Combining field performance with controlled environment plant imaging to identify the genetic control of growth and transpiration underlying yield response to water-deficit stress in wheat
| العنوان: | Combining field performance with controlled environment plant imaging to identify the genetic control of growth and transpiration underlying yield response to water-deficit stress in wheat |
|---|---|
| المؤلفون: | Lance Maphosa, Bettina Berger, Delphine Fleury, Kenneth J. Chalmers, Huwaida Rabie, Peter Langridge, Boris Parent, Alex Kovalchuk, Fahimeh Shahinnia |
| المساهمون: | Parent, Boris, Shahinnia, Fahimeh, Maphosa, Lance, Berger, Bettina, Rabie, Huwaida, Chalmers, Ken, Kovalchuk, Alex, Langridge, Peter, Fleury, Delphine, Écophysiologie des Plantes sous Stress environnementaux (LEPSE), Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), University of Adelaide, University of South Australia, School of Agriculture Food and Wine |
| المصدر: | Journal of Experimental Botany Journal of Experimental Botany, Oxford University Press (OUP), 2015, 66 (18), pp.5481-5492. ⟨10.1093/jxb/erv320⟩ |
| بيانات النشر: | Oxford University Press, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Water-use efficiency, 0106 biological sciences, Positional cloning, Physiology, leaf expansion, QTL, [SDV]Life Sciences [q-bio], Population, Quantitative Trait Loci, Triticum aestivum, Lemnatec, drought, Plant Science, Quantitative trait locus, Biology, 01 natural sciences, Genetic analysis, Chromosomes, Plant, 03 medical and health sciences, triticum aestivum, water-use efficiency, education, Triticum, 030304 developmental biology, Transpiration, 2. Zero hunger, 0303 health sciences, education.field_of_study, Drought, Crop yield, food and beverages, Chromosome Mapping, Water, Plant Transpiration, Droughts, Phenotype, Agronomy, lemnatec, [SDE]Environmental Sciences, Trait, 010606 plant biology & botany, Research Paper |
| الوصف: | Highlight We describe new quantitative trait loci for growth and transpiration in wheat under two water regimes using an imaging platform, and co-location with loci for yield components in the field. Crop yield in low-rainfall environments is a complex trait under multigenic control that shows significant genotype×environment (G×E) interaction. One way to understand and track this trait is to link physiological studies to genetics by using imaging platforms to phenotype large segregating populations. A wheat population developed from parental lines contrasting in their mechanisms of yield maintenance under water deficit was studied in both an imaging platform and in the field. We combined phenotyping methods in a common analysis pipeline to estimate biomass and leaf area from images and then inferred growth and relative growth rate, transpiration, and water-use efficiency, and applied these to genetic analysis. From the 20 quantitative trait loci (QTLs) found for several traits in the platform, some showed strong effects, accounting for between 26 and 43% of the variation on chromosomes 1A and 1B, indicating that the G×E interaction could be reduced in a controlled environment and by using dynamic variables. Co-location of QTLs identified in the platform and in the field showed a possible common genetic basis at some loci. Co-located QTLs were found for average growth rate, leaf expansion rate, transpiration rate, and water-use efficiency from the platform with yield, spike number, grain weight, grain number, and harvest index in the field. These results demonstrated that imaging platforms are a suitable alternative to field-based screening and may be used to phenotype recombinant lines for positional cloning. |
| اللغة: | English |
| تدمد: | 1460-2431 0022-0957 |
| DOI: | 10.1093/jxb/erv320⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83ae9729760363119c045c1af6376327 http://europepmc.org/articles/PMC4585424 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....83ae9729760363119c045c1af6376327 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14602431 00220957 |
|---|---|
| DOI: | 10.1093/jxb/erv320⟩ |