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  Comparative Functional Genomics of Salt Stress in Related Model and Cultivated Plants Identifies and Overcomes Limitations to Translational Genomics

Sanchez, D. H., Pieckenstain, F. L., Szymanski, J., Erban, A., Bromke, M., Hannah, M. A., et al. (2011). Comparative Functional Genomics of Salt Stress in Related Model and Cultivated Plants Identifies and Overcomes Limitations to Translational Genomics. PLoS One, 6(2), e17094. doi:10.1371/journal.pone.0017094.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-20DA-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-0D6A-0
Genre: Journal Article

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 Creators:
Sanchez, D. H.1, Author              
Pieckenstain, F. L.2, Author
Szymanski, J.3, Author              
Erban, A.1, Author              
Bromke, M.3, Author              
Hannah, M. A.3, Author              
Kraemer, U.4, Author              
Kopka, J.1, Author              
Udvardi, M. K.5, Author              
Affiliations:
1Applied Metabolome Analysis, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753338              
2External Organizations, ou_persistent22              
3Small Molecules, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753340              
4Metal Homeostasis, Cooperative Research Groups, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753309              
5Molecular Plant Nutrition, Max Planck Research Groups, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753321              

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Free keywords: legume lotus-japonicus arabidopsis-thaliana medicago-truncatula metabolic-responses salinity tolerance gas-chromatography genetics asparagine mechanisms transport
 Abstract: One of the objectives of plant translational genomics is to use knowledge and genes discovered in model species to improve crops. However, the value of translational genomics to plant breeding, especially for complex traits like abiotic stress tolerance, remains uncertain. Using comparative genomics (ionomics, transcriptomics and metabolomics) we analyzed the responses to salinity of three model and three cultivated species of the legume genus Lotus. At physiological and ionomic levels, models responded to salinity in a similar way to crop species, and changes in the concentration of shoot Cl- correlated well with tolerance. Metabolic changes were partially conserved, but divergence was observed amongst the genotypes. Transcriptome analysis showed that about 60% of expressed genes were responsive to salt treatment in one or more species, but less than 1% was responsive in all. Therefore, genotype-specific transcriptional and metabolic changes overshadowed conserved responses to salinity and represent an impediment to simple translational genomics. However, 'triangulation' from multiple genotypes enabled the identification of conserved and tolerant-specific responses that may provide durable tolerance across species.

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Language(s): eng - English
 Dates: 2011-02-142011
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: ISI:000287367600038
DOI: 10.1371/journal.pone.0017094
ISSN: 1932-6203
URI: ://000287367600038http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3038935/pdf/pone.0017094.pdf?tool=pmcentrez
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Title: PLoS One
Source Genre: Journal
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Publ. Info: San Francisco, CA : Public Library of Science
Pages: - Volume / Issue: 6 (2) Sequence Number: - Start / End Page: e17094 Identifier: ISSN: 1932-6203
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000277850