水稻CesA/Csl基因家族的全基因组鉴定及生物信息学分析

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中图分类号：S511；Q781 文献标志码：A 文章编号：1008-0864（2025）11-0083-10

Abstract： Rice cellulose synthase supergene family is composed of CesA（cellulose synthase） and Csl （cellulose synthase-like protein）.In order to understand'the sequence characteristicsand expression characteristics of the membersofthefamily，and explore theirfunctions，bioinformatics methods wereusedtoidentifyOsCesA/Cslgenes in thewhole rice genome.Their physical and chemical properties，conserved motifs，gene structure，systematic evolution，cis-cting elements，chromosome mapping andcollinearitywereanalyzed.Their expression indiferent tisues and different plant hormone treatments were analyzed based on transcriptomedata.Theresults showed thata total of22 membersofOsCesA/Cslfamily were identified inrice genome，and the length of gene coding sequence （CDS）was 774～3 648 bp，protein molecular weight was 28.55～132.16 kD，isoelectric point was 6.09～9.62，and average hydrophiliccoefficient was-0.339～0.750.Thesubcellularlocalizationof22 members was oncellmembrane or Golgi apparatus.Phylogenetic evolution divided 22 members into 2 categories： OsCesA and OsCsl ，each containing 11 members.The family members were distributed on11 chromosomes except chromosome11.There were 2 sets of tandemrepeat genes in rice，and there was better colinearity between rice and maize.OsCesA/Csl members had differenttisueexpression patterns，and each member responded to jasmonicacid，abscisic acid，gibberelin and auxin treatmentin diffrent degres.Aboveresults laida foundation for further exploring the specific functionof OsCesA/Csl gene family in the growthand development of rice.

Keywords：rice； cellulose synthases； genome-wide identification； bioinformatics

纤维素是植物细胞壁的主要成分，纤维素合酶（cellulosesynthase，CesA）和类纤维素合酶（cellulose synthase-likeprotein，Csl）是纤维素生物合成途径中的关键酶，在植物生长发育和植物防御反应中起重要作用。（剩余13157字）