AJPS  Vol.9 No.13 , December 2018
Cloning and Expression Analysis of RrRUP2 Gene Related to Photomorphogenesis Biosynthesis in Rosa rugosa
Plants have evolved and perfected a series of light receptors to feel the light at different bands and regulate the expression, modification and interaction of related genes in plants through signal transduction. So far, many photoreceptors have been identified in plants, UVR8 has recently been identified as a receptor for UV-B light. This paper cloned a WD40 gene related to UVR8 protein subunit, named RrRUP2, based on the Rosa rugose transcriptome data, using Rosa rugose “Zi zhi” as experimental materials. The full length of cDNA of the gene was obtained by RT-PCR and RACE methods. The total length of this gene is 1173 bp, and it encodes 390 amino acids. After bioinformatics analysis, the molecular formula C3415H5659N1173O1434S313 was predicted; the relative molecular weight was 96129.27 Da; the theoretical isoelectric point PI value was 5.00; and its instability index was 47.06. The total average hydrophobic index was 0.750. In the secondary structure of RrRUP2 protein, there are 10 α-helix, 45 β-helix, 181 Random coil, and 154 Extended strand. Gene Bank Blast results showed that the amino acid sequence encoded by RrRUP2 was more than 90% homologous with the RUP2 protein of Rosa chinensis, Fragaria, Malus, Pyrus, Prunus, Juglans, Arabidopsis and Tobacco, so it can be inferred that the RrRUP2 gene is a WD repeat-containing protein. Regarding to fluorescence quantitative expression analysis of RrRUP2, we find its experssion pattern is corresponded with the accumulation of anthocyanins.
Cite this paper: Wang, Y. , Zhao, M. , Han, X. , Zhao, L. and Xu, Z. (2018) Cloning and Expression Analysis of RrRUP2 Gene Related to Photomorphogenesis Biosynthesis in Rosa rugosa. American Journal of Plant Sciences, 9, 2533-2544. doi: 10.4236/ajps.2018.913183.

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