Abstract
Resistance to Pseudocercosporella herpotrichoides (cause of eyespot) and Puccinia striiformis(cause of stripe rust) was evaluated in a germ plasm collection of Dasypyrum villosum (syn. Haynaldia villosa) and a set of disomic addition lines, a substitution, and a translocation line of D. villosum chromosomes in a wheat background. Three races of P. striiformis and a β-glucuronidase-transformed strain of Pseudocercosporella herpotrichoides were used to inoculate plants and evaluate disease reactions. Of the 115 D. villosum accessions tested, 33 (28.6%) were resistant to one or more races of Puccinia striiformis and 8 accessions were resistant to all races. All 219 accessions of D. villosum tested were resistant to Pseudocercosporella herpotrichoides and 158 (72%) of the accessions had lower β-glucuronidase activity than the resistant wheat line VPM-1. Most of the accessions of D. villosum resistant to the stripe rust pathogen originated from Greece; however, there was no distinction among origins for resistance to the eyespot pathogen. Chromosome 4V was confirmed to carry the gene for resistance to P. herpotrichoides. At least one gene for resistance to Puccinia striiformis was located on the short arm of chromosome 6V of D. villosum in the 6VS/6AL-translocation line; this gene was named Yr26.
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Claims 8
Claim · model-written summary
Thirty-three accessions resisted at least one stripe rust race.
- Taxon
- D. villosum
Dasypyrum villosume0 - Material
- accessionse0
- Interactor
- Puccinia striiformis
Puccinia striiformise0pathogen - Outcome
- resistant to one or more races of Puccinia striiformise0
- Value
- 33 (28.6%)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of the 115 D. villosum accessions tested, 33 (28.6%) were resistant to one or more races of Puccinia striiformis”
Claim · model-written summary
Eight accessions resisted all stripe rust races.
- Taxon
- Dasypyrum villosumDasypyrum villosumt0
- Material
- accessionse0
- Outcome
- resistant to all racese0
- Value
- 8 accessionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“8 accessions were resistant to all races”
t0“Dasypyrum villosum”
Claim · model-written summary
All 219 accessions resisted the eyespot pathogen.
- Taxon
- D. villosumDasypyrum villosume0
- Material
- accessionse0
- Interactor
- Pseudocercosporella herpotrichoides
Oculimacula yallundaee0pathogen - Outcome
- resistant to Pseudocercosporella herpotrichoidese0
- Value
- 219 accessionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All 219 accessions of D. villosum tested were resistant to Pseudocercosporella herpotrichoides”
Claim · model-written summary
A total of 158 accessions had lower reporter activity than resistant wheat VPM-1.
- Taxon
- Dasypyrum villosumDasypyrum villosumt0
- Material
- accessionse0
- Outcome
- β-glucuronidase activitye0
- Direction
- lowere0
- Value
- 158 (72%)e0
- Comparator
- resistant wheat line VPM-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“158 (72%) of the accessions had lower β-glucuronidase activity than the resistant wheat line VPM-1”
t0“Dasypyrum villosum”
Claim · model-written summary
Most stripe rust resistant accessions originated from Greece.
- Taxon
- D. villosumDasypyrum villosume0
- Outcome
- resistant to the stripe rust pathogene0
- Setting
- Greecee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most of the accessions of D. villosum resistant to the stripe rust pathogen originated from Greece”
Claim · model-written summary
Eyespot resistance did not differ among origins.
- Taxon
- Dasypyrum villosumDasypyrum villosumt0
- Outcome
- resistance to the eyespot pathogene0
- Direction
- no distinctione0
- Setting
- originse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no distinction among origins for resistance to the eyespot pathogen”
t0“Dasypyrum villosum”
Claim · model-written summary
Chromosome 4V carried an eyespot resistance gene.
- Taxon
- Dasypyrum villosumDasypyrum villosumt0
- Interactor
- P. herpotrichoidesOculimacula yallundaee0pathogen
- Gene
- Chromosome 4Ve0
- Outcome
- gene for resistance to P. herpotrichoidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chromosome 4V was confirmed to carry the gene for resistance to P. herpotrichoides”
t0“Dasypyrum villosum”
Claim · model-written summary
A stripe rust resistance gene named Yr26 was located on chromosome 6V short arm.
- Taxon
- D. villosumDasypyrum villosume0
- Material
- 6VS/6AL-translocation linee0
- Interactor
- Puccinia striiformisPuccinia striiformise0pathogen
- Gene
- Yr26e0
- Outcome
- gene for resistance to Puccinia striiformise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At least one gene for resistance to Puccinia striiformis was located on the short arm of chromosome 6V of D. villosum in the 6VS/6AL-translocation line; this gene was named Yr26”