Species-specific Regulatory Pathways in the Development of Flower in Dimocarpus longan Lour.
Published:30 Jan.2023 Source:HPJ
Longan (Dimocarpus longan), as an important economic fruit tree in the subtropical zone, the flower development has a great impact on its yield, such as inflorescence morphogenesis and flower sex differentiation. At present, there have been many reports on the transcriptional regulation mechanism of longan flower development, but few studies have revealed the post transcriptional regulation of longan flower development.
Recently, the Team of Professor Xia Rui of South China Agricultural University published a research paper on Horticultural Plant Journal entitled " Species-specific regulatory pathways of small RNAs play sophisticated roles in flower development in Dimocarpus longan Lour.” In this study, it was found that 6 MIR482 loci produced 4 miR482 with different mature sequences in longan. In addition, it was also found in the study that longan specific miRNA-miRN15 and hp-siRNAs produced at HPL-056 and HPL-068 sites can target DlD14 (Dil.06g005400, unipodolactone receptor gene) and trigger it to produce secondary siRNA.
In this study, the techniques of small RNA sequencing, transcriptome sequencing and degradation group sequencing were used to analyze the post transcriptional regulation in the process of longan flower development, providing a theoretical basis for the regulation of longan flower formation and development, and helping to analyze the inflorescence morphogenesis and flower sex differentiation of longan.