水稻紫叶性状遗传和基因定位的.研究

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1、reIatedtotheirgeneticbackgrounds．Itwasconcludedthattheinhel．itancemodeIofthepurplepigmentwasplplIplIplCiCi．2．ThepurplegeneandcontrolgeneweremappedintheBCF2populationofXianhongAandGuanghuil28fbundbyusingSSRmolecularmarkers-Theresultshowedasf．oUows：thepurplegenewasnankedbySSRmarl【ers

2、I己M587andRM584Ontheshortarmofchromosome6、订thageneticdistanceof3．1cMand2．2cM，respectiVely；whnethepurplecontrolgenewasnankedbyRM9andRM488onthelongarmofchmmosomel而thadistanceof1．2cMand0．8cM，nspectiVely．Thetwopairsofgenesweretentativebnamedp^andZp，1．3．Studiesonphysiologicalindexesoflea

3、fphotosynthesisandaginginthelatestageOfgrowthOfpurpleleafedmalesterilelineanditsFlhybridsweredoneandshowedthatthechlorophyUscontents，photosyntheticrate，solubleproteinandactivi够ofSoDofnagleafinthelategrowthstageofpurpleleafedmalesterilelinesXiahongA，ZhihongAandGuizhi-1Swerehighertha

4、nthecontroIsBoAandGD—lS，whneMDAcontentandactivi够ofPoDwe他lowerthanthecontrols．Thechlorophyncontents，photosyntheticrate，solubleproteincontent，MDAcontent，activityofSoDandPoDinthenagleafduringthelategrowthstageofFlhybridsbyuseofpurpleleafedmalester订elinesweresimiIartothoseofCKBoyou253，

5、notsignificantlydif＆rent．AUtheresultsshowedthattheleaff．unctionofpurpleIeafedmalesterilelinesXianhongA，ZhihongA，Guizhi-1SandtheirFlhybridsisnormalwithgoodphotosynthesis，noearlyaging，andtheI．eisnonegatiVeeffectontheagn口nomictraitsandyieldofIRl552andderiVedmalesterileHnesandFlhybrids

6、．Itisagooddonorofpurpleleafmarkf-orricebI．eedingpracticeandhasimportantusevalue．4．Throughhybridizationbetweenpurpleleal．edIRl552anddif五erentindicathree-linesterilemaintaine聃，two—Knesterilelines，theidealpurpIeleafmarkwasintroducedintothree-Uneandt．w’o—linemalesterilelines．Theresults

7、showedthatthepurpleIeafcharacternotonlycouIdbeintroducedintoindica锣peofthreeandtwolinessteriIeHnes，butalsocouldbeusedtOdeVelopbreedinggoals’purpleleaf．edthreeand抑olinessterilelines硝thgoodt1．ansferringresults．Sof．ar6Vepurpleleaf．edVthI．eeandtwolinesterileUneshaVebeendeVeloped，amongw

8、hichboth)【ianhongAandZhiho