Abstract
Full text: Seed samples of 9 inbreds were treated with MNU. Mutant individuals were visually selected in M{sub 2} and M{sub 3}. Mutability was determined in 100 loci by crossing induced mutants with some well-known natural mutants obtained from the U.S. Association of Corn Geneticists. Only viable mutants characterised with distinct stable traits connected with kernel texture and mature plant were taken for tests. Mapping of the expected new mutants was realised through A-B translocations and marker lines. Evaluation of the mutant alleles' effect on yield and quality of biomass in inbreds and heterotic hybrids was done by the standard methods. The results show the ability of artificial mutagens to induce mutations in previously known loci. The genotype of the inbreds greatly affects the probability of mutation occurrence in a new locus. Due to the mutagen effect, independently inherited complexes of traits or naturally polygenic traits may become monogenic. This results in simplified inheritance, in an increase in heritability and thus in high effectiveness of selection. (author)
Mashnenkov, A S
[1]
- Krasnodar Research Institute of Agriculture, Krasnodar (USSR)
Citation Formats
Mashnenkov, A S.
Induced mutagenesis as a source of new mutations in maize (Zea mays L.).
IAEA: N. p.,
1990.
Web.
Mashnenkov, A S.
Induced mutagenesis as a source of new mutations in maize (Zea mays L.).
IAEA.
Mashnenkov, A S.
1990.
"Induced mutagenesis as a source of new mutations in maize (Zea mays L.)."
IAEA.
@misc{etde_20238379,
title = {Induced mutagenesis as a source of new mutations in maize (Zea mays L.)}
author = {Mashnenkov, A S}
abstractNote = {Full text: Seed samples of 9 inbreds were treated with MNU. Mutant individuals were visually selected in M{sub 2} and M{sub 3}. Mutability was determined in 100 loci by crossing induced mutants with some well-known natural mutants obtained from the U.S. Association of Corn Geneticists. Only viable mutants characterised with distinct stable traits connected with kernel texture and mature plant were taken for tests. Mapping of the expected new mutants was realised through A-B translocations and marker lines. Evaluation of the mutant alleles' effect on yield and quality of biomass in inbreds and heterotic hybrids was done by the standard methods. The results show the ability of artificial mutagens to induce mutations in previously known loci. The genotype of the inbreds greatly affects the probability of mutation occurrence in a new locus. Due to the mutagen effect, independently inherited complexes of traits or naturally polygenic traits may become monogenic. This results in simplified inheritance, in an increase in heritability and thus in high effectiveness of selection. (author)}
place = {IAEA}
year = {1990}
month = {Jan}
}
title = {Induced mutagenesis as a source of new mutations in maize (Zea mays L.)}
author = {Mashnenkov, A S}
abstractNote = {Full text: Seed samples of 9 inbreds were treated with MNU. Mutant individuals were visually selected in M{sub 2} and M{sub 3}. Mutability was determined in 100 loci by crossing induced mutants with some well-known natural mutants obtained from the U.S. Association of Corn Geneticists. Only viable mutants characterised with distinct stable traits connected with kernel texture and mature plant were taken for tests. Mapping of the expected new mutants was realised through A-B translocations and marker lines. Evaluation of the mutant alleles' effect on yield and quality of biomass in inbreds and heterotic hybrids was done by the standard methods. The results show the ability of artificial mutagens to induce mutations in previously known loci. The genotype of the inbreds greatly affects the probability of mutation occurrence in a new locus. Due to the mutagen effect, independently inherited complexes of traits or naturally polygenic traits may become monogenic. This results in simplified inheritance, in an increase in heritability and thus in high effectiveness of selection. (author)}
place = {IAEA}
year = {1990}
month = {Jan}
}