Genome-wide analysis of the AP2/ERF gene family in maize

作     者：Min Huang~(1,2),Shuiyuan Cheng~2,Zuxin Zhang~3,Hewei Du~1 (1.College of life science,Yangtze University,Jingzhou,Hubei 434025,P.R.China 2.Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization,Huanggang Normal Universtiy,Huanggang,Hubei 438000,P.R.China 3.College of plant science and technology,Huazhong Agricultural University,Wuhan 430070,P.R.China) 

会议名称：《2012年全国玉米遗传育种学术研讨会暨新品种展示观摩会》

会议日期：2012年

学科分类：09[农学] 0901[农学-作物学] 

关 键 词：Maize(Zea mays L.) AP2/ERF Transcriptional factor Bioinfomatics In silico cloning 

摘      要：Plants experience various abiotic stresses during their life cycle,such as drought,salinity,and extreme temperatures, which cause extensive losses to agricultural production *** stress has become one of major limiting factor of crop loss, reducing extensive yields for most major crop plants by more than 50% .Plant adaptation to abiotic stresses is controlled by cascades of molecular *** relatively little is known about these molecular networks of plant tolerance to abiotic stress,a large number of stress - associated genes and signal - transduction systems have been *** researches show that AP2/ERF(APETALA2 /ethylene response factors) subfamily transcription factors play important roles in directing changes of gene expression during abiotic stress. AP2/ERF genes form a large multigene family,containing either one or two AP2 domains,and are classified into five subfamilies: AP2,DREB(dehydration responsive element binding),RAV(related to ABI3/VP),ERF,and others(Sakuma et al.,2002).ERF and DREB subfamily can be further divided into 6 subgroups respectively,ERF with B1-6 6 subgroups,and DREB subfamily with A1-6 6 *** has been demonstrated that AP2/ERF proteins play an important role in regulation of plant growth and development, response to environmental ***2/ERF genes play a variety of roles throughout the plant life cycles,however,few reports of AP2/ERF family are available for maize. In the present report,330 maize AP2/ERF genes were downloaded from PlnTFDB database,and 84 genes were belongs to 35 locus, ***,281 AP2/ERF genes were found from PlnTFDB database.121 maize AP2/ERF genes were obtained from NCBI and Maizesequence database through BLASTP,while 69 of 121 genes have founded in *** 52 of 120 genes were chosen. Above all,333 maize AP2/ERF genes were *** order to exclude false - positive,the amino acid sequence of 330 AP2/ ERF genes was used as a query to search in maiz