秈稻恢復(fù)系對褐飛虱和白背飛虱的抗性遺傳分析.pdf

1、浙江大學(xué)碩士學(xué)位論文秈稻恢復(fù)系對褐飛虱和白背飛虱的抗性遺傳分析姓名：張金鋒申請學(xué)位級別：碩士專業(yè)：作物遺傳育種指導(dǎo)教師：薛慶中20040501AbstractThebrownplanthopperNilaparvatalugens(St01)andwhitebackedplanthopper，Sogatellafurc!fer口，eachofthemisoneofthemostseriousinsectpestsofrice(Oryza

2、sativaL)throughoutAsiahasposedaseverethreatticeproductioninAsiaOneofthemostsafeeconomicalandefficientstrategiestocontrolriceplanthopperisapplicationofvarietalresistanceThegeneticanalysisbetweentheresistancetobrownplantho

3、pperandtheresistancetowhitebackedplanthopperwerecarriedoutusing3restorerlinesofindicarice，2malesterilitylinesandtheirprogenies，whichprovidesatheoreticalguidanceforpracticeofplanthopperresistancebreedingprogramOnthesameti

4、me，somephysiologicalchangesofriceplantsinfestedbythebrownplanthopperandwhitebackedplanthopperwereanalyzedrespectively，whichwascarriedoutusingsuperoxidedismutase(SOD)，peroxidase(POD)andcatalase(CAT)asindicatorsItwasaprima

5、ryattempttodirectinsect—resistancebreedingusingplantphysiologyThemainresultsaresummarizedasbelow：1Basedontheresistancetesttobrownplanthopperandwhitebackedplanthopper，theinheritanceofresistancetObrownplanthopperandwhiteba

6、ckedplanthopperwereanalyzedusing3antherculturalrestorerlinesofindicarice(TE358，TE363，TE367)，twomalesterilitylines(II32A，XieqingzaoA)andtheirhybridcombinationFi，F(xiàn)2，BCIFlgenerationsAllofthreerestorerlinesofindicaricewerefo

7、undtOhaveasingledominantgeneforresistancetowhitegbackedplanthoppermadasinglerecessivegeneforresistancetobrownplanthopper，whichsegregateindependentlyofeachotherTheresultsprovideagoodgermplasmsandtheoreticalguidanceforthep

8、racticeofboththeplanthoppers—resistancebreedingprogram2TheweightofhoneydewexcretedbyBPHandWBPHweremeasuredAfterinfestation，theactivitychangesofimportantenzymeinactiveoxygeneliminationsystemweremostlystudiedTheresultsshow

9、edthatBPHexcretedmorehoneydewthanWBPHfeedingonthesamericeplant，whichimpliesthatBPHdoesgrateharmonricethanWBPHdoes，TherearesignificantdifferencebetweentheweightofhoneydewexcretedbyBPHonTNIandonresistantricevarieties，itisc