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. 1989 Aug;90(4):1243–1245. doi: 10.1104/pp.90.4.1243

A Unique Phenotype in Heterozygotes of the Auxin-Insensitive Mutant of Tomato, diageotropica1

Virginia M Ursin 1,2, Kent J Bradford 1
PMCID: PMC1061874  PMID: 16666914

Abstract

Tomato (Lycopersicon esculentum Mill.) plants heterozygous for the diageotropica (dgt) mutation exhibit a unique phenotype, termed `mottled.' Unlike dgt, mottled individuals grow upright, exhibit normal root branching, and produce normal levels of ethylene in response to applied auxin. Leaves of mottled plants are deformed and reduced in size and are characterized by a mottled appearance on their surfaces with small dark-green islands clustered along the leaf veins. The lack of phenotypic overlap between dgt and mottled may represent interallelic interaction at a locus which influences auxin sensitivity or action in the tomato.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Bradford K. J., Yang S. F. Stress-induced Ethylene Production in the Ethylene-requiring Tomato Mutant Diageotropica. Plant Physiol. 1980 Feb;65(2):327–330. doi: 10.1104/pp.65.2.327. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Foley J. M., Giles N. H., Roberts C. F. Complementation at the adenylosuccinase locus in Aspergillus nidulans. Genetics. 1965 Dec;52(6):1247–1263. doi: 10.1093/genetics/52.6.1247. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Homyk T., Jr, Emerson C. P., Jr Functional interactions between unlinked muscle genes within haploinsufficient regions of the Drosophila genome. Genetics. 1988 May;119(1):105–121. doi: 10.1093/genetics/119.1.105. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Kelly M. O., Bradford K. J. Insensitivity of the diageotropica tomato mutant to auxin. Plant Physiol. 1986 Nov;82(3):713–717. doi: 10.1104/pp.82.3.713. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Löbler M., Klämbt D. Auxin-binding protein from coleoptile membranes of corn (Zea mays L.). I. Purification by immunological methods and characterization. J Biol Chem. 1985 Aug 15;260(17):9848–9853. [PubMed] [Google Scholar]
  6. Schwartz D. Subunit interaction of a temperature-sensitive alcohol dehydrogenase mutant in maize. Genetics. 1971 Apr;67(4):515–519. doi: 10.1093/genetics/67.4.515. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Ursin V. M., Bradford K. J. Auxin and Ethylene Regulation of Petiole Epinasty in Two Developmental Mutants of Tomato, diageotropica and Epinastic. Plant Physiol. 1989 Aug;90(4):1341–1346. doi: 10.1104/pp.90.4.1341. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Zobel R. W. Some Physiological Characteristics of the Ethylene-requiring Tomato Mutant Diageotropica. Plant Physiol. 1973 Oct;52(4):385–389. doi: 10.1104/pp.52.4.385. [DOI] [PMC free article] [PubMed] [Google Scholar]

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