CHEMICALLY INDUCED DWARF MUTANT LINE IN TRITICALE

CHEMICALLY INDUCED DWARF MUTANT LINE IN TRITICALE

The dwarf mutant line of hexaploid triticale was induced using seeds of tall triticale strain KS-50 treated with N-ethyl-N-nitrosourea. The effect of the mutant gene reducing the culm length by about 70 % is comparable with the most severe affecting genes Rht3 and Rht10 in wheat. This mutant line is...

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Bibliographic Details
Published in:Cereal research communications Vol. 26; no. 4; pp. 391 - 396
Main Authors: ŠVEC, MIROSLAV, MIKLOVIČOVÁ, MARTA, ČAPUTA, FRANTIŠEK
Format: Journal Article
Language:English
Published: Cereal Research Non-Profit Company 01-01-1998
Subjects:
Alleles
Breeding
Dominant genes
Genetic mutation
Genetics
Hexaploidy
Phenotypes
Rye
Spikelets
Triticale
Wheat
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Summary:The dwarf mutant line of hexaploid triticale was induced using seeds of tall triticale strain KS-50 treated with N-ethyl-N-nitrosourea. The effect of the mutant gene reducing the culm length by about 70 % is comparable with the most severe affecting genes Rht3 and Rht10 in wheat. This mutant line is characterised by a compact spike. It was proved that the culm length in this mutant line is determined by a single partially dominant gene and the spike length by a complete dominant gene. It seems that these two genes are completely linked, or by action of the mutagen only one gene with a different pleiotropic effect on individual characters was changed. The mutant line was shown to have reduced yield caused by shrivelling seeds, so that this mutation will probably be of little use in breeding.
ISSN:0133-3720
1788-9170
DOI:10.1007/bf03543516