Molecular and General Genetics MGG

, Volume 200, Issue 2, pp 211–219 | Cite as

Spm and I element changes with the a-m2 8004 allele in maize

  • L. V. Reddy
  • Peter A. Peterson
Article

Summary

Among the mobile element systems in maize, the En (Spm) system (En — the regulatory element and I the receptive element — a nonfunctional En) has several interesting aspects of control of gene expression (En and Spm are homologous in structure and activity). One of the alleles arising from the Spm group included the a-m2 8004 allele that has a low spotting pattern and unique ringed areas. The interest in this allele is that Spm or En will induce it to co-express the A phenotype and mutability. Several exceptions of the allele were analyzed. Two are Spm changes and two are I changes. The analysis shows that the heritable changes include I changes that are co-expressed in various grades of color and different degrees of mutability. All these changes occur with I at the locus. The Spm changes also include changes in mutability patterns and a mottling pattern.

Keywords

Color Gene Expression Maize Regulatory Element Interesting Aspect 

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References

  1. Brink RA (1954) Very light variegated pericarp in maize. Genetics 39:724–740Google Scholar
  2. Brink RA, Nilan RA (1952) The relation between light variegated and medium variegated pericarp in maize. Genetics 37:519–544Google Scholar
  3. Fincham JRS, Sastry GRK (1974) Controlling elements in maize. Annu Rev Genet 8:12–50Google Scholar
  4. Gierl A, Schwarz-Sommer Zs, Saedler H (1985) Molecular interactions between the components of the En-I transposable element system of Zea mays. EMBO 4:579–583Google Scholar
  5. Gorman MB, Peterson PA (1978) The interaction of controlling element components in a tissue culture system. Maydica 23:173–186Google Scholar
  6. McClintock B (1946) Maize genetics. Carnegie Inst of Wash Year Book 45:176Google Scholar
  7. McClintock B (1947) Cytogenetic studies of maize and neurospora Carnegie Inst Wash. Year Book 46:146–152Google Scholar
  8. McClintock B (1948) Mutable loci in maize. Carnegie Inst Wash Year Book 47:155Google Scholar
  9. McClintock B (1951) Mutable loci in maize. Carnegie Inst Wash Year Book 50:174–181Google Scholar
  10. McClintock B (1952) Chromosome organization and genetic expression. Cold Spring Harbor Symp Quant Biol 16:374–471Google Scholar
  11. McClintock B (1953) Mutation in maize. Carnegie Inst of Wash Year Book 52:227Google Scholar
  12. McClintock B (1954) Mutations in maize and chromosomal aberrations in Neurospora. Carnegie Inst Wash Year Book 53:254Google Scholar
  13. McClintock B (1956) Mutation in maize. Carnegie Inst Wash Year Book 55:323Google Scholar
  14. McClintock B (1958) The suppressor-mutator system of control of gene action in maize. Carnegie Inst Wash Year Book 57:414–429Google Scholar
  15. McClintock B (1961) Further studies of the suppressor-mutator system of control of gene action in maize. Carnegie Inst Wash Year Book 60:469–476Google Scholar
  16. McClintock B (1963) Further studies of gene-control system in maize. Carnegie Inst Wash Year Book 62:486–493Google Scholar
  17. McClintock B (1968) The states of a gene locus in maize. Carnegie Inst Wash Year Book 66:20–28Google Scholar
  18. Nevers P, Saedler H (1977) Transposable genetic elements as agents of gene instability and chromosomal rearrangements. Nature 268:109–115Google Scholar
  19. O'Reilly C, Shepherd NS, Pereira A, Schwarz-Sommer Zs, Bertram I, Robertson DS, Peterson PA, Saedler H (1985). Molecular cloning of the al locus of Zea mays using the transposable elements En and Mul. EMBO J 4:Google Scholar
  20. Pereira A, Schwarz-Sommer Zs, Gierl A, Bertram I, Peterson PA, Saedler H (1985) Genetic and molecular analysis of the Enhancer (En) transposable element system of Zea mays. EMBO J 4:17–23Google Scholar
  21. Peterson PA (1953a) The mutable pale green locus. Maize Genetics Coop Newsletter 27:58Google Scholar
  22. Peterson PA (1953b) A mutable pale green locus in maize. Genetics 38:682–683Google Scholar
  23. Peterson PA (1960) The pale green mutable system in maize. Genetics 45:115–133Google Scholar
  24. Peterson PA (1961) Mutable al of the En system in maize, 46:759–771Google Scholar
  25. Peterson PA (1965) A relationship between the Spm and En control systems in maize. Am Nat 99:391–398Google Scholar
  26. Peterson PA (1966) Phase variation of regulatory elements in maize. Genetics 54:249–256Google Scholar
  27. Peterson PA (1970) Controlling elements and mutable loci in maize: their relationship to bacterial episomes. Genetica 41:33Google Scholar
  28. Peterson PA (1976) Change in state following transposition of a regulatory element of the enhancer system in maize. Genetics 84:469–483Google Scholar
  29. Peterson PA (1981) Instability among the components of a regulatory element transposon in maize. Cold Spring Harbor Symp Quant Biol 45:447–455Google Scholar
  30. Peterson PA (1985) The isolation of En-I in the wx-84-4 allele. Maize Genetics Coop Newsletter 59:3Google Scholar
  31. Reddy LV, Peterson PA (1984) Enhancer transposable element induced changes at the A locus in maize: the a-m-1 6078 allele. Mol Gen Genet 194:124–137Google Scholar
  32. Schwarz-Sommer Zs, Gierl A, Klosgen RB, Wienand U, Peterson PA, Saedler H (1984) The Spm (En) transposable element controls the excision of a 2-kb DNA insert at the wx m-8 allele of Zea mays. EMBO 3:1021–1028Google Scholar

Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • L. V. Reddy
    • 1
  • Peter A. Peterson
    • 1
  1. 1.Agronomy DepartmentIowa State UniversityAmesUSA

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