Abstract
Near isogenic lines (NILs) resistant to wheat stripe rust have been studied since 1988 by means of backcross and pedigree methods. As a recurrent parent (♀), spring wheat cv. Taichung29 was crossed, backcrossed and selfing with 25 resistance donors which include Chinese differentials of Puccinia striiformis West, and international yellow rust resistance carriers. By gene postulation, monosomic analysis and SSR marker detection, it was verified that 8 NILs had been successfully obtained. They were Taichung29 * 6/Yr1 , Taichung29 * 6/Yr2 , Taichung29 * 6/Yr5, Taichung29 * 6/Yr7, Taichung29 * 6/Yr9 , Taichung29 * 6/Yr10, Taichung29 * 6/YrSpP and Taichung29 * 6/YrKy2 . In addition, 343 lines with stable resistance were obtained by 9 crosses and the target genes were under investigation. Meanwhile 3 crosses have been transferred into BC6F3 and the stable lines were being screened from the offsprings of selfing lines, and 5 crosses have been transferred into BC5 and will be backcrossed.
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Claims 4
Claim · model-written summary
Eight stripe-rust-resistant wheat near-isogenic lines were verified.
- Taxon
- wheat
Triticum aestivumt0 - Interactor
- stripe rustt0pathogen
- Outcome
- NILs had been successfully obtainede0
- Value
- 8 NILse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By gene postulation, monosomic analysis and SSR marker detection, it was verified that 8 NILs had been successfully obtained.”
t0“wheat stripe rust”
Claim · model-written summary
Nine crosses yielded 343 lines with stable resistance.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- stripe rustt0pathogen
- Outcome
- lines with stable resistancee0
- Value
- 343 linese0
- Qualifier
- 9 crossese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“343 lines with stable resistance were obtained by 9 crosses”
t0“wheat stripe rust”
Claim · model-written summary
Three crosses reached BC6F3, where stable lines were being screened.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- stripe rustt0pathogen
- Outcome
- transferred into BC6F3e0
- Value
- 3 crossese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“3 crosses have been transferred into BC6F3 and the stable lines were being screened from the offsprings of selfing lines”
t0“wheat stripe rust”
Claim · model-written summary
Five crosses reached BC5 for further backcrossing.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- stripe rustt0pathogen
- Outcome
- transferred into BC5e0
- Value
- 5 crossese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“5 crosses have been transferred into BC5 and will be backcrossed”
t0“wheat stripe rust”