Abstract
The related species of Triticinae are important and valuable gene resources for molecular improvement of wheat(Triti-cum aestivum L.).These species have a number of distinct characteristics that common wheat varieties simply do not have.Through distant hybridization and chromosome engineering in the past years,a number of new germplasms,including wheat(Xiaoyan 6)-rye(German white) addition,substitution and translocation lines,have been developed and characterized.The sequential ge-nome in situ hybridization(GISH) and multi-color fluorescence in situ hybridization(FISH),specific molecular markers,combining with disease resistance evaluation and nutrition,quality and yield identification had screened 10 kinds of new wide hybrid germ-plasms,including sterile lines.The screened germplasms were highly resistant to stripe rust,leaf rust and powdery mildew.Some hybrid germplasms were also of high quality,enriched Zn and Fe,high nutrient efficiency and desirable agronomic traits.These traits made the germplasms new and valuable for effective wheat breeding.Also 414 new EST(expressed sequence tag) markers specific to rye genome and 31 new markers specific to rye chromosome arms had been developed.These molecular markers could be used in marker-assisted selection breeding or to rapidly detect corresponding rye chromosomes or chromosome segments introgressed into wheat background.The identification and mapping of new resistant genes derived from wheat relatives were ongoing.Some new advanced lines of wheat-rye and wheat-Agropyron cristatum were being developed for release as new cultivars.
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Claims 11
Claim · model-written summary
Wheat–rye addition, substitution and translocation germplasm lines were developed.
- Taxon
- wheat
Triticum aestivume0 - Material
- wheat(Xiaoyan 6)-rye(German white)e0
- Outcome
- addition,substitution and translocation linese0
- Value
- a number of new germplasmse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Through distant hybridization and chromosome engineering in the past years,a number of new germplasms,including wheat(Xiaoyan 6)-rye(German white) addition,substitution and translocation lines,have been developed and characterized.”
Claim · model-written summary
Ten wide-hybrid germplasm types, including sterile lines, were screened.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- new wide hybrid germ-plasmse0
- Value
- 10 kindse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“had screened 10 kinds of new wide hybrid germ-plasms,including sterile lines.”
t0“wheat”
Claim · model-written summary
The screened wheat germplasm had high stripe-rust resistance.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- stripe ruste0pathogen
- Outcome
- highly resistant to stripe ruste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The screened germplasms were highly resistant to stripe rust,leaf rust and powdery mildew.”
t0“wheat”
Claim · model-written summary
The screened wheat germplasm had high leaf-rust resistance.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- leaf ruste0pathogen
- Outcome
- leaf ruste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The screened germplasms were highly resistant to stripe rust,leaf rust and powdery mildew.”
t0“wheat”
Claim · model-written summary
The screened wheat germplasm had high powdery-mildew resistance.
- Taxon
- wheatTriticum aestivumt0
- Interactor
- powdery mildewe0pathogen
- Outcome
- powdery mildewe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The screened germplasms were highly resistant to stripe rust,leaf rust and powdery mildew.”
t0“wheat”
Claim · model-written summary
Some hybrid germplasm had high quality and desirable agronomic traits.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- high qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some hybrid germplasms were also of high quality,enriched Zn and Fe,high nutrient efficiency and desirable agronomic traits.”
t0“wheat”
Claim · model-written summary
Some hybrid germplasm had enriched Zn and Fe.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- enriched Zn and Fee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some hybrid germplasms were also of high quality,enriched Zn and Fe,high nutrient efficiency and desirable agronomic traits.”
t0“wheat”
Claim · model-written summary
Some hybrid germplasm had high nutrient efficiency.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- high nutrient efficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some hybrid germplasms were also of high quality,enriched Zn and Fe,high nutrient efficiency and desirable agronomic traits.”
t0“wheat”
Claim · model-written summary
Some hybrid germplasm had desirable agronomic traits.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- desirable agronomic traitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some hybrid germplasms were also of high quality,enriched Zn and Fe,high nutrient efficiency and desirable agronomic traits.”
t0“wheat”
Claim · model-written summary
Researchers developed 414 rye-genome-specific EST markers.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- new EST(expressed sequence tag) markers specific to rye genomee0
- Value
- 414e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Also 414 new EST(expressed sequence tag) markers specific to rye genome and 31 new markers specific to rye chromosome arms had been developed.”
t0“wheat”
Claim · model-written summary
Researchers developed 31 rye-chromosome-arm-specific markers.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- new markers specific to rye chromosome armse0
- Value
- 31e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Also 414 new EST(expressed sequence tag) markers specific to rye genome and 31 new markers specific to rye chromosome arms had been developed.”
t0“wheat”