Skip to main content
NCBI home page
Plant Physiology logoLink to Plant Physiology
. 1992 Aug;99(4):1569–1574. doi: 10.1104/pp.99.4.1569

A Single Genetic Locus, Ckr1, Defines Arabidopsis Mutants in which Root Growth Is Resistant to Low Concentrations of Cytokinin 1

Wenpei Su 1,2, Stephen H Howell 1,2
PMCID: PMC1080665  PMID: 16669075

Abstract

Arabidopsis mutants resistant to cytokinin (benzyladenine [BA]) have been isolated with the intent to find plants defective in cytokinin perception or response. At low concentrations, BA produces a “cytokinin root syndrome” in which primary root elongation is inhibited, but root hair elongation is stimulated. Five independent mutants that did not express this syndrome in the presence of BA were selected. All five mutants were recessive, and crosses between them indicated that they were in the same complementation group. The genetic locus represented by these mutations has been designated ckr1 and mapped to chromosome 5.

Full text

PDF
1569

Images in this article

1571Figure 2
on p.1571
1573Figure 4
on p.1573

Selected References

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

  1. Chang C., Bowman J. L., DeJohn A. W., Lander E. S., Meyerowitz E. M. Restriction fragment length polymorphism linkage map for Arabidopsis thaliana. Proc Natl Acad Sci U S A. 1988 Sep;85(18):6856–6860. doi: 10.1073/pnas.85.18.6856. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Feinberg A. P., Vogelstein B. A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity. Anal Biochem. 1983 Jul 1;132(1):6–13. doi: 10.1016/0003-2697(83)90418-9. [DOI] [PubMed] [Google Scholar]
  3. Hinze K., Thompson R. D., Ritter E., Salamini F., Schulze-Lefert P. Restriction fragment length polymorphism-mediated targeting of the ml-o resistance locus in barley (Hordeum vulgare). Proc Natl Acad Sci U S A. 1991 May 1;88(9):3691–3695. doi: 10.1073/pnas.88.9.3691. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. King P. J. Plant hormone mutants. Trends Genet. 1988 Jun;4(6):157–162. doi: 10.1016/0168-9525(88)90021-2. [DOI] [PubMed] [Google Scholar]
  5. Lincoln C., Britton J. H., Estelle M. Growth and development of the axr1 mutants of Arabidopsis. Plant Cell. 1990 Nov;2(11):1071–1080. doi: 10.1105/tpc.2.11.1071. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Schiefelbein J. W., Somerville C. Genetic Control of Root Hair Development in Arabidopsis thaliana. Plant Cell. 1990 Mar;2(3):235–243. doi: 10.1105/tpc.2.3.235. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Wilson A. K., Pickett F. B., Turner J. C., Estelle M. A dominant mutation in Arabidopsis confers resistance to auxin, ethylene and abscisic acid. Mol Gen Genet. 1990 Jul;222(2-3):377–383. doi: 10.1007/BF00633843. [DOI] [PubMed] [Google Scholar]
  8. de Souza L., King P. J. Mutants of Nicotiana plumbaginifolia with increased sensitivity to auxin. Mol Gen Genet. 1991 Dec;231(1):65–75. doi: 10.1007/BF00293823. [DOI] [PubMed] [Google Scholar]

Articles from Plant Physiology are provided here courtesy of Oxford University Press

RESOURCES