Cargando…
Genetic Variation of Morphological Traits and Transpiration in an Apple Core Collection under Well-Watered Conditions: Towards the Identification of Morphotypes with High Water Use Efficiency
Water use efficiency (WUE) is a quantitative measurement which improvement is a major issue in the context of global warming and restrictions in water availability for agriculture. In this study, we aimed at studying the variation and genetic control of WUE and the respective role of its components...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4699897/ https://www.ncbi.nlm.nih.gov/pubmed/26717192 http://dx.doi.org/10.1371/journal.pone.0145540 |
_version_ | 1782408246124871680 |
---|---|
author | Lopez, Gerardo Pallas, Benoît Martinez, Sébastien Lauri, Pierre-Éric Regnard, Jean-Luc Durel, Charles-Éric Costes, Evelyne |
author_facet | Lopez, Gerardo Pallas, Benoît Martinez, Sébastien Lauri, Pierre-Éric Regnard, Jean-Luc Durel, Charles-Éric Costes, Evelyne |
author_sort | Lopez, Gerardo |
collection | PubMed |
description | Water use efficiency (WUE) is a quantitative measurement which improvement is a major issue in the context of global warming and restrictions in water availability for agriculture. In this study, we aimed at studying the variation and genetic control of WUE and the respective role of its components (plant biomass and transpiration) in a perennial fruit crop. We explored an INRA apple core collection grown in a phenotyping platform to screen one-year-old scions for their accumulated biomass, transpiration and WUE under optimal growing conditions. Plant biomass was decompose into morphological components related to either growth or organ expansion. For each trait, nine mixed models were evaluated to account for the genetic effect and spatial heterogeneity inside the platform. The Best Linear Unbiased Predictors of genetic values were estimated after model selection. Mean broad-sense heritabilities were calculated from variance estimates. Heritability values indicated that biomass (0.76) and WUE (0.73) were under genetic control. This genetic control was lower in plant transpiration with an heritability of 0.54. Across the collection, biomass accounted for 70% of the WUE variability. A Hierarchical Ascendant Classification of the core collection indicated the existence of six groups of genotypes with contrasting morphology and WUE. Differences between morphotypes were interpreted as resulting from differences in the main processes responsible for plant growth: cell division leading to the generation of new organs and cell elongation leading to organ dimension. Although further studies will be necessary on mature trees with more complex architecture and multiple sinks such as fruits, this study is a first step for improving apple plant material for the use of water. |
format | Online Article Text |
id | pubmed-4699897 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-46998972016-01-14 Genetic Variation of Morphological Traits and Transpiration in an Apple Core Collection under Well-Watered Conditions: Towards the Identification of Morphotypes with High Water Use Efficiency Lopez, Gerardo Pallas, Benoît Martinez, Sébastien Lauri, Pierre-Éric Regnard, Jean-Luc Durel, Charles-Éric Costes, Evelyne PLoS One Research Article Water use efficiency (WUE) is a quantitative measurement which improvement is a major issue in the context of global warming and restrictions in water availability for agriculture. In this study, we aimed at studying the variation and genetic control of WUE and the respective role of its components (plant biomass and transpiration) in a perennial fruit crop. We explored an INRA apple core collection grown in a phenotyping platform to screen one-year-old scions for their accumulated biomass, transpiration and WUE under optimal growing conditions. Plant biomass was decompose into morphological components related to either growth or organ expansion. For each trait, nine mixed models were evaluated to account for the genetic effect and spatial heterogeneity inside the platform. The Best Linear Unbiased Predictors of genetic values were estimated after model selection. Mean broad-sense heritabilities were calculated from variance estimates. Heritability values indicated that biomass (0.76) and WUE (0.73) were under genetic control. This genetic control was lower in plant transpiration with an heritability of 0.54. Across the collection, biomass accounted for 70% of the WUE variability. A Hierarchical Ascendant Classification of the core collection indicated the existence of six groups of genotypes with contrasting morphology and WUE. Differences between morphotypes were interpreted as resulting from differences in the main processes responsible for plant growth: cell division leading to the generation of new organs and cell elongation leading to organ dimension. Although further studies will be necessary on mature trees with more complex architecture and multiple sinks such as fruits, this study is a first step for improving apple plant material for the use of water. Public Library of Science 2015-12-30 /pmc/articles/PMC4699897/ /pubmed/26717192 http://dx.doi.org/10.1371/journal.pone.0145540 Text en © 2015 Lopez et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Lopez, Gerardo Pallas, Benoît Martinez, Sébastien Lauri, Pierre-Éric Regnard, Jean-Luc Durel, Charles-Éric Costes, Evelyne Genetic Variation of Morphological Traits and Transpiration in an Apple Core Collection under Well-Watered Conditions: Towards the Identification of Morphotypes with High Water Use Efficiency |
title | Genetic Variation of Morphological Traits and Transpiration in an Apple Core Collection under Well-Watered Conditions: Towards the Identification of Morphotypes with High Water Use Efficiency |
title_full | Genetic Variation of Morphological Traits and Transpiration in an Apple Core Collection under Well-Watered Conditions: Towards the Identification of Morphotypes with High Water Use Efficiency |
title_fullStr | Genetic Variation of Morphological Traits and Transpiration in an Apple Core Collection under Well-Watered Conditions: Towards the Identification of Morphotypes with High Water Use Efficiency |
title_full_unstemmed | Genetic Variation of Morphological Traits and Transpiration in an Apple Core Collection under Well-Watered Conditions: Towards the Identification of Morphotypes with High Water Use Efficiency |
title_short | Genetic Variation of Morphological Traits and Transpiration in an Apple Core Collection under Well-Watered Conditions: Towards the Identification of Morphotypes with High Water Use Efficiency |
title_sort | genetic variation of morphological traits and transpiration in an apple core collection under well-watered conditions: towards the identification of morphotypes with high water use efficiency |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4699897/ https://www.ncbi.nlm.nih.gov/pubmed/26717192 http://dx.doi.org/10.1371/journal.pone.0145540 |
work_keys_str_mv | AT lopezgerardo geneticvariationofmorphologicaltraitsandtranspirationinanapplecorecollectionunderwellwateredconditionstowardstheidentificationofmorphotypeswithhighwateruseefficiency AT pallasbenoit geneticvariationofmorphologicaltraitsandtranspirationinanapplecorecollectionunderwellwateredconditionstowardstheidentificationofmorphotypeswithhighwateruseefficiency AT martinezsebastien geneticvariationofmorphologicaltraitsandtranspirationinanapplecorecollectionunderwellwateredconditionstowardstheidentificationofmorphotypeswithhighwateruseefficiency AT lauripierreeric geneticvariationofmorphologicaltraitsandtranspirationinanapplecorecollectionunderwellwateredconditionstowardstheidentificationofmorphotypeswithhighwateruseefficiency AT regnardjeanluc geneticvariationofmorphologicaltraitsandtranspirationinanapplecorecollectionunderwellwateredconditionstowardstheidentificationofmorphotypeswithhighwateruseefficiency AT durelcharleseric geneticvariationofmorphologicaltraitsandtranspirationinanapplecorecollectionunderwellwateredconditionstowardstheidentificationofmorphotypeswithhighwateruseefficiency AT costesevelyne geneticvariationofmorphologicaltraitsandtranspirationinanapplecorecollectionunderwellwateredconditionstowardstheidentificationofmorphotypeswithhighwateruseefficiency |