Abstract
Stripe rust, caused by Puccinia striiformis f. sp. tritici, is one of the most destructive diseases in wheat production. Pyramiding of adult-plant resistance (APR) genes is a promising strategy to increase durability of resistance. The stripe rust resistance (R) genes Yr18, Yr28, and Yr36 encode different protein families which confer partial resistance to a broad array of P. striiformis f. sp. tritici races. Here, we developed BC 3 F 5 wheat lines representing all possible combinations of Yr18, Yr28, and Yr36 in a genetic background of the highly P. striiformis f. sp. tritici-susceptible wheat line SY95-71 that is widely used in stripe rust analysis. These lines enabled us to accurately evaluate these genes singly and in combination in a common genetic background. The adult plant resistance experiments were analyzed in the field, where stripe rust epidemics occurred frequently. The field results indicated that these partial R genes act additively in enhancing the levels of resistance, and a minimum of two-gene combinations can generate adequate stripe rust resistance. The Yr28 + Yr36 and Yr18 + Yr28 + Yr36 combinations also showed adequate resistance at the seedling stage, implying that APR gene pyramiding can achieve all-stage resistance. Meanwhile, the three genes were simultaneously introduced into elite wheat lines through gene-based marker selection. Elite lines exhibited strong all-stage resistance to stripe rust. This work provides valuable insights and resources for developing durable P. striiformis f. sp. tritici-resistant varieties and for elucidating the regulation mechanism of partial R gene pyramiding.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Partial resistance genes acted additively against stripe rust in adult wheat plants.
- Taxon
- wheat
Triticum aestivumt0 - Interactor
- P. striiformis f. sp. tritici
Puccinia striiformis f. sp. triticie2pathogen - Gene
- Yr18, Yr28, and Yr36e1
- Outcome
- levels of resistancee0
- Direction
- enhancinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these partial R genes act additively in enhancing the levels of resistance”
t0“Wheat Stripe Rust”
e1“Yr18, Yr28, and Yr36 encode”
e2“broad array of P. striiformis f. sp. tritici races”
Claim · model-written summary
At least two resistance genes gave adequate field stripe rust resistance.
- Taxon
- wheatTriticum aestivumt0
- Material
- two-gene combinationse0
- Outcome
- adequate stripe rust resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a minimum of two-gene combinations can generate adequate stripe rust resistance”
t0“Wheat Stripe Rust”
Claim · model-written summary
The Yr28 plus Yr36 combination gave adequate seedling resistance.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- seedling stagee0
- Gene
- Yr28 + Yr36e0
- Outcome
- adequate resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Yr28 + Yr36 and Yr18 + Yr28 + Yr36 combinations also showed adequate resistance at the seedling stage”
t0“Wheat Stripe Rust”
Claim · model-written summary
The Yr18, Yr28 and Yr36 combination gave adequate seedling resistance.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- seedling stagee0
- Gene
- Yr18 + Yr28 + Yr36e0
- Outcome
- adequate resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Yr28 + Yr36 and Yr18 + Yr28 + Yr36 combinations also showed adequate resistance at the seedling stage”
t0“Wheat Stripe Rust”
Claim · model-written summary
Elite wheat lines carrying all three genes showed strong all-stage stripe rust resistance.
- Taxon
- wheatTriticum aestivumt0
- Material
- Elite linese0
- Outcome
- strong all-stage resistance to stripe ruste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elite lines exhibited strong all-stage resistance to stripe rust.”
t0“Wheat Stripe Rust”