https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

Acta Horticulturae Sinica ›› 2021, Vol. 48 ›› Issue (5): 987-1001.doi: 10.16420/j.issn.0513-353x.2020-0600

• Research Papers • Previous Articles     Next Articles

Identification and Expression Analysis of the B-box Transcription Factor Family in Pepper

HU Jingtao*(), RUAN Yu, GAN Liping   

  1. College of Biology and Food Engineering,Chongqing Three Gorges University,Wanzhou,Chongqing 404100,China
  • Received:2021-02-23 Revised:2021-03-19 Online:2021-05-25 Published:2021-06-07

Abstract:

Based on the genome data of pepper,the chromosomal localization,gene structure,phylogenetic relationships and tissue-specific expression of B-box genes in pepper were analyzed by bioinformatics method. Moreover,the transcription level of the family genes under hormone and abiotic stress was detected by qRT-PCR. A total of 26 BBX members,which were distributed on 12 chromosomes,have been identified in pepper genome. Phylogenetic analysis showed that the CaBBX proteins could further be divided into five groups:groupⅠ-Ⅴ. Among them,members in groupⅠcontains two B-box domains. All the proteins in groupⅡandⅢcontained B-box1,B-box2 and CCT domains,except for CaBBX25. The proteins in group Ⅳ only had a B-box domain while members in group Ⅴ contained a B-box and a CCT domain. A same or similar number of exons has been found in members of the same clade usually. At the same time,a higher similar of the composition of motifs was also observed. Tissue specific expression analysis showed that the other 17 genes were highly expressed in different organs or at different devolpment stages of fruits,except for the class D genes. The result of qRT-PCR showed that 10 CaBBX genes could be promoted or repressed by the hormones and abiotic stresses.

Key words: pepper, B-box transcription factor, identification, expression analysis

CLC Number: