Auxin is essential for plant growth and development,also closely related to plant architecture.YUCCA(YUC)proteins catalyse the rate-limiting step for endogenous auxin biosynthesis.In this study,we identified 57 BnYUC genes in Brassica napus(rapeseed)genome,located on 17 chromosomes.Among them,A09 chromosome con-tained the most BnYUCs as 6.Phylogenetic tree showed that all BnYUC members were divided into 2 evolutionary clusters,including 7 sub-groups.Among the sub-groups,CladeI-C consisted 20 members,evolved independently from Arabidopsis thaliana,and motif 10 was unique.Genomic collinearity analysis showed that YUC collinear gene pairs widely existed in Brassica species,indicating that this family has a high retention rate in the evolution.Expression profile suggested that the BnYUC family genes tended to express in specific growth/development stages as well as suffering stress/hormone treatments.It suggested that dominant expression of specific members existed with each development stage or treatment,indicating that each BnYUC might have a clear division of work,and play a given biological function.This work was expected to build a basis for further study of the involvement of BnYUC in growth,development and stress response.

Ka Zhang;Jinfang Zhang;Cheng Cui;Liang Chai;Benchuan Zheng;Jun Jiang;Haojie Li;Jinxing Tu

Crop Research Institute,Sichuan Academy of Agricultural Sciences,Chengdu,610066,China;National Key Laboratory of Crop Genetic Improvement,National Sub-Center of Rapeseed Improvement in Wuhan,College of Plant Science and Technology,Huazhong Agricultural University,Wuhan,430070,China

中国油料作物学报（英文）

[1]Ka Zhang;Jinfang Zhang;Cheng Cui;Liang Chai;Benchuan Zheng;Jun Jiang;Haojie Li;Jinxing Tu-.Genome-wide identification and expression profiling of the YUCCA gene family in Brassica napus)[J].中国油料作物学报（英文）,2022(03):103-111

YUC,BnYUC,BnYUCs,CladeI

Genome,identification,expression,profiling,YUCCA,family,Brassica,napus,Auxin,essential,plant,growth,development,also,closely,related,architecture,proteins,catalyse,rate,limiting,step,endogenous,auxin,biosynthesis,In,this,study,identified,genes,rapeseed,genome,located,chromosomes,Among,them,A09,tained,most,Phylogenetic,tree,showed,that,all,members,were,divided,into,evolutionary,clusters,including,sub,groups,consisted,evolved,independently,from,Arabidopsis,thaliana,motif,was,unique,Genomic,collinearity,analysis,pairs,widely,existed,species,indicating,has,high,retention,Expression,profile,suggested,tended,specific,stages,well,suffering,stress,hormone,treatments,It,dominant,each,might,have,clear,division,work,play,given,biological,function,This,expected,build,basis,further,involvement,response

0.564405