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1、中國(guó)水稻科學(xué)(ChinJRiceSci),2013,27(5):553-558http://www.ricesci.cnDOI:10.3969/ji.ssn.1001G7216.2013.04.014553水稻條紋葉枯病的抗性與秈粳分化的相關(guān)性范方軍楊杰?王軍朱金燕李文奇仲維功(江蘇省農(nóng)業(yè)科學(xué)院糧食作物研究所,南京210014;?通訊聯(lián)系人,EGmail:yangjie1698@hotmail.com)CorrelationBetweenRiceStripeResistanceandindicaGjaponicaDifferentiationFANFan
2、gGjun,YANGJie?,WANGJun,ZHUJinGyan,LIWenGqi,ZHONGWeiGgong(InstituteofFoodCrops,JiangsuAcademyofAgriculturalSciences,Nanjing210014,China;?Correspondingauthor,EGmail:yangjie1698@hotmailc.om)FANFangjun,YANGJie,WANGJun,etal.CorrelationbetweenricestriperesistanceandindicaGjaponicadiffe
3、rentiaGtion.ChinJRiceSci,2013,27(5):553G558.Abstract:ThecorrelationbetweenresistancetoRicestripevirus(RSV)andindicaGjaponicadifferentiationof119ricelandracevarietieswasanalyzedbyusingindicaGjaponicadifferentiationindexesbasedontheInDelmolecularmarkersanalysis.FortyGeightvarieties
4、classifiedintoindicatypeareresistanttoRSV,and7indicalandracesand1indicaclinouslandracearealsoresistanttoRSV;however,twointermediatelandracesaresusceptibletoRSV.Inaddition,fiftyGninetypicaljaponicalandracesaresusceptibletoRSV.Thestatisticalanalysisindicatedthereexistedsignificantl
5、ynegativecorrelationbetweenestimatedindicagenefrequencyandtheRSVdiseaseincidence.TheseresultsshowthatthelandGracesharboringmoreindicagenearemoreresistanttoRSVdiseaseandtypicaljaponicalandracesallshowsusceptibilitytoRSV.Therefore,itwasspeculatedthattheRSVresistancegeneoriginatedfr
6、omindicavarieties.Keywords:ricestripevirusdisease;indicaGjaponicadifferentiation;indicagenefrequency范方軍,楊杰,王軍,等.水稻條紋葉枯病的抗性與秈G粳分化的相關(guān)性.中國(guó)水稻科學(xué),2013,27(5):553G558.摘要:利用國(guó)內(nèi)外的119份地方水稻品種資源材料通過InDel分子指數(shù)法分析水稻條紋葉枯病的抗性與秈粳分化的關(guān)系.在119份水稻品種中48份典型秈稻,其中47份抗水稻條紋葉枯病;7份秈稻和1份偏秈的水稻品種,也都抗條紋葉枯病;2份中間型的水稻品
7、種,不抗條紋葉枯病;2份粳型的水稻品種,抗條紋葉枯病;59份典型粳稻品種,都不抗水稻條紋葉枯病.相關(guān)性分析表明秈型基因頻率與水稻條紋葉枯病發(fā)病率呈極顯著負(fù)相關(guān).這些結(jié)果表明攜帶秈型基因頻率越高的水稻材料,對(duì)水稻條紋葉枯病的抗性越強(qiáng),而典型粳稻都表現(xiàn)為感病,推測(cè)水稻條紋枯病抗病基因可能起源于秈稻.關(guān)鍵詞:水稻條紋葉枯病;秈粳分化;秈型基因頻率中圖分類號(hào):S435?111?4+2;S511?023文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1001G7216(2013)05G0553G06水稻是世界重要的糧食作物,也是中國(guó)第一大淮流域的危害得到了有效控制.[1]糧食作物.水稻條
8、紋葉枯病是近年來危害江淮流在水稻條紋葉枯病的抗性資源鑒定、抗性遺傳域水稻生產(chǎn)的主