دورية أكاديمية
Anthesis date mainly explained correlations between post-anthesis leaf senescence, grain yield, and grain protein concentration in a winter wheat population segregating for flowering time QTLs
| العنوان: | Anthesis date mainly explained correlations between post-anthesis leaf senescence, grain yield, and grain protein concentration in a winter wheat population segregating for flowering time QTLs |
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| المؤلفون: | Bogard, Matthieu, Jourdan, Matthieu, Allard, Vincent, Martres, Pierre, Perretant, Marie-Reine, Ravel, Catherine, Heumez, Emmanuel, Orford, Simon, Snape, John, Griffiths, Simon, Gaju, Oorbessy, Foulkes, John, Le Gouis, Jacques |
| المساهمون: | Génétique Diversité et Ecophysiologie des Céréales (GDEC), Institut National de la Recherche Agronomique (INRA)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP), Unité expérimentale de Lille, Institut National de la Recherche Agronomique (INRA), Crop Genet Dept, Norwich NR4 7UH, Norfolk, England, John Innes Ctr Plant Sci Res, Div Agr Sci, Loughborough LE12 5RD, Leics, England, University of Nottingham, UK (UON), Institut National de la Recherche Agronomique (INRA) IN-BB-06, UK Biotechnology and Biological Sciences Research Council (BBSRC) |
| المصدر: | ISSN: 0022-0957. |
| بيانات النشر: | HAL CCSD Oxford University Press (OUP) |
| سنة النشر: | 2011 |
| المجموعة: | HAL Clermont Auvergne (Université Blaise Pascal Clermont-Ferrand / Université d'Auvergne) |
| مصطلحات موضوعية: | Grain protein concentration, grain yield, leaf senescence, N uptake, QTLs, Triticum aestivum L, QUANTITATIVE TRAIT LOCI, TRITICUM-AESTIVUM L, DRY-MATTER ACCUMULATION, SOURCE-SINK RATIO, STAY-GREEN, NITROGEN REMOBILIZATION, N-REMOBILIZATION, HEXAPLOWHEAT, BREAD WHEAT, FLAG LEAF, [SDV.SA]Life Sciences [q-bio]/Agricultural sciences |
| الوصف: | The genetic variability of the duration of leaf senescence during grain filling has been shown to affect both carbon and nitrogen acquisition. In particular, maintaining green leaves during grain filling possibly leads to increased grain yield, but its associated effect on grain protein concentration has not been studied. The aim of this study was to dissect the genetic factors contributing to correlations observed at the phenotypic level between leaf senescence during grain filling, grain protein concentration, and grain yield in winter wheat. With this aim in view, an analysis of quantitative trait locus (QTL) co-locations for these traits was carried out on a doubled haploid mapping population grown in a large multienvironment trial network. Pleiotropic QTLs affecting leaf senescence and grain yield and/or grain protein concentration were identified on chromosomes 2D, 2A, and 7D. These were associated with QTLs for anthesis date, showing that the phenotypic correlations with leaf senescence were mainly explained by flowering time in this wheat population. Study of the allelic effects of these pleiotropic QTLs showed that delaying leaf senescence was associated with increased grain yield or grain protein concentration depending on the environments considered. It is proposed that this differential effect of delaying leaf senescence on grain yield and grain protein concentration might be related to the nitrogen availability during the post-anthesis period. It is concluded that the benefit of using leaf senescence as a selection criterion to improve grain protein concentration in wheat cultivars may be limited and would largely depend on the targeted environments, particularly on their nitrogen availability during the post-anthesis period. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-00964410; https://hal.science/hal-00964410Test; PRODINRA: 202933; WOS: 000292557000029 |
| DOI: | 10.1093/jxb/err061 |
| الإتاحة: | https://doi.org/10.1093/jxb/err061Test https://hal.science/hal-00964410Test |
| رقم الانضمام: | edsbas.44D7CDF9 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1093/jxb/err061 |
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