Fig. 4From: Classification of barley U-box E3 ligases and their expression patterns in response to drought and pathogen stressesPhylogenetic analyses of PUB genes in Arabidopsis and rice. a. Phylogenetic analysis based on the classification category of previous studies [10]. In this phylogenic analysis, GKL-domain proteins were classified as Class III. Yellow asterisks indicated genes without ARM repeat domain in rice, OsPUB41, OsPUB42, OsPUB43. Red asterisk indicates OsPUB40 with ARM repeat domain. b. Phylogenetic analysis based on the renaming category that was suggested in this study. Most of Class III genes in Arabidopsis and rice were renamed into Class V except OsPUB35 and OsPUB40 that were sorted into Class IIBack to article page