Abstract
GG), belonging to the secondary gene pool of wheat, is known to carry resistance to many diseases. Though some disease resistance genes were reported from T. timopheevii, the closest wild relative of T. militinae, there are no reports from T. militinae. Twenty-one T. militinae Derivatives (TMD lines) developed at the Division of Genetics, IARI, New Delhi, were evaluated for leaf and stripe rusts at seedling and adult plant stages. Eight TMD lines (6-4, 6-5, 11-6, 12-4, 12-8, 12-12, 13-7 and 13-9) showed seedling resistance to both leaf and stripe rusts while six TMD lines (7-5, 7-6, 11-5, 13-1, 13-3 and 13-4) showed seedling resistance to leaf rust but adult plant resistance to stripe rust and three TMD lines (9-1, 9-2 and 15) showed seedling resistance to leaf rust but susceptibility to stripe rust. Three TMD lines (2-7, 2-8 and 6-1) with adult plant resistance to leaf and stripe rusts were found to carry the known gene Lr34/Yr18. Ten TMD lines (7-5, 7-6, 9-1, 9-2, 11-5, 11-6, 12-12, 12-4, 12-8, and 15) with seedling resistance to leaf rust, showing absence of known genes Lr18 and Lr50 with linked markers requires further confirmation by the test of allelism studies. As not a single stripe rust resistance gene has been reported from T. militinae or its close relative T. timpopheevii, all the 8 TMD lines (6-4, 6-5, 11-6,12-4, 12-8, 12-12, 13-7 and 13-9) identified of carrying seedling resistance to stripe rust and 3 TMD lines (13-1, 13-3 and 13-4) identified of carrying adult plant resistance to stripe rust are expected to carry unknown genes. Also, all the TMD lines were found to be cytologically stable and thus can be used in inheritance and mapping studies.
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Claims 8
Claim · model-written summary
Eight TMD lines resisted both rusts as seedlings.
- Taxon
- Triticum militinae
_Zhuk._-_Timopheev's_wheat_-_TRTI_-_Tracey_Slotta_%40_USDA-NRCS_PLANTS_Database.jpg?width=60)
Triticum timopheevii subsp. timopheeviit0 - Material
- TMD linese0
- Organ / stage
- seedlinge0
- Outcome
- resistance to both leaf and stripe rustse0
- Value
- Eighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Zhuk._-_Timopheev's_wheat_-_TRTI_-_Tracey_Slotta_%40_USDA-NRCS_PLANTS_Database.jpg?width=500)
Verbatim
e0“Eight TMD lines (6-4, 6-5, 11-6, 12-4, 12-8, 12-12, 13-7 and 13-9) showed seedling resistance to both leaf and stripe rusts”
t0“Triticum militinae”
Claim · model-written summary
Six TMD lines resisted leaf rust as seedlings and stripe rust as adult plants.
- Taxon
- Triticum militinaeTriticum timopheevii subsp. timopheeviit0
- Material
- TMD linese0
- Outcome
- seedling resistance to leaf rust but adult plant resistance to stripe ruste0
- Value
- sixe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six TMD lines (7-5, 7-6, 11-5, 13-1, 13-3 and 13-4) showed seedling resistance to leaf rust but adult plant resistance to stripe rust”
t0“Triticum militinae”
Claim · model-written summary
Three lines resisted leaf rust as seedlings but were susceptible to stripe rust.
- Taxon
- Triticum militinaeTriticum timopheevii subsp. timopheeviit0
- Material
- TMD linese0
- Outcome
- seedling resistance to leaf rust but susceptibility to stripe ruste0
- Value
- threee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three TMD lines (9-1, 9-2 and 15) showed seedling resistance to leaf rust but susceptibility to stripe rust”
t0“Triticum militinae”
Claim · model-written summary
Three adult-plant resistant lines carried Lr34/Yr18.
- Taxon
- Triticum militinaeTriticum timopheevii subsp. timopheeviit0
- Material
- TMD linese0
- Gene
- Lr34/Yr18e0
- Outcome
- adult plant resistance to leaf and stripe rustse0
- Value
- Threee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three TMD lines (2-7, 2-8 and 6-1) with adult plant resistance to leaf and stripe rusts were found to carry the known gene Lr34/Yr18”
t0“Triticum militinae”
Claim · model-written summary
Ten leaf-rust resistant lines lacked linked markers for Lr18 and Lr50.
- Taxon
- Triticum militinaeTriticum timopheevii subsp. timopheeviit0
- Material
- TMD linese0
- Gene
- Lr18 and Lr50e0
- Outcome
- absence of known genese0
- Value
- Tene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ten TMD lines (7-5, 7-6, 9-1, 9-2, 11-5, 11-6, 12-12, 12-4, 12-8, and 15) with seedling resistance to leaf rust, showing absence of known genes Lr18 and Lr50 with linked markers”
t0“Triticum militinae”
Claim · model-written summary
Eight seedling-resistant stripe-rust lines were expected to carry unknown genes.
- Taxon
- Triticum militinaeTriticum timopheevii subsp. timopheeviit0
- Material
- TMD linese0
- Outcome
- seedling resistance to stripe ruste0
- Value
- 8e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the 8 TMD lines (6-4, 6-5, 11-6,12-4, 12-8, 12-12, 13-7 and 13-9) identified of carrying seedling resistance to stripe rust”
t0“Triticum militinae”
Claim · model-written summary
Three adult-plant stripe-rust resistant lines were expected to carry unknown genes.
- Taxon
- Triticum militinaeTriticum timopheevii subsp. timopheeviit0
- Material
- TMD linese0
- Outcome
- adult plant resistance to stripe ruste0
- Value
- 3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“3 TMD lines (13-1, 13-3 and 13-4) identified of carrying adult plant resistance to stripe rust are expected to carry unknown genes”
t0“Triticum militinae”
Claim · model-written summary
All TMD lines were cytologically stable.
- Taxon
- Triticum militinaeTriticum timopheevii subsp. timopheeviit0
- Material
- TMD linese0
- Outcome
- cytologically stablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the TMD lines were found to be cytologically stable”
t0“Triticum militinae”