Abstract
Abstract YLM, a codaominant polymerase chain reaction (PCR) marker linked to Yd2 , could substantially improve the precision and efficiency of barley yellow dwarf virus (BYDV) resistance breeding. The aim of this study was to assess the effectiveness of YLM in a marker‐assisted introgression programme and to quantify associations between the presence of Yd2 and other agronomic and quality traits. The Yd2 gene was introgressed into a BYDV‐susceptible background through two cycles of marker‐assisted backcrossing. BC 2 F 2 ‐derived lines, either carrying or not carrying the YLM allele associated with resistance, were compared in the presence and absence of BYDV. The YLM marker was shown to be effective in the introgression of Yd2. Lines carrying the YLM allele associated with resistance produced significantly fewer leaf symptoms and showed a reduction in yield loss when infected with BYDV. There were no deleterious effects associated with the introgression of Yd2 on grain yield, grain size or malting quality. The implications of marker‐assisted selection for Yd2 on barley improvement are discussed.
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Claims 4
Claim · model-written summary
The YLM marker was effective in introgressing Yd2 into barley
- Taxon
- barley
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Hordeum vulgaret0 - Outcome
- effective in the introgression of Yd2e1
- Comparator
- not carrying the YLM allele associated with resistancee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“resistance to barley yellow dwarf virus in barley”
e1“The YLM marker was shown to be effective in the introgression of Yd2”
e2“either carrying or not carrying the YLM allele associated with resistance, were compared in the presence and absence of BYDV”
Claim · model-written summary
Barley lines carrying the YLM allele had significantly fewer leaf symptoms than lines without it when infected with BYDV
- Taxon
- barleyHordeum vulgaret0
- Material
- Lines carrying the YLM allele associated with resistancee3
- Treatment
- infected with BYDVe3
- Interactor
- BYDV
Barley yellow dwarf viruse3pathogen - Outcome
- leaf symptomse3
- Direction
- fewere3
- Comparator
- not carrying the YLM allele associated with resistancee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“resistance to barley yellow dwarf virus in barley”
e2“either carrying or not carrying the YLM allele associated with resistance, were compared in the presence and absence of BYDV”
e3“Lines carrying the YLM allele associated with resistance produced significantly fewer leaf symptoms and showed a reduction in yield loss when infected with BYDV”
Claim · model-written summary
Barley lines carrying the YLM allele showed a reduction in yield loss when infected with BYDV
- Taxon
- barleyHordeum vulgaret0
- Material
- Lines carrying the YLM allele associated with resistancee3
- Treatment
- infected with BYDVe3
- Interactor
- BYDVBarley yellow dwarf viruse3pathogen
- Outcome
- yield losse3
- Direction
- reductione3
- Comparator
- not carrying the YLM allele associated with resistancee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“resistance to barley yellow dwarf virus in barley”
e2“either carrying or not carrying the YLM allele associated with resistance, were compared in the presence and absence of BYDV”
e3“Lines carrying the YLM allele associated with resistance produced significantly fewer leaf symptoms and showed a reduction in yield loss when infected with BYDV”
Claim · model-written summary
Introgression of Yd2 had no deleterious effect on grain yield, grain size or malting quality of barley
- Taxon
- barleyHordeum vulgaret0
- Treatment
- introgression of Yd2e4
- Outcome
- grain yield, grain size or malting qualitye4
- Direction
- no_changeinferrede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“resistance to barley yellow dwarf virus in barley”
e4“There were no deleterious effects associated with the introgression of Yd2 on grain yield, grain size or malting quality”
The same questions in other papers
infection · Barley yellow dwarf virus · Hordeum vulgare (barley)Positive and negative results
1 paper in the same direction as this paper · 6 in the opposite direction
- no effect
- negative
- negative
4 papers more in this group
See all 8 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.