Abstract
Domesticated chickpea (Cicer arietinum) and its wild relative C. judaicum grow in sympatric distribution in Israel and both are susceptible to Ascochyta blight caused by Didymella rabiei. C. arietinum was grown for millennia in drier and hotter Levantine spring conditions while C. judaicum grows in the wetter and milder winters. Accordingly, it is possible that D. rabiei isolates originated from C. arietinum are adjusted to the less favorable spring conditions. Here, 60 isolates from both origins were tested in vitro for their hyphal growth at 15 and 25 degrees C. Isolates from C. arietinum had a significantly larger colony area at 25 degrees C than at 15 degrees C (P < 0.001) while no such differences were detected between isolates from C. judaicum. D. rabiei isolates from wild and domesticated origins were used to inoculate nine C. judaicum accessions and two domesticated chickpea cultivars and their aggressiveness patterns were determined using five measures. On domesticated chickpea, isolates from domesticated origin were significantly more aggressive in four out of the five aggressiveness measures than isolates from wild origin. On C. judaicum, isolates from wild origin were generally more aggressive than isolates from domesticated origin. The results suggest that the habitat segregation between wild and domesticated Cicer influences the pathogens ecological affinities and their aggressiveness patterns.
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Claims 4
Claim · model-written summary
Domesticated-origin isolates had larger colonies at 25 than 15 degrees C.
- Taxon
- C. arietinum
Cicer arietinume0t0 - Interactor
- Didymella rabiei
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Ascochyta rabieie0t0pathogen
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Isolates from C. arietinum had a significantly larger colony area at 25 degrees C than at 15 degrees C (P < 0.001)”
t0“Different Ecological Affinities and Aggressiveness Patterns Among Didymella rabiei Isolates from Sympatric Domesticated Chickpea and Wild Cicer judaicum”
Claim · model-written summary
Wild-origin isolates showed no colony-area difference between temperatures.
- Taxon
- C. judaicumCicer judaicume0t0
- Interactor
- Didymella rabieiAscochyta rabieie0t0pathogen
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no such differences were detected between isolates from C. judaicum”
t0“Different Ecological Affinities and Aggressiveness Patterns Among Didymella rabiei Isolates from Sympatric Domesticated Chickpea and Wild Cicer judaicum”
Claim · model-written summary
On domesticated chickpea, domesticated-origin isolates were more aggressive on four of five measures.
- Interactor
- Didymella rabieiAscochyta rabieie0t0pathogen
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On domesticated chickpea, isolates from domesticated origin were significantly more aggressive in four out of the five aggressiveness measures than isolates from wild origin”
t0“Different Ecological Affinities and Aggressiveness Patterns Among Didymella rabiei Isolates from Sympatric Domesticated Chickpea and Wild Cicer judaicum”
Claim · model-written summary
On wild Cicer, wild-origin isolates were generally more aggressive.
- Taxon
- C. judaicumCicer judaicume0t0
- Interactor
- Didymella rabieiAscochyta rabieie0t0pathogen
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On C. judaicum, isolates from wild origin were generally more aggressive than isolates from domesticated origin”
t0“Different Ecological Affinities and Aggressiveness Patterns Among Didymella rabiei Isolates from Sympatric Domesticated Chickpea and Wild Cicer judaicum”