1College of Horticulture，Sichuan Agricultural University，Chengdu 611130，China；2Institute of Pomology and Olericulture，Sichuan Agricultural University，Chengdu 611130，China
Abstract：A total of 54 MADS-box genes were identified from the grape genome，including 10 Type-Ⅰand 44 Type-Ⅱgenes. All of them distributed on 15 chromosomes，encoded protein sequence was 62–596 amino acids，and the number of exons 1–16 pieces. The promoter region contains a large number of related functional domains such as light signal，plant hormone，stress and meristem. According to the results of qRT-PCR，the expression level of SEP，FUL，FLC，SVP，SOC1 and ANR1 gradually increased with the leaves growth，reaching the highest in mature leaves，then decreased in old leaves；the first fruit expansion period and fruit color change period are the two peak expression stages of SEP，SOC1 and ANR1 subclass genes；hydrogen cyanamide treatment induced the expression of SVP，AGL15，SOC1，AP3/PI，AGL12 and FLC subclass genes to increase continuously during dormancy and decrease during dormancy release.
