植物保护
植物保護
식물보호
Plant Protection
2015年
5期
188-191
,共4页
黄苗苗%李亚凯%黄瑾%贾秋珍%孙振宇%张勃%王晓明%王万军%曹世勤%金社林
黃苗苗%李亞凱%黃瑾%賈鞦珍%孫振宇%張勃%王曉明%王萬軍%曹世勤%金社林
황묘묘%리아개%황근%가추진%손진우%장발%왕효명%왕만군%조세근%금사림
冬小麦%‘兰天 23 号’%条锈病%遗传分析
鼕小麥%‘蘭天 23 號’%條鏽病%遺傳分析
동소맥%‘란천 23 호’%조수병%유전분석
winter wheat%‘Lantian 23’%stripe rust%inheritance of resistance
2014年在甘肃省农业科学院植物保护研究所兰州温室,进行了‘兰天23号’/‘铭贤169’组合的亲本及其F1、F2、BC1代对条锈菌主要流行小种 CYR32、CYR33及新菌系 G22-9的遗传分析。结果表明,接种 CYR33,F2代植株抗感分离比为144R∶54S,符合3R∶1S 的理论比值；接种 CYR32,F2代植株抗感分离比为62R∶22S,符合3R∶1S的理论比值；接种 G22-9,F2代植株抗感分离比为85R∶24S,符合3R∶1S 的理论比值；F1代植株对供试菌系均表现免疫,BC1代植株抗感分离比均符合1R∶1S 的理论比值,表明‘兰天23号’对3个供试条锈菌系的抗病性均由1对显性抗性基因控制。通过系谱分析推知,该抗病基因来源于抗病亲本‘SXAF4-7’。
2014年在甘肅省農業科學院植物保護研究所蘭州溫室,進行瞭‘蘭天23號’/‘銘賢169’組閤的親本及其F1、F2、BC1代對條鏽菌主要流行小種 CYR32、CYR33及新菌繫 G22-9的遺傳分析。結果錶明,接種 CYR33,F2代植株抗感分離比為144R∶54S,符閤3R∶1S 的理論比值；接種 CYR32,F2代植株抗感分離比為62R∶22S,符閤3R∶1S的理論比值；接種 G22-9,F2代植株抗感分離比為85R∶24S,符閤3R∶1S 的理論比值；F1代植株對供試菌繫均錶現免疫,BC1代植株抗感分離比均符閤1R∶1S 的理論比值,錶明‘蘭天23號’對3箇供試條鏽菌繫的抗病性均由1對顯性抗性基因控製。通過繫譜分析推知,該抗病基因來源于抗病親本‘SXAF4-7’。
2014년재감숙성농업과학원식물보호연구소란주온실,진행료‘란천23호’/‘명현169’조합적친본급기F1、F2、BC1대대조수균주요류행소충 CYR32、CYR33급신균계 G22-9적유전분석。결과표명,접충 CYR33,F2대식주항감분리비위144R∶54S,부합3R∶1S 적이론비치；접충 CYR32,F2대식주항감분리비위62R∶22S,부합3R∶1S적이론비치；접충 G22-9,F2대식주항감분리비위85R∶24S,부합3R∶1S 적이론비치；F1대식주대공시균계균표현면역,BC1대식주항감분리비균부합1R∶1S 적이론비치,표명‘란천23호’대3개공시조수균계적항병성균유1대현성항성기인공제。통과계보분석추지,해항병기인래원우항병친본‘SXAF4-7’。
The winter wheat variety ‘Lantian 23’is an important cultivar in Gansu Province,China.It was used as male parent and hybridized with the susceptible cultivar ‘Mingxian 1 69’at Gangu Testing Station,Institute of Plant Protection,Gansu Academy of Agricultural Sciences (IPP,GAAS).To study the resistant inheritance of wheat variety ‘Lantian 23’to stripe rust at seedling stage,the P1 ,P2 ,F1 ,F2 and BC1 populations of the crosses with susceptible variety ‘Mingxian 1 69’were inoculated in Lanzhou greenhouses in IPP of GAAS with three races (isolates)of Puccinia striiformis f.sp.tritici ,including CYR33,CYR32,and G22-9.The results showed that the segregation ratio for the cross of ‘Lantian 23 ’and ‘Mingxian 1 69 ’was 144∶54 in F2 plants when tested with CYR33,which was accorded with the expected value for 3R∶1S by Chi-square (χ2 )testing for probability of goodness fit.When tested with CYR32 and G22-9,the segregation ratio for the cross of ‘Lantian 23 ’and‘Mingxian 1 69’were 62∶22 and 85∶24,also accorded with the expected value for 3R∶1S by Chi-square (χ2 )tes-ting for probability of goodness fit.When tested with CYR33,CYR32,and G22-9,F1 populations were immune, and BC1 populations were accorded with the expected value for 1R∶1S.The results indicated that the resistance of wheat variety ‘Lantian 23’was controlled by one dominant gene to CYR33,CYR32 and G22-9.According to pedigree analysis of winter wheat variety ‘Lantian 23’,the dominant resistance gene may come from the female parent ‘SXAF4-7’.
