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《大豆GmPic基因的分离及表达分析-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、热带作物学报2012,33(3):446—452ChineseJournalofTropicalCrops大豆GmPic基因的分离及表达分析吴辉,符秀梅,张巧玲,郭倩丽,陈银华,沙爱华1海南大学农学院海南省热带生物资源可持续利用重点实验室.海南海口5702282中国农业科学院油料作物研究所.湖北武汉430062摘要对光敏感型大豆品种“中豆24”进行长13、短日和自然光3种光周期处理.采用cDNA—AFLP的方法筛选差异片段,并进一步通过RACE技术分离了该基因。该基因全长983bp,包含一个完整的开放阅读框,编码248个氨基酸,在遗传关系上与线粒体磷酸盐转运蛋白高度同源。通过
2、半定量RT—PCR对该基因在不同光周期中的表达模式进行分析,结果表明,该基因在大豆生长发育的早期阶段表达.短日照抑制其表达,而长日照则增强其表达。因此,大豆线粒体磷酸盐转运蛋白基因可能是作为一种负调控因子参与大豆光周期反应。对大豆线粒体磷酸盐转运蛋白基因的研究能为进一步阐明大豆光周期反应分子机理打下基础关键词大豆;线粒体磷酸盐转运蛋白;光周期;cDNA—AFLP中图分类号$565.1:Q781:Q786文献标识码ACloningofthePhotoperiodResponseGeneGmPicfromSoybeanandExpressionAnalysisWUHui,FUXi
3、umei,ZHANGQiaoling,GU0Qianli,CHENYinhua,SHAAihua1HainanKeyLaboratoryforSustainableUtilizationofTropicalBioresource,HainanUniversity,Haikou,Hainan570228,China2InstituteofOilCropsResearch,ChineseAcademyofAgricultureSciences,Wuhan,Hubei430062,ChinaAbstractInthisstudy,thelight—sensitivesoybeanv
4、ariety“ZhongDou24”wasprocessedforalongday,shortdayphotoperiodandnaturallight,andthenthediferentialexpressionfragmentswerescreenedviacDNA-AFLP.ThefulllengthofdifferentialgeneGmPicwasobtainedbyRACEtechnology.ThegeneGmPicis983bp,whichcontainsacompleteopenreadingflameencoding248aminoacids.Thege
5、neinthegeneticrelationshipishighlyhomologytothemitoehondrialphosphatetransportproteinaminoacids.Finally,expressionprofileofthegeneGmPicinleavestreatedwithdifferentphotoperiodswascarriedoutbysemi—quantitativeRT—PCR.TheexpressionpatternanalysisshowedthattheexpressionofthegeneGmPicisinhibitedb
6、yshort—dayinanearlystageofsoybean"sgrowthanddevelopment;whileitisenhancedbylong-day.SothegeneGmPicofsoybeanmitochondrialphosphatetransportergenemayserveasanegativeregulatorofphotoperiodicresponseinsoybean.Thisstudyofsoybeanmitochondrialphosphatetransportergenewasconductedtofurtherclarifythe
7、molecularmechanismofsoybeanphotoperiodresponse.keywordsSoybean(Glycinemax);Mi~ehondrialphosphatetransportprotein;Photoperiod;cDNA-AFLPdoi10.39696.issn.1000—2561.2012.03.010大豆(Gine)作为一种典型的短日照植71(),SOC1等,从而导致茎端分生组织(shoot物.其开花时间和成熟是农业生产的重要性状,控apicalmeristem
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