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Using the UK reference population Avalon × Cadenza as a platform to compare breeding strategies in elite Western European bread wheat
Wheat breeders select for qualitative and quantitative traits, the latter often detected as quantitative trait loci (QTL). It is, however, a long procedure from QTL discovery to the successful introduction of favourable alleles into new elite varieties and finally into farmers’ crops. As a proof of...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Netherlands
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4317512/ https://www.ncbi.nlm.nih.gov/pubmed/25663815 http://dx.doi.org/10.1007/s11032-015-0268-7 |
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author | Ma, Juan Wingen, Luzie U. Orford, Simon Fenwick, Paul Wang, Jiankang Griffiths, Simon |
author_facet | Ma, Juan Wingen, Luzie U. Orford, Simon Fenwick, Paul Wang, Jiankang Griffiths, Simon |
author_sort | Ma, Juan |
collection | PubMed |
description | Wheat breeders select for qualitative and quantitative traits, the latter often detected as quantitative trait loci (QTL). It is, however, a long procedure from QTL discovery to the successful introduction of favourable alleles into new elite varieties and finally into farmers’ crops. As a proof of principle for this process, QTL for grain yield (GY), yield components, plant height (PH), ear emergence (EM), solid stem (SS) and yellow rust resistance (Yr) were identified in segregating UK bread wheat reference population, Avalon × Cadenza. Among the 163 detected QTL were several not reported before: 17 for GY, the major GY QTL on 2D; a major SS QTL on 3B; and Yr6 on 7B. Common QTL were identified on ten chromosomes, most interestingly, grain number (GN) was found to be associated with Rht-D1b; and GY and GN with a potential new allele of Rht8. The interaction of other QTL with GY and yield components was discussed in the context of designing a UK breeding target genotype. Desirable characteristics would be: similar PH and EM to Avalon; Rht-D1b and Vrn-A1b alleles; high TGW and GN; long and wide grains; a large root system, resistance to diseases; and maximum GY. The potential of the identified QTL maximising transgressive segregation to produce a high-yielding and resilient genotype was demonstrated by simulation. Moreover, simulating breeding strategies with F(2) enrichment revealed that the F(2)–DH procedure was superior to the RIL and the modified SSD procedure to achieve that genotype. The proposed strategies of parent selection and breeding methodology can be used as guidance for marker-assisted wheat breeding. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s11032-015-0268-7) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-4317512 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Springer Netherlands |
record_format | MEDLINE/PubMed |
spelling | pubmed-43175122015-02-06 Using the UK reference population Avalon × Cadenza as a platform to compare breeding strategies in elite Western European bread wheat Ma, Juan Wingen, Luzie U. Orford, Simon Fenwick, Paul Wang, Jiankang Griffiths, Simon Mol Breed Article Wheat breeders select for qualitative and quantitative traits, the latter often detected as quantitative trait loci (QTL). It is, however, a long procedure from QTL discovery to the successful introduction of favourable alleles into new elite varieties and finally into farmers’ crops. As a proof of principle for this process, QTL for grain yield (GY), yield components, plant height (PH), ear emergence (EM), solid stem (SS) and yellow rust resistance (Yr) were identified in segregating UK bread wheat reference population, Avalon × Cadenza. Among the 163 detected QTL were several not reported before: 17 for GY, the major GY QTL on 2D; a major SS QTL on 3B; and Yr6 on 7B. Common QTL were identified on ten chromosomes, most interestingly, grain number (GN) was found to be associated with Rht-D1b; and GY and GN with a potential new allele of Rht8. The interaction of other QTL with GY and yield components was discussed in the context of designing a UK breeding target genotype. Desirable characteristics would be: similar PH and EM to Avalon; Rht-D1b and Vrn-A1b alleles; high TGW and GN; long and wide grains; a large root system, resistance to diseases; and maximum GY. The potential of the identified QTL maximising transgressive segregation to produce a high-yielding and resilient genotype was demonstrated by simulation. Moreover, simulating breeding strategies with F(2) enrichment revealed that the F(2)–DH procedure was superior to the RIL and the modified SSD procedure to achieve that genotype. The proposed strategies of parent selection and breeding methodology can be used as guidance for marker-assisted wheat breeding. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s11032-015-0268-7) contains supplementary material, which is available to authorized users. Springer Netherlands 2015-02-05 2015 /pmc/articles/PMC4317512/ /pubmed/25663815 http://dx.doi.org/10.1007/s11032-015-0268-7 Text en © The Author(s) 2015 https://creativecommons.org/licenses/by/4.0/ Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. |
spellingShingle | Article Ma, Juan Wingen, Luzie U. Orford, Simon Fenwick, Paul Wang, Jiankang Griffiths, Simon Using the UK reference population Avalon × Cadenza as a platform to compare breeding strategies in elite Western European bread wheat |
title | Using the UK reference population Avalon × Cadenza as a platform to compare breeding strategies in elite Western European bread wheat |
title_full | Using the UK reference population Avalon × Cadenza as a platform to compare breeding strategies in elite Western European bread wheat |
title_fullStr | Using the UK reference population Avalon × Cadenza as a platform to compare breeding strategies in elite Western European bread wheat |
title_full_unstemmed | Using the UK reference population Avalon × Cadenza as a platform to compare breeding strategies in elite Western European bread wheat |
title_short | Using the UK reference population Avalon × Cadenza as a platform to compare breeding strategies in elite Western European bread wheat |
title_sort | using the uk reference population avalon × cadenza as a platform to compare breeding strategies in elite western european bread wheat |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4317512/ https://www.ncbi.nlm.nih.gov/pubmed/25663815 http://dx.doi.org/10.1007/s11032-015-0268-7 |
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