Genetic variation of aggressiveness in individual field populations of Fusarium graminearum and Fusarium culmorum tested on young plants of winter rye

被引:49
作者
Miedaner, T [1 ]
Schilling, AG [1 ]
机构
[1] UNIV HOHENHEIM,INST PLANT BREEDING SEED SCI & POPULAT GENET 350,D-70593 STUTTGART,GERMANY
关键词
foot rot; fungal populations; Fusarium culmorum; Fusarium graminearum; head blight; population structure; seedling blight;
D O I
10.1007/BF01877051
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Fusarium graminearum and F. culmorum are capable of infecting winter cereals at all growth stages. From natural field epidemics of wheat head blight and rye foot rot, three fungal populations were collected with 21, 38 and 54 isolates, respectively; their aggressiveness was analyzed in comparison to collections of F, graminearum (25 isolates) and F culmorum (70 isolates) that represent a wide range of geographical locations and host species. All isolates were tested for aggressiveness on young plants of winter rye in the greenhouse and scored for disease severity on a 1-9 scale. Disease ratings of individual isolates ranged from 1.5 to 5.7 indicating quantitative variation of aggressiveness. Genotypic variance was highest in the two Fusarium collections. No substantial difference was found in the amount of genotypic variation between F, graminearum and F culmorum. Individual field populations revealed 57-66% of the total genotypic variation of the collections. This implies a high degree of diversity of aggressiveness within single field populations of F. graminearum and F. culmorum causing natural epidemics.
引用
收藏
页码:823 / 830
页数:8
相关论文
共 40 条
[31]   GENOTYPE X STRAIN INTERACTIONS FOR RESISTANCE TO FUSARIUM HEAD BLIGHT CAUSED BY FUSARIUM-CULMORUM IN WINTER-WHEAT [J].
SNIJDERS, CHA ;
VANEEUWIJK, FA .
THEORETICAL AND APPLIED GENETICS, 1991, 81 (02) :239-244
[32]   THE INHERITANCE OF RESISTANCE TO HEAD BLIGHT CAUSED BY FUSARIUM-CULMORUM IN WINTER-WHEAT [J].
SNIJDERS, CHA .
EUPHYTICA, 1990, 50 (01) :11-18
[33]   HEAD BLIGHTING POTENTIAL OF FUSARIUM SPECIES ASSOCIATED WITH SPRING WHEAT HEADS [J].
STACK, RW ;
MCMULLEN, MP .
CANADIAN JOURNAL OF PLANT PATHOLOGY-REVUE CANADIENNE DE PHYTOPATHOLOGIE, 1985, 7 (01) :79-82
[34]  
UTZ HF, 1994, PLABSTAT EIN COMPUTE
[35]  
VANDERPLANK JE, 1984, DISEASE RESISTANCE P
[36]   ASSESSING NONSPECIFICITY OF RESISTANCE IN WHEAT TO HEAD BLIGHT CAUSED BY INOCULATION WITH EUROPEAN STRAINS OF FUSARIUM-CULMORUM, F-GRAMINEARUM AND F-NIVALE USING A MULTIPLICATIVE MODEL FOR INTERACTION [J].
VANEEUWIJK, FA ;
MESTERHAZY, A ;
KLING, CI ;
RUCKENBAUER, P ;
SAUR, L ;
BURSTMAYR, H ;
LEMMENS, M ;
KEIZER, LCP ;
MAURIN, N ;
SNIJDERS, CHA .
THEORETICAL AND APPLIED GENETICS, 1995, 90 (02) :221-228
[37]   OCCURRENCE OF FUSARIUM SPECIES IN SCABBY WHEAT FROM MINNESOTA AND THEIR PATHOGENICITY TO WHEAT [J].
WILCOXSON, RD ;
KOMMEDAHL, T ;
OZMON, EA ;
WINDELS, CE .
PHYTOPATHOLOGY, 1988, 78 (05) :586-589
[38]   DECIMAL CODE FOR GROWTH STAGES OF CEREALS [J].
ZADOKS, JC ;
CHANG, TT ;
KONZAK, CF .
WEED RESEARCH, 1974, 14 (06) :415-421
[39]  
[No title captured]
[40]  
[No title captured]