Abstract
The star fruit is a perennial woody fruit tree, which can blossom and bear fruit many times a year. The time and quantity of flowering are the key indicators of its economic value. However, the flowering molecular mechanism of star fruit is still unknown. This study provides a genome-wide analysis of the key flowering genes of star fruit. Based on a previous morphological study of flower bud differentiation, the reproductive buds, vegetative buds and mature leaves of star fruit were sampled for transcriptome analysis. The results showed that the expression of GI, COL4, COL5, FT, FCA, FVE, PIF4, LFY, SVP-like, AP1 and FUL was correlated with floral induction and transition. The expression of TFL1, SVP-like genes (Yangtao2015203 and Yangtao2021074) was correlated with the inhibition of floral transition. Thus, we proposed a putative network of flower blooming in star fruit. This study provides useful information for investigating the genetic mechanism of flowering in star fruit and other perennial woody fruit trees.
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Data Availability
The datasets presented in this study can be found in online repositories. The names of the repository/repositories and accession number(s) can be found below: https://www.ncbi.nlm. nih.gov/bioproject/PRJNA855616.
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We thank Professor Baoming Feng (Plant Immunity Center, Fujian Agriculture and Forestry University) for manuscript revising.
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This work was financially supported by Basic Scientific Research for Special Projects of Guangxi Academy of Agricultural Sciences, China (Grant No. 2021YT046), Disciplinary Professional Construction Project of College of Art & College of Landscape Architecture, Fujian Agriculture and Forestry University (Grant No. YSYL-kjtd-1) and 2019 Fujian Agriculture and Forestry University "Rural Revitalization Service Team" Support Program Project (Grant No. 11899170124).
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SW, JZ, ZL and XL conceived and designed the experiments; SQ wrote the article with contributions of all the authors; CW, LY, DP and SA revised the article; HR collected samples and provided technical support. All authors read and approved the final manuscript.
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Qin, S., Li, XP., Wu, CM. et al. Genome-wide Transcriptome Analysis Reveals the Gene Regulatory Network in Star Fruit Flower Blooming. Tropical Plant Biol. 16, 1–11 (2023). https://doi.org/10.1007/s12042-022-09322-w
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DOI: https://doi.org/10.1007/s12042-022-09322-w