简介:Thepromoterregionofadroughtandabscisicacid(ABA)induciblegene,osr40c1,wasisolatedfromasalt-tolerantindicaricevarietyPokkali,whichis670bpupstreamoftheputativetranslationstartcodon.Insilicopromoteranalysisofresultedsequenceshowedthatatleast15typesofputativemotifsweredistributedwithinthesequence,includingtwotypesofcommonpromoterelements,TATAandCAATboxes.Additionally,severalputativecis-acingregulatoryelementswhichmaybeinvolvedinregulationofosr40c1expressionunderdifferentconditionswerefoundinthe5′-upstreamregionofosr40c1.TheseareABA-responsiveelement,light-responsiveelements(ATCT-motif,BoxI,G-box,GT1-motif,Gap-boxandSp1),myeloblastosisoncogeneresponseelement(CCAAT-box),auxinresponsiveelement(TGA-element),gibberellin-responsiveelement(GARE-motif)andfungal-elicitorresponsiveelements(BoxEandBox-W1).Aputativeregulatoryelement,requiredforendosperm-specificpatternofgeneexpressiondesignatedasSkn-1motif,wasalsodetectedinthePokkaliosr40c1promoterregion.Inconclusion,thebioinformaticanalysisofosr40c1promoterregionisolatedfromindicaricevarietyPokkaliledtotheidentificationofseveralimportantstress-responsivecisactingregulatoryelements,andtherefore,theisolatedpromotersequencecouldbeemployedinricegenetictransformationtomediateexpressionofabioticstressinducedgenes.
简介:本研究以二倍体马铃薯C为母本,E为父本的杂交F1群体共90个株系,构建了一张包含12个连锁群和78个SSR标记,总长度1141.99cM,标记间平均距离14.64cM的遗传图谱。结合2015年和2016年鉴定的与块茎建成相关性状表型数据,采用QTLIciMappingV4.1软件的完备区间作图法(ICIM)进行QTL定位和效应估计。共检测14个与株高、根长、匍匐茎长、匍匐茎数、微型薯数相关QTL。表型变异解释率为3.05%~19.19%。有5个QTL在2个环境中被重复检测到,其中在5号染色体上有2个(qTN5-1,qTN5-2)与微型薯相关的QTL,遗传贡献率为9.64%和9.67%。在9号染色上有3个(qSL9-1,qSL9-2,qSL9-3)与匍匐茎长相关的QTL,遗传贡献率为3.05%~14.17%。