Abstract
Vegetative compatibility of 94 isolates of Colletotrichum coccodes from Australia originating from potato, soil, and a weed (Solanum esuriale) was tested using nitrate-nonutilizing (nit) mutants. Isolates distributed to six vegetative compatibility groups (VCGs), five of them multimember (24.5, 23.4, 13.8, 12.8, and 7.5% distribution) and only one composed of two isolates (2.1%); 15.9% of them were not assigned to any of the VCGs. Aggressiveness of 51 isolates representing all six VCGs was tested by mature green tomato bioassay: isolates assigned to AUS-VCG-4 were the most aggressive and those in AUS-VCG-3 the least (P < 0.05). Isolates from warmer climates and lower latitudes were more aggressive (P < 0.05). In addition, we report for the first time complementations between isolates from Australia (AUS); North America (NA); and Israel, The Netherlands, Scotland, France, Germany (EU/I). Isolates assigned to AUS-VCG-4 anastomosed with isolates assigned to EU/I-VCG-7 and NA-VCG-5 (which also anastomosed with each other). Isolates assigned to EU/I-VCG-6 anastomosed with isolates assigned to NA-VCG-2 and isolates assigned to AUS-VCG-2 anastomosed with isolates assigned to EU/I-VCG-2. The linkage between subpopulations could result from the limited exchange of seed tubers among continents, or could be due to, for instance, gene flow, selection, or a limited number of polymorphic vegetative incompatibility genes.
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Claims 5
Claim · model-written summary
Colletotrichum isolates formed six vegetative compatibility groups.
- Taxon
- tomato
Solanum lycopersicume1 - Interactor
- Colletotrichum coccodes
Colletotrichum coccodest0pathogen - Outcome
- six vegetative compatibility groups (VCGs)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolates distributed to six vegetative compatibility groups (VCGs), five of them multimember (24.5, 23.4, 13.8, 12.8, and 7.5% distribution) and only one composed of two isolates (2.1%); 15.9% of them were not assigned to any of the VCGs.”
e1“mature green tomato bioassay”
t0“Colletotrichum coccodes”
Claim · model-written summary
AUS-VCG-4 isolates were most aggressive on mature green tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- AUS-VCG-4e0
- Interactor
- Colletotrichum coccodesColletotrichum coccodest0pathogen
- Outcome
- most aggressivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aggressiveness of 51 isolates representing all six VCGs was tested by mature green tomato bioassay: isolates assigned to AUS-VCG-4 were the most aggressive and those in AUS-VCG-3 the least (P < 0.05).”
t0“Colletotrichum coccodes”
Claim · model-written summary
AUS-VCG-3 isolates were least aggressive on mature green tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- AUS-VCG-3e0
- Interactor
- Colletotrichum coccodesColletotrichum coccodest0pathogen
- Outcome
- leaste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aggressiveness of 51 isolates representing all six VCGs was tested by mature green tomato bioassay: isolates assigned to AUS-VCG-4 were the most aggressive and those in AUS-VCG-3 the least (P < 0.05).”
t0“Colletotrichum coccodes”
Claim · model-written summary
Isolates from warmer climates and lower latitudes were more aggressive.
- Taxon
- tomatoSolanum lycopersicume1
- Interactor
- Colletotrichum coccodesColletotrichum coccodest0pathogen
- Outcome
- more aggressivee0
- Direction
- moree0
- Setting
- warmer climates and lower latitudese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolates from warmer climates and lower latitudes were more aggressive (P < 0.05).”
e1“mature green tomato bioassay”
t0“Colletotrichum coccodes”
Claim · model-written summary
Australian, North American, and European/Israeli isolates showed complementation.
- Taxon
- potato
Solanum tuberosume1 - Interactor
- Colletotrichum coccodesColletotrichum coccodest0pathogen
- Outcome
- complementationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In addition, we report for the first time complementations between isolates from Australia (AUS); North America (NA); and Israel, The Netherlands, Scotland, France, Germany (EU/I).”
e1“originating from potato, soil, and a weed (Solanum esuriale)”
t0“Colletotrichum coccodes”