Abstract
Abstract Spontaneous off‐type plants for leaf rust reaction to Argentine races 66 and 77 of Puccinia recondita tritici were found at rates of 3.4 per 1000 and 0.44 per 1000, respectively, in the progeny of self‐pollinated (bagged) spikes of Sinvalocho, MA wheat. Leaf rust reaction changes were associated to aneuploidy in most cases. The variation to race 66 was associated to monosomy of chromosome 6B or probably deletions on chromosome arm 6BL. Some off‐type plants however showed, in subsequent generations. changes for reaction to race 77 or simultaneous changes to races 66 and 77 as well as changes in leucine aminopeptidase isozyme expression, which cannot be explained on grounds of allelic dosage. The origin of these genetic and chromosomal changesis not clear in some cases, however, a common origin could be suggested by the presence of transposonlike elements.
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Claims 8
Claim · model-written summary
Off-type wheat plants for rust race 66 reaction appeared at 3.4 per 1000.
- Taxon
- wheat
Triticum aestivume0 - Material
- Sinvalocho, MAe0
- Interactor
- Puccinia recondita tritici
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Puccinia reconditae0pathogen - Outcome
- leaf rust reaction to Argentine races 66e0
- Value
- 3.4 per 1000e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“Spontaneous off‐type plants for leaf rust reaction to Argentine races 66 and 77 of Puccinia recondita tritici were found at rates of 3.4 per 1000 and 0.44 per 1000, respectively, in the progeny of self‐pollinated (bagged) spikes of Sinvalocho, MA wheat”
Claim · model-written summary
Off-type wheat plants for rust race 77 reaction appeared at 0.44 per 1000.
- Taxon
- wheatTriticum aestivume0
- Material
- Sinvalocho, MAe0
- Interactor
- Puccinia recondita triticiPuccinia reconditae0pathogen
- Outcome
- leaf rust reaction to Argentine races 66 and 77e0
- Value
- 0.44 per 1000e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spontaneous off‐type plants for leaf rust reaction to Argentine races 66 and 77 of Puccinia recondita tritici were found at rates of 3.4 per 1000 and 0.44 per 1000, respectively, in the progeny of self‐pollinated (bagged) spikes of Sinvalocho, MA wheat”
Claim · model-written summary
Most leaf-rust reaction changes were associated with aneuploidy.
- Taxon
- WheatTriticum aestivumt0
- Material
- aneuploidye0
- Outcome
- Leaf rust reaction changese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf rust reaction changes were associated to aneuploidy in most cases”
t0“Wheat”
Claim · model-written summary
Variation in race 66 reaction was associated with chromosome 6B monosomy or probable 6BL deletions.
- Taxon
- WheatTriticum aestivumt0
- Gene
- chromosome 6Be0
- Outcome
- variation to race 66e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The variation to race 66 was associated to monosomy of chromosome 6B or probably deletions on chromosome arm 6BL”
t0“Wheat”
Claim · model-written summary
Some off-type plants showed later-generation changes in reaction to race 77.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- changes for reaction to race 77e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some off‐type plants however showed, in subsequent generations. changes for reaction to race 77”
t0“Wheat”
Claim · model-written summary
Some off-type plants showed simultaneous changes in reaction to races 66 and 77.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- simultaneous changes to races 66 and 77e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“simultaneous changes to races 66 and 77”
t0“Wheat”
Claim · model-written summary
Some off-type plants showed changes in leucine aminopeptidase isozyme expression.
- Taxon
- WheatTriticum aestivumt0
- Gene
- leucine aminopeptidasee0
- Outcome
- isozyme expressione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“changes in leucine aminopeptidase isozyme expression”
t0“Wheat”
Claim · model-written summary
The authors suggested transposonlike elements as a possible common origin of the genetic and chromosomal changes.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- common origine0
- Qualifier
- presence of transposonlike elementse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a common origin could be suggested by the presence of transposonlike elements”
t0“Wheat”