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Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan

Profiling elemental contents in wheat grains and clarifying the underlying genetic systems are important for the breeding of biofortified crops. Our objective was to evaluate the genetic potential of 269 Afghan wheat landraces for increasing elemental contents in wheat cultivars. The contents of thr...

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Autores principales: Manickavelu, Alagu, Hattori, Tomohiro, Yamaoka, Shuhei, Yoshimura, Kazusa, Kondou, Youichi, Onogi, Akio, Matsui, Minami, Iwata, Hiroyoshi, Ban, Tomohiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5224831/
https://www.ncbi.nlm.nih.gov/pubmed/28072876
http://dx.doi.org/10.1371/journal.pone.0169416
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author Manickavelu, Alagu
Hattori, Tomohiro
Yamaoka, Shuhei
Yoshimura, Kazusa
Kondou, Youichi
Onogi, Akio
Matsui, Minami
Iwata, Hiroyoshi
Ban, Tomohiro
author_facet Manickavelu, Alagu
Hattori, Tomohiro
Yamaoka, Shuhei
Yoshimura, Kazusa
Kondou, Youichi
Onogi, Akio
Matsui, Minami
Iwata, Hiroyoshi
Ban, Tomohiro
author_sort Manickavelu, Alagu
collection PubMed
description Profiling elemental contents in wheat grains and clarifying the underlying genetic systems are important for the breeding of biofortified crops. Our objective was to evaluate the genetic potential of 269 Afghan wheat landraces for increasing elemental contents in wheat cultivars. The contents of three major (Mg, K, and P) and three minor (Mn, Fe, and Zn) elements in wheat grains were measured by energy dispersive X-ray fluorescence spectrometry. Large variations in elemental contents were observed among landraces. Marker-based heritability estimates were low to moderate, suggesting that the elemental contents are complex quantitative traits. Genetic correlations between two locations (Japan and Afghanistan) and among the six elements were estimated using a multi-response Bayesian linear mixed model. Low-to-moderate genetic correlations were observed among major elements and among minor elements respectively, but not between major and minor elements. A single-response genome-wide association study detected only one significant marker, which was associated with Zn, suggesting it will be difficult to increase the elemental contents of wheat by conventional marker-assisted selection. Genomic predictions for major elemental contents were moderately or highly accurate, whereas those for minor elements were mostly low or moderate. Our results indicate genomic selection may be useful for the genetic improvement of elemental contents in wheat.
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spelling pubmed-52248312017-01-31 Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan Manickavelu, Alagu Hattori, Tomohiro Yamaoka, Shuhei Yoshimura, Kazusa Kondou, Youichi Onogi, Akio Matsui, Minami Iwata, Hiroyoshi Ban, Tomohiro PLoS One Research Article Profiling elemental contents in wheat grains and clarifying the underlying genetic systems are important for the breeding of biofortified crops. Our objective was to evaluate the genetic potential of 269 Afghan wheat landraces for increasing elemental contents in wheat cultivars. The contents of three major (Mg, K, and P) and three minor (Mn, Fe, and Zn) elements in wheat grains were measured by energy dispersive X-ray fluorescence spectrometry. Large variations in elemental contents were observed among landraces. Marker-based heritability estimates were low to moderate, suggesting that the elemental contents are complex quantitative traits. Genetic correlations between two locations (Japan and Afghanistan) and among the six elements were estimated using a multi-response Bayesian linear mixed model. Low-to-moderate genetic correlations were observed among major elements and among minor elements respectively, but not between major and minor elements. A single-response genome-wide association study detected only one significant marker, which was associated with Zn, suggesting it will be difficult to increase the elemental contents of wheat by conventional marker-assisted selection. Genomic predictions for major elemental contents were moderately or highly accurate, whereas those for minor elements were mostly low or moderate. Our results indicate genomic selection may be useful for the genetic improvement of elemental contents in wheat. Public Library of Science 2017-01-10 /pmc/articles/PMC5224831/ /pubmed/28072876 http://dx.doi.org/10.1371/journal.pone.0169416 Text en © 2017 Manickavelu 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 (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Manickavelu, Alagu
Hattori, Tomohiro
Yamaoka, Shuhei
Yoshimura, Kazusa
Kondou, Youichi
Onogi, Akio
Matsui, Minami
Iwata, Hiroyoshi
Ban, Tomohiro
Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan
title Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan
title_full Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan
title_fullStr Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan
title_full_unstemmed Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan
title_short Genetic Nature of Elemental Contents in Wheat Grains and Its Genomic Prediction: Toward the Effective Use of Wheat Landraces from Afghanistan
title_sort genetic nature of elemental contents in wheat grains and its genomic prediction: toward the effective use of wheat landraces from afghanistan
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5224831/
https://www.ncbi.nlm.nih.gov/pubmed/28072876
http://dx.doi.org/10.1371/journal.pone.0169416
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