Acta Horticulturae Sinica ›› 2021, Vol. 48 ›› Issue (8): 1470-1484.doi: 10.16420/j.issn.0513-353x.2020-0477

• Research Papers • Previous Articles     Next Articles

Accumulation of Anthocyanins in Red-flowered Strawberry‘Meihong’Petals and Expression Analysis of MYB Gene

HONG Yanhong, YE Qinghua, LI Zekun, WANG Wei, XIE Qian, CHEN Qingxi(), CHEN Jianqing()   

  1. College of Horticulture,Fujian Agriculture and Forestry University,Fuzhou 350002,China
  • Received:2021-01-22 Revised:2021-02-22 Online:2021-08-25 Published:2021-09-06
  • Contact: CHEN Qingxi,CHEN Jianqing;


‘Meihong’which is a red-flowered strawberry variety was dynamically observed the anthocyanin contents during petals development. Moreover,we performed transcriptome sequencing on four development periods of petals for screening key functional genes and transcription factors in the anthocyanin synthesis pathway. The results showed that:(1) During the lifecycle of petal,the content of anthocyanin is sharply increased and reached the highest at the petal half-open period,and then decreased;(2) The key functional genes of the anthocyanin synthesis pathway,FaPAL,Fa4CL-1,Fa4CL-2,FaDFR,and Fa3GT,were positively correlated with the accumulation of anthocyanins in their expression patterns;(3) FaMYB6 and FaMYB90 were performed positively correlation with anthocyanin content;(4) Pearson correlation analysis showed that FaMYB6 was significantly positively correlated with FaPAL and FaDFR;FaMYB90 had a significant positive correlation with FaPAL,Fa4CL-1,Fa4CL-2,FaDFR and Fa3GT;FaMYB82 was significantly negatively correlated with FaPAL,Fa4CL-1,Fa4CL-2,FaDFR and Fa3GT. In summary,FaMYB82,FaMYB6,FaMYB90 regulate the transcriptional of anthocyanin synthesis genes facilitated the accumulation of anthocyanin caused the color formation of the petals in‘Meihong’strawberry.

Key words: strawberry, red-flower, petal, anthocyanin, biosynthesis, R2R3-MYB transcription factor

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