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Acta Horticulturae Sinica. 2015, (11) Core

Genome-wide Analysis of the WRKY Transcription Factor Family in PepperChinese Full Text

DIAO Wei-ping;WANG Shu-bin;LIU Jin-bing;PAN Bao-gui;GUO Guang-jun;GE Wei;Institute of Vegetable Crops,Jiangsu Academy of Agricultural Sciences,Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement;

Abstract: In the present study,based on the recently released pepper whole-genome sequences,CaWRKY gene family identification,gene classification,chromosome location,sequence alignment and conserved structure domains of CaWRKY proteins were predicted and analyzed with bioinformatics methods.The results showed that 71 CaWRKY genes were identified which were classified into three main groups（Ⅰ,Ⅱand Ⅲ）,with the second group further divided five subgroups[Ⅱ（a）,Ⅱ（b）,Ⅱ（c）,Ⅱ（d） and Ⅱ（e）].A total of 70 CaWRKY genes were mapped to 12 chromosomes,whereas only CaWRKY70 was not mapped to any particular chromosome.Genome mapping analysis revealed that pepper WRKY genes were enriched on several chromosomes（1,2,3 and 7）,especially on chromosome 1which encompasses the largest number of 10 CaWRKY genes,while chromosome 4 only contained 2CaWRKY genes.The pepper WRKYs from each group or subgroup were shown to share similar motif compositions,and CaWRKY proteins contained 132-869 amino acids and 373 in average.Our results will provide a platform for functional identification and molecular breeding tudy of WRKY genes in pepper.
Keywords：

pepper; WRKY; transcription factor; bioinformatic;

  • DOI：

    10.16420/j.issn.0513-353x.2015-0436

  • Series：

  • Subject：

  • Classification Code：

    S641.3

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