草业学报Issue(8)：130-141,12.DOI:10.11686/cyxb2015102
蒺藜苜蓿全基因组中 U-box 基因家族的筛选与特征分析
Genome-wide screening and characterization of the U-box gene family in Medicago truncatula
摘要
Abstract
The U-box domain genes typically exist in multiple variants within plant genomes,and most of them belong to the ubiquitin/proteasome system as E3 ubiquitin ligase.They play key roles in the regulation of growth,in development,in reproduction as well as in response to environmental stress.In this study,bioin-formatics methods were applied to identify U-box family genes of M.truncatula through whole genome screen-ing.A phylogenetic tree was created using the MEGA6 program.Gene structure and chromosome location were defined by GSDS and Mapinspect.A total of 41 U-box genes distributed unevenly on 8 chromosomes were identified from M.truncatula.The U-box proteins were classified into six major classes based on their motif compositions and phylogeny relationships.The expression profiles of M.truncatula U-box genes showed char-acteristics of tissue specificity and response to salt,drought and nitrogen stress.These results will be useful for future functional analyses of the U-box family genes in M.truncatula.关键词
蒺藜苜蓿/U-box 基因家族/进化/表达模式Key words
Medicago truncatula/U-box gene family/phylogenetic analysis/expression patterns引用本文复制引用
郑兴卫,邵麟惠,李聪..蒺藜苜蓿全基因组中 U-box 基因家族的筛选与特征分析[J].草业学报,2015,(8):130-141,12.基金项目
国家自然科学基金（31372362）项目和“十二五”国家科技支撑计划（2011BAD17B01）资助。 （）
