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  • Title: Identification of differential expression genes related to anthocyanin biosynthesis in carmine radish (Raphanus sativus L.) fleshy roots using comparative RNA-Seq method.
    Author: Gao J, Li WB, Liu HF, Chen FB.
    Journal: PLoS One; 2020; 15(4):e0231729. PubMed ID: 32330148.
    Abstract:
    Radish (Raphanus sativus L.), is an important root vegetable crop grown worldwide, and it contains phyto-anthocyanins. However, only limited studies have been conducted to elucidate the molecular mechanisms underlying anthocyanin biosynthesis in the different color variants of the radish fleshy root. In this study, Illumina paired-end RNA-sequencing was employed to characterize the transcriptomic changes in seven different types of radish fleshy roots. Approximately, 126 co-modulated differentially expressed genes were obtained, and most DEGs were more likely to participate in anthocyanin biosynthesis, including two transcription factors RsMYB_9 and RsERF070, and four functional genes RsBRICK1, RsBRI1-like2, RsCOX1, and RsCRK10. In addition, some related genes such as RsCHS, RsCHI, RsANS, RsMT2-4, RsUF3GT, glutathione S-transferase F12, RsUFGT78D2-like and RsUDGT-75C1-like significantly contributed to the regulatory mechanism of anthocyanin biosynthesis in the radish cultivars. Furthermore, gene ontology analysis revealed that the anthocyanin-containing compound biosynthetic process, anthocyanin-containing compound metabolic process, and significantly enriched pathways of the co-modulated DEGs were overrepresented in these cultivars. These results will expand our understanding of the complex molecular mechanism underlying anthocyanin synthesis-related genes in radish.
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