Genome-wide Analysis of the WRKY Transcription Factor Family in Pepper
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 CaWRKYgenes were identified which were classified into three main groups (Ⅰ , Ⅱ and 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 1 which encompasses the largest number of 10 CaWRKY genes, while chromosome 4 only contained 2 CaWRKY 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.
NETL
NSTL
万方数据
维普
