萝卜全基因组中LBD基因家族成员的鉴定与分析  

Genome-wide Characterization of the LBD Gene Family in Radish

作　　者：刘同金[1] 张晓雪 张晓辉[1] 王海平[1] 邱杨[1] 宋江萍[1] 李锡香[1] LIU Tong-jin;ZHANG Xiao-xue;ZHANG Xiao-hui;WANG Hai-ping;QIU Yang;SONG Jiang-ping;LI Xi-xiang(Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops,Ministry of Agriculture,Beijing 100081)

机构地区：[1]中国农业科学院蔬菜花卉研究所/农业部园艺作物生物学与种质创制重点实验室,北京100081

出　　处：《植物遗传资源学报》2019年第1期168-178,共11页Journal of Plant Genetic Resources

基　　金："十三五"国家重点研发计划课题(2016YFD0100204-2);中国博士后科学基金项目(2017M620971);国家科技资源共享服务平台(NICGR2018-15);农作物种质资源保护项目;中国农业科学院科技创新工程协同创新任务(CAAS-XTCX2016016-4-4;CAASXTCX2016001-5-2;CAAS-XTCX2016017)~~

摘　　要：LBD基因家族是植物所特有的一类转录因子,在植物生长发育过程中起到非常重要的作用。本研究利用生物信息学方法,从萝卜基因组中鉴定出分布于9条染色体上的59个LBD基因。该家族成员结构比较简单,内含子数均不超过3个。萝卜LBD基因可分为两大类,分别包含50个和9个成员。它们在染色体上的分布不均匀,1号染色体上基因数目最多,有18个,而7号和8号染色体分别仅有1个LBD基因。对它们在不同组织和发育时期的表达模式研究发现,该基因家族具有一定的时空表达特异性,预测其参与萝卜不同的发育过程。本研究为萝卜LBD基因家族的功能分析奠定了基础。LBD gene family is a plant-specific transcription factors and plays very important role in plant development.In this study,59 LBD genes were identified using bioinformatic approach and they were found on 9 chromosomes of radish genome.The radish LBD genes have simple genomic organization with the intron numbers being less than 3.These LBD genes could be classified into 2 classes according to the phylogeny relationship,including 50 and 9 members,respectively.The number of radish LBDs on chromosomes was different.For instance,eighteen members were found on chromosome 1,while only one member was found on chromosome 7 and 8.The expression patterns of radish LBD genes in different tissues and development stages showed spatial and temporal differences,implying the functional specificity.Thus,these results will become helpful for the functional characterization of the LBD genes family.

关 键 词：萝卜 LBD基因家族 系统进化 基因表达 

分 类 号：S631.1[农业科学—蔬菜学]