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ID:39123755
大小:1.86 MB
页数:58页
时间:2019-06-25
《氮素对稻米主要品质性状的影响与QTLs定位分析》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、在第11染色体上;BDV(3个QTLs),分别定位在第3、5、12三条染色体上;SBV(1个QTL),定位在第5染色体上;CSV(1个QTL),也定位在第5染色体上;粒宽(1个QTL),定位在第2染色体上;Ac(2个QTLs)、GC(1个QTL)、GT(1个QTL),分别定位在第2,6,8,1l染色体上。三个淀粉黏度参数(PKV、BDV、SBV)检测出同一个QTL,在第5染色体上,相应区段是RM430~RM440,加性效应值分别为,2.69、3.13、2.76。(5)在N10水平下,共检测出12个与品质性状有关
2、的QTLs,其中,PKV(2个QTLs)分别同时定位在第8、9染色体上:HPV(2个QTLs),分别定位在第1、6染色体上;CPV(2个QTLs)分别定位在第1、6染色体上,AC(2个QTLs)、GC(2个QTLs)GT(1个QTL),分别定位在第2、4、6、8四条染色体上。关键词:水稻施氮水平品质性状QTL定位111AbstractAlongwiththelivesofthepeoplelevelunceasingenhancementandtheadaptioninternationalmarketneed
3、,thericequalityimprovementhasbroughttotheaRentiondaybydayinthevariouscountries,indicatedintheformerresearch,twoenvironmentalfactorstothepaddyricequalityinfluencearemostmain,oneistemperatureofthericeingroutingperiod;theotherisincultivationmeasureapplyingferti
4、lizer.Inappliesfertilizerintheregulation,asisespeciallyprominenttothericearcherytargetinfluencetakethenitrogenfertilizer;Butthericealsoisoneofimportantcropsintheworld,ithasbecomethemodelcropinmonocotyledonsforgeneticandgenomicstudies.Thisexperimentincludingd
5、ynamicanalysisofthemainqualitycharacterswithfivejaponicavarietiesundertwonitrogenlevelsandQTLpreliminaryanalysiswith123RILstwopartsofcontents,itsmainfindingsmayinduceasfollows:1.Analysisofdynamicvarietyaboutricequalityindifferentnitrogenfertilizerlevels.Grai
6、nshape:Length/widthofthericegrainwerenotbasicchangeinNolevel,butunderN10levelassumeminishtrend.Asforthesamegroutingtime,varietieshaveobviousdifferentiaforlength/widthintwolevels.Thereinto,zhengfingyoulwasmost,huajin92wassecondly,theleastwasyanjin97.But,thesa
7、metrendsindifferentgroutingtime,SO,grainshapedifferentiahasbeenassumeingroutingprophasenotanaphase.Grainthickchangehavesamefiendduringgraingroutingundertwonitrogenlevels,alongwithgroutingcoursewereobviousbecamethickness.As25dbound,prophasefirerapidmorethanan
8、aphaseforgaininperday,also,N10levelmorethanNoDifferentgroutingtimehavedifferentrateofgainin嘶tlldifferentvarieties,thereinto,yanjin95wasmostintwolevels,0.72mm/dand1.00mm/drespectivelyduringpropha
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