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Related Experiment Video

Updated: Jan 29, 2026

High-Throughput Identification of Resistance to Pseudomonas syringae pv. Tomato in Tomato using Seedling Flood Assay
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Seedling and Slow Rusting Resistance to Stripe Rust in Chinese Common Wheats.

Z F Li1, X C Xia1, X C Zhou2

  • 1Institute of Crop Science/National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Zhongguancun South Street 12, 100081, Beijing, China.

Plant Disease
|February 21, 2019
PubMed
Summary
This summary is machine-generated.

Identifying wheat stripe rust resistance genes is crucial for disease control. This study postulated known resistance genes in Chinese wheat lines and identified 33 lines with slow-rusting resistance.

Keywords:
bread wheatgene-for-gene specificityyellow rust

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Area of Science:

  • Plant Pathology
  • Genetics
  • Agricultural Science

Background:

  • Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a major wheat disease.
  • Identifying specific resistance genes is vital for breeding resistant cultivars and effective disease management strategies.

Purpose of the Study:

  • To identify seedling and slow stripe rust resistance genes in Chinese wheat lines.
  • To aid in gene pyramiding, deployment, and the development of slow-rusting wheat cultivars.

Main Methods:

  • Inoculation of 98 Chinese wheat lines with 26 Puccinia striiformis f. sp. tritici pathotypes for seedling stage gene postulation.
  • Phenotyping 135 wheat lines for slow rusting responses across two locations and two cropping seasons (2003-2004, 2004-2005).

Main Results:

  • Seventy-two lines had postulated resistance genes (Yr2, Yr3a, Yr4a, Yr6, Yr7, Yr9, Yr26, Yr27, YrSD), with Yr9 and Yr26 being most frequent.
  • Thirty-three lines exhibited slow stripe rusting resistance in both locations and seasons.
  • Twenty-six accessions lacked identifiable known resistance genes.

Conclusions:

  • Several Chinese wheat lines possess known stripe rust resistance genes, contributing to genetic diversity for breeding.
  • The identification of slow-rusting lines provides valuable resources for developing durable resistance against wheat stripe rust.