Abstract
A total of twenty leaf rust resistance genes (Lr genes) were postulated in nine Egyptian wheat cultivars based on infection types (ITs) expressed on the tested cultivars by 72 Puccinia triticina pathotypes compared with the ITs expressed on the monogenic lines. The most carrier genes cultivars were Giza168 and Misr1 each may contain five genes i.e. Lr2c, 10, 18, 24, 41 and Lr3, 10, 19, 22b, 24, respectively. Five cultivars, Sakha94, Gemmeiza9, Gemmeiza10, Sids12 and Misr2 each probably contain four genes i.e. Lr9, 19, 29, 37; Lr18, 21, 24, 41; Lr3, 9, 19, 29; Lr9, 19, 26, 29 and Lr3, 10, 19, 26, respectively. Gemmeiza11 was the least cultivar carrying genes; it probably carries just two genes i.e. Lr24 and Lr41. The most postulated genes were Lr19 and Lr24, each postulated within five cultivars followed by Lr41 within four cultivars. Five Lr genes, Lr3, Lr9, Lr10, Lr26 and Lr29 each within three cultivars. The lowest postulated genes were Lr2c, Lr21, Lr22b and Lr37 each of them was postulated within only one cultivar. Five Lr genes, Lr9, Lr10, Lr19, Lr24 and Lr26 were identified by PCR-based molecular marker. The Lr9 gene was identified in cultivar Sids12 while, Lr10 was identified in cultivar Misr1. The Lr19 was present in two cultivars, Misr1 and Misr2. The Lr24 and Lr26 were absent in all the screened Egyptian cultivars. The obtained results for Lr9, Lr10, Lr19, Lr24 and Lr26 marker were in agreement with and confirm their identification by gene postulation. Markers for Lr9, Lr10 and Lr19 may be useful in marker-assisted breeding. Our findings showed the usefulness of the molecular marker in identifying leaf rust resistance genes in wheat cultivars, especially when used in conjunction with multipathotypes test at the pre-breeding stage. This approach may help understanding the wheat - P. triticina interaction and provide information to build an effective management program for leaf rust disease.
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Claims 20
Claim · model-written summary
Twenty leaf rust resistance genes were postulated in nine Egyptian wheat cultivars from infection types against 72 pathotypes.
- Taxon
- wheat
Triticum aestivume0 - Interactor
- Puccinia triticina
Puccinia triticinae0pathogen - Outcome
- leaf rust resistance genese0
- Value
- twentye0
- Comparator
- monogenic linese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A total of twenty leaf rust resistance genes (Lr genes) were postulated in nine Egyptian wheat cultivars based on infection types (ITs) expressed on the tested cultivars by 72 Puccinia triticina pathotypes compared with the ITs expressed on the monogenic lines.”
Claim · model-written summary
Giza168 may contain five resistance genes: Lr2c, 10, 18, 24 and 41.
- Taxon
- WheatTriticum aestivumt0
- Material
- Giza168e0
- Gene
- Lr2c, 10, 18, 24, 41e0
- Outcome
- may contain five genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most carrier genes cultivars were Giza168 and Misr1 each may contain five genes i.e. Lr2c, 10, 18, 24, 41 and Lr3, 10, 19, 22b, 24, respectively.”
t0“Wheat”
Claim · model-written summary
Misr1 may contain five resistance genes: Lr3, 10, 19, 22b and 24.
- Taxon
- WheatTriticum aestivumt0
- Material
- Misr1e0
- Gene
- Lr3, 10, 19, 22b, 24e0
- Outcome
- may contain five genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most carrier genes cultivars were Giza168 and Misr1 each may contain five genes i.e. Lr2c, 10, 18, 24, 41 and Lr3, 10, 19, 22b, 24, respectively.”
t0“Wheat”
Claim · model-written summary
Sakha94 probably contains Lr9, 19, 29 and 37.
- Taxon
- WheatTriticum aestivumt0
- Material
- Sakha94e0
- Gene
- Lr9, 19, 29, 37e0
- Outcome
- probably contain four genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Five cultivars, Sakha94, Gemmeiza9, Gemmeiza10, Sids12 and Misr2 each probably contain four genes i.e. Lr9, 19, 29, 37; Lr18, 21, 24, 41; Lr3, 9, 19, 29; Lr9, 19, 26, 29 and Lr3, 10, 19, 26, respectively.”
t0“Wheat”
Claim · model-written summary
Gemmeiza9 probably contains Lr18, 21, 24 and 41.
- Taxon
- WheatTriticum aestivumt0
- Material
- Gemmeiza9e0
- Gene
- Lr18, 21, 24, 41e0
- Outcome
- probably contain four genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Five cultivars, Sakha94, Gemmeiza9, Gemmeiza10, Sids12 and Misr2 each probably contain four genes i.e. Lr9, 19, 29, 37; Lr18, 21, 24, 41; Lr3, 9, 19, 29; Lr9, 19, 26, 29 and Lr3, 10, 19, 26, respectively.”
t0“Wheat”
Claim · model-written summary
Gemmeiza10 probably contains Lr3, 9, 19 and 29.
- Taxon
- WheatTriticum aestivumt0
- Material
- Gemmeiza10e0
- Gene
- Lr3, 9, 19, 29e0
- Outcome
- probably contain four genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Five cultivars, Sakha94, Gemmeiza9, Gemmeiza10, Sids12 and Misr2 each probably contain four genes i.e. Lr9, 19, 29, 37; Lr18, 21, 24, 41; Lr3, 9, 19, 29; Lr9, 19, 26, 29 and Lr3, 10, 19, 26, respectively.”
t0“Wheat”
Claim · model-written summary
Sids12 probably contains Lr9, 19, 26 and 29.
- Taxon
- WheatTriticum aestivumt0
- Material
- Sids12e0
- Gene
- Lr9, 19, 26, 29e0
- Outcome
- probably contain four genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Five cultivars, Sakha94, Gemmeiza9, Gemmeiza10, Sids12 and Misr2 each probably contain four genes i.e. Lr9, 19, 29, 37; Lr18, 21, 24, 41; Lr3, 9, 19, 29; Lr9, 19, 26, 29 and Lr3, 10, 19, 26, respectively.”
t0“Wheat”
Claim · model-written summary
Misr2 probably contains Lr3, 10, 19 and 26.
- Taxon
- WheatTriticum aestivumt0
- Material
- Misr2e0
- Gene
- Lr3, 10, 19, 26e0
- Outcome
- probably contain four genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Five cultivars, Sakha94, Gemmeiza9, Gemmeiza10, Sids12 and Misr2 each probably contain four genes i.e. Lr9, 19, 29, 37; Lr18, 21, 24, 41; Lr3, 9, 19, 29; Lr9, 19, 26, 29 and Lr3, 10, 19, 26, respectively.”
t0“Wheat”
Claim · model-written summary
Gemmeiza11 probably carries only Lr24 and Lr41, the fewest genes among the cultivars.
- Taxon
- WheatTriticum aestivumt0
- Material
- Gemmeiza11e0
- Gene
- Lr24 and Lr41e0
- Outcome
- carries just two genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gemmeiza11 was the least cultivar carrying genes; it probably carries just two genes i.e. Lr24 and Lr41.”
t0“Wheat”
Claim · model-written summary
Lr19 and Lr24 were each postulated in five cultivars.
- Taxon
- WheatTriticum aestivumt0
- Gene
- Lr19 and Lr24e0
- Outcome
- postulated within five cultivarse0
- Value
- fivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most postulated genes were Lr19 and Lr24, each postulated within five cultivars followed by Lr41 within four cultivars.”
t0“Wheat”
Claim · model-written summary
Lr41 was postulated in four cultivars.
- Taxon
- WheatTriticum aestivumt0
- Gene
- Lr41e0
- Outcome
- within four cultivarse0
- Value
- foure0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most postulated genes were Lr19 and Lr24, each postulated within five cultivars followed by Lr41 within four cultivars.”
t0“Wheat”
Claim · model-written summary
Lr3, Lr9, Lr10, Lr26 and Lr29 were each postulated in three cultivars.
- Taxon
- WheatTriticum aestivumt0
- Gene
- Lr3, Lr9, Lr10, Lr26 and Lr29e0
- Outcome
- each within three cultivarse0
- Value
- threee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Five Lr genes, Lr3, Lr9, Lr10, Lr26 and Lr29 each within three cultivars.”
t0“Wheat”
Claim · model-written summary
Lr2c, Lr21, Lr22b and Lr37 were each postulated in only one cultivar.
- Taxon
- WheatTriticum aestivumt0
- Gene
- Lr2c, Lr21, Lr22b and Lr37e0
- Outcome
- postulated within only one cultivare0
- Value
- onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest postulated genes were Lr2c, Lr21, Lr22b and Lr37 each of them was postulated within only one cultivar.”
t0“Wheat”
Claim · model-written summary
The abstract reports PCR-marker identification of five genes, Lr9, Lr10, Lr19, Lr24 and Lr26.
- Taxon
- WheatTriticum aestivumt0
- Gene
- Lr9, Lr10, Lr19, Lr24 and Lr26e0
- Outcome
- identified by PCR-based molecular markere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Five Lr genes, Lr9, Lr10, Lr19, Lr24 and Lr26 were identified by PCR-based molecular marker.”
t0“Wheat”
Claim · model-written summary
Lr9 was marker-identified in Sids12.
- Taxon
- WheatTriticum aestivumt0
- Material
- Sids12e0
- Gene
- Lr9e0
- Outcome
- identifiede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Lr9 gene was identified in cultivar Sids12 while, Lr10 was identified in cultivar Misr1.”
t0“Wheat”
Claim · model-written summary
Lr10 was marker-identified in Misr1.
- Taxon
- WheatTriticum aestivumt0
- Material
- Misr1e0
- Gene
- Lr10e0
- Outcome
- identifiede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Lr9 gene was identified in cultivar Sids12 while, Lr10 was identified in cultivar Misr1.”
t0“Wheat”
Claim · model-written summary
Lr19 was present in Misr1 and Misr2.
- Taxon
- WheatTriticum aestivumt0
- Material
- Misr1 and Misr2e0
- Gene
- Lr19e0
- Outcome
- presente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Lr19 was present in two cultivars, Misr1 and Misr2.”
t0“Wheat”
Claim · model-written summary
Lr24 and Lr26 were absent in all screened Egyptian cultivars.
- Taxon
- WheatTriticum aestivumt0
- Gene
- Lr24 and Lr26e0
- Outcome
- absente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Lr24 and Lr26 were absent in all the screened Egyptian cultivars.”
t0“Wheat”
Claim · model-written summary
The authors report marker agreement with gene postulation and usefulness of molecular markers combined with multipathotype tests at pre-breeding.
- Taxon
- wheatTriticum aestivume1
- Outcome
- identifying leaf rust resistance genese1
- Qualifier
- especially when used in conjunction with multipathotypes test at the pre-breeding stagee1
- Comparator
- gene postulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The obtained results for Lr9, Lr10, Lr19, Lr24 and Lr26 marker were in agreement with and confirm their identification by gene postulation.”
e1“Our findings showed the usefulness of the molecular marker in identifying leaf rust resistance genes in wheat cultivars, especially when used in conjunction with multipathotypes test at the pre-breeding stage.”
Claim · model-written summary
Markers for Lr9, Lr10 and Lr19 may aid marker-assisted breeding, and the combined approach may inform wheat–pathogen interactions and leaf rust management.
- Taxon
- wheatTriticum aestivume1
- Interactor
- P. triticinaPuccinia triticinae1pathogen
- Gene
- Lr9, Lr10 and Lr19e0
- Outcome
- marker-assisted breedinge0
- Qualifier
- may help understanding the wheat - P. triticina interaction and provide information to build an effective management program for leaf rust diseasee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Markers for Lr9, Lr10 and Lr19 may be useful in marker-assisted breeding.”
e1“This approach may help understanding the wheat - P. triticina interaction and provide information to build an effective management program for leaf rust disease.”