductive growth phase, lesions were also found on the spikes and spermoderms. Besides these, rlin1 showed slightly reduced plant height and later flowering phenotype compared to the wild-type (Fig. 2).
Expression
Fig. 6. Expression patterns of RLIN1 in different organs. [1].
- The expressions of RLIN1 were examined in different organs by quantitative real-time RT-PCR, and it showed RLIN1 was expressed in all the organs tested, and the expression level was much higher in roots than in the other organs, suggested RLIN1 had important functions in roots. This was corresponded to the report that the tetrapyrroles such as heme might be present in all organs[2]. Besides roots, RLIN1 expression levels decreased in the order of leaf sheaths, leaves, culms, with the lowest expression in the panicles, this expression pattern was consistent with the lesion mimic phenotype of rlin1 (Fig. 6).
Evolution
Fig. 4. phylogenetic tree analysis using Clustal X and MEGA4. [1].
- Alignment of RLIN1 with its homologs showed that the CPOX proteins were highly conserved in different species, especially in the C-terminal region (Fig. 4B).
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Labs working on this gene
- Key Laboratory for Cell Proliferation and Regulation Biology of Ministry of Education, College of Life Science, Beijing Normal University,
Beijing 100875, China
- The State Key Laboratory of Plant Genomics and National Plant Gene Research Center (Beijing), Institute of Genetics and Developmental Biology,
Chinese Academy of Sciences, Datun Road, Chaoyang District, Beijing 100101, China
- Graduate School of the Chinese Academy of Sciences, Yuquan Road, Beijing 100039, China
- Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
References
- ↑ 1.0 1.1 1.2 1.3 Sun C, Liu L, Tang J, Lin A, Zhang F, Fang J, Zhang G, Chu C. RLIN1, encoding a putative coproporphyrinogen III oxidase, is involved in lesion initiation in rice. J Genet Genomics. 2011 Jan;38(1):29-37. doi: 10.1016/j.jcg.2010.12.001. PubMed PMID: 21338950.
- ↑ Boese, Q.F., Spano, A.J., Li, J.M., Timko, M.P., 1991. Aminolevulinic acid dehydratase in pea (Pisum-Sativum L.). J. Biol. Chem. 266, 17060e17066.
