Summary
Allotetraploidization is the creation of artificial allotetraploids. Allotetraploidization of maize can be achieved by restructuring a maize genome so that its chromosomes will not pair with those of the normal maize genome. The restructuring can be done by concentrating induced or naturally occurring visible and cryptic chromosome aberrations and qualitatively different genetic material into a single line by a recurrent selection type of breeding program. The basis of allotetraploidization is the presence of differential pairing affinity between normal and restructured chromosomes. Experiments demonstrate that differential pairing affinity factors occur naturally in exotic races and in standard corn belt inbred lines and that they may be readily induced by X-irradiation and chemical mutagens.
Similar content being viewed by others
Literature
Burnham, C.R.; Stout, J.T.; Weinheimer, W.H.; Kowles, R.V.; Phillips, R.L.: Chromosome pairing in maize. Genetics71, 111–126 (1972)
Doyle, G.G.: Preferential pairing in structural heterozygotes ofZea mays. Genetics48, 1011–1027 (1963)
Doyle, G.G.: Preferential pairing in trisomics ofZea mays. In: Chromosomes Today, Vol. 2. Edinburgh: Oliver and Boyd 1969
Doyle, G.G.: Autotetraploid gene segregation. Theor. Appl. Genet.43, 139–146 (1973)
Doyle, G.G.: A general theory of chromosome pairing based on the palindromic model of Sobell with modifications and amplifications. J. Theor. Biol.70, 171–184 (1978)
Doyle, G.G.; Coe, Jr., E.H.: A model for the synapsis of chromosomes utilizing interrupted complementary reverse repeats in DNA. Genetics71, s15 (1972)
Neuffer, M.G.; Coe, Jr., E.H.: Paraffin oil technique for treating corn pollen with chemical mutagens. Maydica (in press)
Riley, R.; Chapman, V.: Genetic control of the cytologically diploid behavior of hexaploid wheat. Nature182, 713–715 (1958)
Sears, E.R.: The aneuploids of common wheat. Proc. 1st Intern. Wheat Symp. Winnipeg, Canada, pp. 221–229 (1958)
Sobell, H.M.: Molecular mechanism for genetic recombination. Proc. Nat. Acad. Sci. (USA)69, 2483–2487 (1972)
Sobell, H.M.: A mechanism to activate branch migration between homologus DNA molecules in genetic recombination. Proc. Nat. Acad. Sci. (USA)72, 279–283 (1975)
Sybenga, J.: Allopolyploidization of autopolyploids. 1. Possibilities and limitations. Euphytica18, 355–371 (1969)
Sybenga, J.: Allopolyploidization of autopolyploids. 2. Manipulation of the chromosome pairing system. Euphytica22, 433–444 (1973)
Author information
Authors and Affiliations
Additional information
Communicated by P.L. Pfahler
Contribution from the Science and Education Administration, U.S. Department of Agriculture, and the Agronomy Department, University of Missouri, Columbia, Missouri, Missouri Agric. Exp. Sta. Journal Series No. 8092
Rights and permissions
About this article
Cite this article
Doyle, G.G. The allotetraploidization of maize. Theoret. Appl. Genetics 54, 103–112 (1979). https://doi.org/10.1007/BF01159463
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01159463