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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
09/11/2020 |
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Data da última atualização: |
10/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUIMARÃES, P. H. R.; LIMA, I. P. de; CASTRO, A. P. de; LANNA, A. C.; MELO, P. G. S.; RAISSAC, M. de. |
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Afiliação: |
PAULO HENRIQUE RAMOS GUIMARAES; ISABELA PEREIRA DE LIMA; ADRIANO PEREIRA DE CASTRO, CNPAF; ANNA CRISTINA LANNA, CNPAF; PATRICIA GUIMARÃES SANTOS MELO, UFG; MARCEL DE RAISSAC, CIRAD. |
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Título: |
Phenotyping root systems in a set of japonica rice accessions: can structural traits predict the response to drought? |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Rice, v. 13, n. 1, p. 67, Sept. 2020. |
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ISSN: |
1939-8425 |
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DOI: |
https://doi.org/10.1186/s12284-020-00404-5 |
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Idioma: |
Inglês |
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Conteúdo: |
Background: The root system plays a major role in plant growth and development and root system architecture is reported to be the main trait related to plant adaptation to drought. However, phenotyping root systems in situ is not suited to high-throughput methods, leading to the development of non-destructive methods for evaluations in more or less controlled root environments. This study used a root phenotyping platform with a panel of 20 japonica rice accessions in order to: (i) assess their genetic diversity for a set of structural and morphological root traits and classify the different types; (ii) analyze the plastic response of their root system to a water deficit at reproductive phase and (iii) explore the ability of the platform for high-throughput phenotyping of root structure and morphology. Results: High variability for the studied root traits was found in the reduced set of accessions. Using eight selected traits under irrigated conditions, five root clusters were found that differed in root thickness, branching index and the pattern of fine and thick root distribution along the profile. When water deficit occurred at reproductive phase, some accessions significantly reduced root growth compared to the irrigated treatment, while others stimulated it. It was found that root cluster, as defined under irrigated conditions, could not predict the plastic response of roots under drought. Conclusions: This study revealed the possibility of reconstructing the structure of root systems from scanned images. It was thus possible to significantly class root systems according to simple structural traits, opening up the way for using such a platform for medium to high-throughput phenotyping. The study also highlighted the uncoupling between root structures under non-limiting water conditions and their response to drought. MenosBackground: The root system plays a major role in plant growth and development and root system architecture is reported to be the main trait related to plant adaptation to drought. However, phenotyping root systems in situ is not suited to high-throughput methods, leading to the development of non-destructive methods for evaluations in more or less controlled root environments. This study used a root phenotyping platform with a panel of 20 japonica rice accessions in order to: (i) assess their genetic diversity for a set of structural and morphological root traits and classify the different types; (ii) analyze the plastic response of their root system to a water deficit at reproductive phase and (iii) explore the ability of the platform for high-throughput phenotyping of root structure and morphology. Results: High variability for the studied root traits was found in the reduced set of accessions. Using eight selected traits under irrigated conditions, five root clusters were found that differed in root thickness, branching index and the pattern of fine and thick root distribution along the profile. When water deficit occurred at reproductive phase, some accessions significantly reduced root growth compared to the irrigated treatment, while others stimulated it. It was found that root cluster, as defined under irrigated conditions, could not predict the plastic response of roots under drought. Conclusions: This study revealed the possibility of reconstructing the structure o... Mostrar Tudo |
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Thesagro: |
Arroz; Oryza Sativa; Variação Genética. |
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Thesaurus Nal: |
Genetic variation; Phenotypic plasticity; Plastic pipes; Rice; Root systems. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217578/1/rice-2020.pdf
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Marc: |
LEADER 02744naa a2200301 a 4500
001 2126401
005 2020-11-10
008 2020 bl uuuu u00u1 u #d
022 $a1939-8425
024 7 $ahttps://doi.org/10.1186/s12284-020-00404-5$2DOI
100 1 $aGUIMARÃES, P. H. R.
245 $aPhenotyping root systems in a set of japonica rice accessions$bcan structural traits predict the response to drought?$h[electronic resource]
260 $c2020
520 $aBackground: The root system plays a major role in plant growth and development and root system architecture is reported to be the main trait related to plant adaptation to drought. However, phenotyping root systems in situ is not suited to high-throughput methods, leading to the development of non-destructive methods for evaluations in more or less controlled root environments. This study used a root phenotyping platform with a panel of 20 japonica rice accessions in order to: (i) assess their genetic diversity for a set of structural and morphological root traits and classify the different types; (ii) analyze the plastic response of their root system to a water deficit at reproductive phase and (iii) explore the ability of the platform for high-throughput phenotyping of root structure and morphology. Results: High variability for the studied root traits was found in the reduced set of accessions. Using eight selected traits under irrigated conditions, five root clusters were found that differed in root thickness, branching index and the pattern of fine and thick root distribution along the profile. When water deficit occurred at reproductive phase, some accessions significantly reduced root growth compared to the irrigated treatment, while others stimulated it. It was found that root cluster, as defined under irrigated conditions, could not predict the plastic response of roots under drought. Conclusions: This study revealed the possibility of reconstructing the structure of root systems from scanned images. It was thus possible to significantly class root systems according to simple structural traits, opening up the way for using such a platform for medium to high-throughput phenotyping. The study also highlighted the uncoupling between root structures under non-limiting water conditions and their response to drought.
650 $aGenetic variation
650 $aPhenotypic plasticity
650 $aPlastic pipes
650 $aRice
650 $aRoot systems
650 $aArroz
650 $aOryza Sativa
650 $aVariação Genética
700 1 $aLIMA, I. P. de
700 1 $aCASTRO, A. P. de
700 1 $aLANNA, A. C.
700 1 $aMELO, P. G. S.
700 1 $aRAISSAC, M. de
773 $tRice$gv. 13, n. 1, p. 67, Sept. 2020.
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Embrapa Arroz e Feijão (CNPAF) |
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| 7. |  | HOFFMANN-CAMPO, C . B. Respostas da soja a estresses bióticos e abióticos. In:ENCONTRO BRASILEIRO DE ECOLOGIA QUÍMICA, 5., 2007, Londrina. Resumos... Londrina: Embrapa Soja, 2007. p. 40. Organizado por Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Lenita Jacob Oliveira, Odilon Ferreira Saraiva, Simone Ery Grosskopf.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
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