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231223s2006 xx ||||| 00| ||eng c |
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|a pubmed24n0542.xml
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|a (DE-627)NLM162693060
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|a (NLM)16687436
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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100 |
1 |
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|a Martí, Esmeralda
|e verfasserin
|4 aut
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1 |
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|a Genetic and physiological characterization of tomato cv. Micro-Tom
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|c 2006
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 17.10.2006
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|a Date Revised 07.12.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Based on its compact habit, Micro-Tom, a dwarf cultivar of tomato (Solanum lycopersicum L.), has been proposed as a preferred variety to carry out molecular research in tomato. This cultivar, however, is poorly characterized. It is shown here that Micro-Tom has mutations in the SELF-PRUNING (SP) and DWARF (D) genes. In addition to this, it is also shown that Micro-Tom harbours at least two independently segregating resistance loci to the plant pathogen Cladosporium fulvum. The presence of the self-pruning mutation in Micro-Tom, that generates a determinate phenotype, was confirmed by crossing and sequence analysis. It was also found that Micro-Tom has a mutation in the DWARF gene (d) that leads to mis-splicing and production of at least two shorter mRNAs. The d mutation is predicted to generate truncated DWARF protein. The d sequence defect co-segregates with dark-green and rugose leaves, characteristics of brassinosteroid biosynthesis mutants. Micro-Tom also carries at least another mutation producing internode length reduction that affects plant height but not active gibberellin (GA) levels, which were similar in dwarf and tall Micro-TomxSeverianin segregants. GAs and brassinosteroids act synergistically in Micro-Tom, and the response to GA depends on brassinosteroids because the elongation of internodes was at least six times higher when GA(3) was applied simultaneously with brassinolide. A novel variety, Micro-0 that is fully susceptible to C. fulvum and almost as dwarf as Micro-Tom, has been generated from the cross of Cf0xMicro-Tom. This line represents a valuable resource for future analysis of Cf resistance genes through breeding or transformation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Gibberellins
|2 NLM
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|a Plant Growth Regulators
|2 NLM
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|a Plant Proteins
|2 NLM
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|a SP protein, Lycopersicon esculentum
|2 NLM
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|a Steroids
|2 NLM
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|a Gisbert, Carmina
|e verfasserin
|4 aut
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|a Bishop, Gerard J
|e verfasserin
|4 aut
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|a Dixon, Mark S
|e verfasserin
|4 aut
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|a García-Martínez, José L
|e verfasserin
|4 aut
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773 |
0 |
8 |
|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 57(2006), 9 vom: 28., Seite 2037-47
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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773 |
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|g volume:57
|g year:2006
|g number:9
|g day:28
|g pages:2037-47
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