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ID:34109155
大小:8.71 MB
页数:55页
时间:2019-03-03
《农杆菌介导ip-10基因遗传转化马铃薯的研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、万方数据UniversityCode:10225RegisterCode:080063DissertationfortheDegreeofMasterStudyonAgrobacteriumMediatedPotatoTransformationof/P—loGeneCandidate:Supervisor:AcademicDegreeAppliedfor:Speeiality:DateofOraIExam1lnatl‘on.University:WanPengVice—Prof.LiKuihuaMasterDevelopmentBiologyJune,
2、2008NortheastForestry万方数据摘望摘要本论文利JtJ马铃薯微型磐为试验材料,通过1i川激索组合试验,优化了尔农303t%种的高效再分化体系。采用农杆菌介导法将IP—lO錾冈导入马铃薯基闪纽-11,并通过PCR、RT-PCR、GFP蛋白荧光检测,验址了H的魅凶【二!I转入马铃薯基凶组。p。另外,探讨了转基因植株试管薯形成的最佳条件。1.利用马铃薯脱毒试管苗茎段、叶片和薯块为试验材料,通过IAA、NAA、GA,、IBA、6.BA、ZT的不同组合,进行了再分化试验。结果表明,诱导茎段愈伤的最适培养基为:MS+IBA0.1rrl.g/L+6.
3、BA0.5mg/L,愈伤诱导率为86%;但其出芽率较低:诱导叶片再分化的最适培养基为:MS+ZT10.0mg/L+NAA0.1mg/L+GA3O.2mg/L,出芽率达150%;薯块再分化最适培养基为:MS+IAA1.Omg/L+ZT3.5mg/L,分化率为120%。2.对农杆菌侵染并通过潮霉素筛选的转基因植株,进行了护.,D基因和潮霉素磷酸转移酶基因(胛71)的PCR扩增,分别获得了276bp和602bp所需目的条带。通过进一步的RT—PER反应和6FP荧光蛋白的激光共聚焦检测,最终获得3个转基因株系。3.探讨了KT、B9、CCC等激素和蔗糖浓度对转基因
4、株系形成试管薯的影响。结果表明,当KT浓度为100mg/L,B9的浓度为150mg/L,蔗糖的浓度为8%时试管薯形成量较多,其MT/Plantlet分别为1.4,1.5和1.6,表明KT、B9和蔗糖均为转基因试管薯诱导的可选试剂。关键词马铃薯:遗传转化;IP-IG试管薯万方数据AbstractPotatominituberwasusedaSexplantinthisstudy.AefficientregenerationsystemofcultivarDongnon9303wasoptimizedbytestingdifferenthormonecomb
5、inations.AtthesametimeIP-IOgeneWasintroducedintopotatogenomewithAgrobacteriummediatedmethod.PeR,RT-PCRandGFPfluorescencedetectionWasdonetoprovethattargetgenehadbeenconformedintopotatogenome.Inaddition,thebestconditionsoftransgenepotatomicrotuberformationWasdiscussed.1.Virus-freep
6、otatoplantletsWasusedtodoregenerationtestingbydifferentIAA,NAA,GA3,IBA,6-BAandZTcombinations.TheresultsshowedthattheoptimalmediumforcallusinductionfromstemwasMS+IBA0.1mg/L+6-BAO.5mg/Landitsinductivitywas86%,butgerminationrateWaslow;乃ebestdifferentiationmediumforleavesWaSMS+ZT10.0
7、0mg/L+NAAO.1mg/L+GA30.2mg/LandtheshootinductionrateWas150%.Ontheotherhand,theoptimaldifferentiationmediumfortuberdiscWasMS+IAA1.0mg/L+ZT3.5mg/Landthedifferentiationratereachedl20%.2.TransgenicplantswhichwereobtainedbyAgrobacteriuminfectionandhygromycinselectionwereperformedtoPCRa
8、mplificationof/P一10andhygromyeinphosphor
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