Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important disease of wheat worldwide. Resistance is the best way to control the disease. YrSP, a gene originally from wheat variety Spaldings Prolific and providing resistance to a broad spectrum of races, is used for differentiating Pst races, but its chromosomal location is not clear. To map YrSP, a near-isogenic line (AvSYrSPNIL) was backcrossed to the recurrent parent, Avocet S. Genetic analysis of the BC7F1, BC8, BC7F2, and BC7F3 progenies confirmed a single dominant gene for resistance. A total of 182 BC7F2 plants and their derived BC7F3 lines were phenotyped with an avirulent Pst race and genotyped with simple sequence repeat (SSR), single-nucleotide polymorphism (SNP), and sequence tagged site (STS) markers. A linkage map was constructed with 3 SSR, 17 SNP, and 3 STS markers covering 23.3 cM. Markers IWA638 and dp269 were 0.6 cM proximal and 1.5 cM distal, respectively, to YrSP. The gene was mapped in chromosome bin 2BL-C-0.5, physically within the proximal 50% of the chromosome 2BL arm. Allelism tests based on F2 phenotypes indicated that YrSP is closely linked to, but not allelic with genes Yr5, Yr7, Yr43, Yr44, and Yr53. Infection type data from tests with ten historical and currently predominant Pst races in the U.S. also demonstrated differences in specificity between YrSP and the other genes. The specificity of YrSP is useful in differentiating Pst races and studying the plant-pathogen interactions, and the information of chromosomal location of the gene and its tightly linked markers should be useful in developing resistant cultivars when combined with other genes for resistance to stripe rust.
This research output has an Altmetric Attention Score of 7. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 May 2025.
All research outputs
#6,568,797
of 31,634,113 outputs
Outputs from Phytopathology
#589
of 3,681 outputs
Outputs of similar age
#63,573
of 288,203 outputs
Outputs of similar age from Phytopathology
#9
of 36 outputs
Altmetric has tracked 31,634,113 research outputs across all sources so far. Compared to these this one has done well and is in the 79th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 3,681 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.5. This one has done well, scoring higher than 84% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 288,203 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 77% of its contemporaries.
We're also able to compare this research output to 36 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 75% of its contemporaries.
