学科分类
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10 个结果
  • 简介:米饭heading-date-related异种从60Co被孤立--Zhejing22的ray-induced变化水池,在浙江省的常规装饰用的梨树栽培变种,中国。异种被几乎20d的一个推迟的标题日期比野类型植物长描绘。基因分析表明变化被一个单个原子编码控制作为HD(t)被设计的后退的基因(标题日期尝试性地)。孤立HD(t)基因,一条基于地图的克隆途径用植物从在hd(t)异种(装饰用的梨树)之间的十字导出的479F2变异的个人被采用??

  • 标签: 突变基因 精细定位 标题 水稻 鉴定 粳稻品种
  • 简介:Grainyieldandheadingdatearekeyfactorsdeterminingthecommercialpotentialofaricevariety.Mappingofquantitativetraitloci(QTLs)inricehasbeenadvancedfromprimarymappingtogenecloning,andheadingdateandyieldtraitshavealwaysattractedthegreatestattention.Inthisreview,genomicdistributionofQTLsforheadingdatedetectedinpopulationsderivedfromintra-specificcrossesofAsiancultivatedrice(Oryzasativa)wassummarized,andtheirrelationshipwiththegeneticcontrolofyieldtraitswasanalyzed.TheinformationcouldbeusefulintheidentificationofQTLsforheadingdateandyieldtraitsthatarepromisingfortheimprovementofricevarieties.

  • 标签: 水稻品种 产量性状 遗传控制 抽穗期 数量性状位点 QTLS
  • 简介:Withahigherpolyaminerice(indicavarietyJinlingxiang)asexperimentalmaterial,thechangesincontentsandcomponentsofpolyamines(PAs)inricegrainsafterharvestingwereinvestigatedunderthetreatmentsbysprayingthepaniclesandflagleavesofricewithPAssynthesisinhibitors,D-Arg(0.5,1.0,1.5and2.0mmol/L),methylglyoxalbis-guanylhydrazone(MGBG)(0.1,0.5,1.0and1.5mmol/L)andcyclohexylamine(CHA)(1.0,5.0,10.0,15.0and20.0mmol/L),attheheading,floweringandgrainfillingstages.TheinhibitionofD-ArgonthecontentsoffreeandboundPAsanditstotalamountsinricegrainswassignificant,especiallytreatedatthefloweringandgrainfillingstages.TreatmentswithMGBGandCHAaffectedmainlythecomponentsofPAs,andtheireffectsonthetotalamountsofPAswerenotsignificantexceptMGBGatthefloweringstageandCHAatbothheadingandfloweringstages.

  • 标签: 水稻 聚胺 抑制剂 PAS 喷雾处理