Occurrence of perithecia of<i>Gibberella fujikuroi</i>mating population A (<i>Fusarium moniliforme</i>) on maize stubble in northern Vietnam

Summerell, Brett A.; Burgess, L. W.; Bullock, Stephen H.; Backhouse, David; Tri, Nguyen Duc

doi:10.1080/00275514.1998.12026982

Cited by 6 publications

(1 citation statement)

References 16 publications

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“…verticillioides, Fusarium fujikuroi Nirenberg and F. subglutinans, where perithecia of these species were found associated with host material in the field (Edwards, 1935;Egan et al, 1997;Rai & Upadhyay, 1982;Summerell et al, 1998;Watanabe & Umehara, 1977).…”

Section: Ta B L Ementioning

confidence: 99%

Identification and genetic diversity ofFusarium sacchariassociated with pokkah boeng disease of sugarcane in Northeast Brazil

Carvalho

Rocha

Melo

et al. 2022

Journal of Phytopathology

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Isolates from the Fusarium fujikuroi species complex, mainly F. sacchari, have been reported to be the causal agents of pokkah boeng in sugarcane in Brazil. However, inadequate information was available on the occurrence and genetic diversity of F. sacchari in Northeast Brazil, which is a limiting factor on management. Thus, isolates of F. subglutinans sensu lato from sugarcane plants with symptoms of pokkah boeng were evaluated using the sexual cross-fertility to determine species. All the isolates produced black perithecia when they were crossed with the test isolates of F. sacchari.Three weeks after the crossing, the formation of fertile ascospores cirri was observed.Thirty-four isolates were self-sterile hermaphrodites, while 21 were fertile only as males. Five isolates were homothallic. The effective size [N e(f) ] of the population as a function of the frequency of hermaphrodites and female sterile strains was 95.5%.The F. sacchari isolates were separated into four genetic groups independent of geographic location. The mean of polymorphism among all populations was 79%, and the average unbiased genetic diversity (uh) was considered moderate (0.31). This study in addition to confirming that F. sacchari as the main species associated with pokkah boeng in sugarcane in Northeast Brazil, reveals the relationship of mating type and genetic diversity of F. sacchari. The unrestricted gene flow between regions is probably the best explanation for the low geographic correlation. This knowledge will help in the adoption of management measures with fungicides or resistant cultivars.

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Section: Ta B L Ementioning

confidence: 99%

Identification and genetic diversity ofFusarium sacchariassociated with pokkah boeng disease of sugarcane in Northeast Brazil

Carvalho

Rocha

Melo

et al. 2022

Journal of Phytopathology

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Female fertility and mating type distribution in a Philippine population ofFusarium verticillioides

Cumagun

2008

J Appl Genet

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Fusarium verticillioides is a common causal agent of maize ear rot in the Philippines. Eighty isolates were collected from healthy and infected maize cobs from Laguna province. Fifty isolates crossed with one of the mating type A testers. The ratio of MATA-1:MATA-2 is 27:23, which follows a Mendelian ratio of 1:1. The effective population number, Ne, was determined by mating type and male/hermaphrodite polymorphisms. The effective population number for mating type, Ne mt, is 81% of the count (total population), and that for male/hermaphrodite status, Ne f, is 36-42% of the count (total population). Sexual reproduction in Philippine isolates of F. verticillioides does not occur frequently, compared to F. verticillioides in other regions of the world.

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Fusarium udum revisited: a common, but poorly understood member of the Fusarium fujikuroi species complex

et al. 2018

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Occurrence of perithecia ofGibberella fujikuroimating population A (Fusarium moniliforme) on maize stubble in northern Vietnam

Cited by 6 publications

References 16 publications

Identification and genetic diversity ofFusarium sacchariassociated with pokkah boeng disease of sugarcane in Northeast Brazil

Identification and genetic diversity ofFusarium sacchariassociated with pokkah boeng disease of sugarcane in Northeast Brazil

Female fertility and mating type distribution in a Philippine population ofFusarium verticillioides

Fusarium udum revisited: a common, but poorly understood member of the Fusarium fujikuroi species complex

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