The -Targeted () Transcription Factor Regulates the Flowering Time by Binding to the Promoter of () in .

, a famous perennial ornamental plant and fruit tree in Asia, blooms in winter or early spring in the Yangtze River area. The flowering time directly determines its ornamental and economic value, so it is of great significance to study the molecular mechanism of flowering time. (), often regulated by , is an important flowering regulator, although its function is unknown in . Here, 11 precursors were analyzed and located in five chromosomes of the genome. The expression pattern showed that / was negatively correlated with . The promoters of / were specifically expressed in the apical meristem. Overexpression of / in tobacco promoted flowering and changed the length ratio of pistil and stamen. Moreover, also affected the number and vitality of pollen and reduced the fertility of transgenic tobacco. Furthermore, ectopic expression of caused up-regulated expression of endogenous (). The yeast-one hybrid assay showed that PmSBP1 was bonded to the promoters of . In conclusion, a miR156-PmSBP1-PmSOC1s pathway was formed to participate in the regulation of flowering time in , which provided references for the molecular mechanism of flowering time regulation and molecular breeding of