Abstract
Abstract The article colligates data of studies on the variability of quantitative and qualitative traits in mutant sunflower M 1 -M 3 generations affected by dimethyl sulfate (DMS) (0.01, 0.05 %) and gamma rays (120; 150 Gy), frequencies and range of mutations in M 2 and their inheritance in mutant families, chromosome aberrations in meiosis, as well as on the breeding and genetic value of induced mutants and possibilities of their use in breeding. The methodical peculiarities of the mutational breeding of the cross-pollinating crop were defined, and new mutants with changed features were created. Investigating new homozygous self-pollinated sunflower lines, we observed a more negative mutagenic impact of gamma irradiation (120 and 150 Gy) on the germinability of M 1 sunflower seeds in the field compared with the DMS effect (0.01 and 0.05 %). The field germinability of DMS-treated seeds was 83–87 % vs. 11–15 % of gamma-irradiated ones. The mutagenic effect of gamma rays (120 and 150 Gy) on M 1 meiosis was shown to be stronger than that of DMS (0.01 and 0.05 %). The percentage of cells with alterations varied within 15.79–18.78 % (120 Gy) and 20.38–25.26 % (150 Gy) compared to 0–0.16 % in the control. The effect of gamma rays on the frequency of morphoses in M1 was stronger, in particular, after exposure to 120 Gy or 150 Gy of gamma irradiation, the number of plants with alterations was 43 %, whereas after DMS treatment (0.01 and 0.05 %) this parameter averaged 27–28 %. We determined the inheritance of mutations of quantitative and qualitative traits, which are important for breeding, in mutant M2 families and selected mutant families with inherited altered traits that can be considered as mutations. Among the best mutations, there are morphological mutants with marker traits, mutants with increased content of oil in seeds, increased 1000-seed weight, increased contents of behenic, linoleic and palmitoleic acids as well as with absolute resistance to downy mildew.
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Claims 16
Claim · model-written summary
Mutational breeding methods were defined and new sunflower mutants created.
- Taxon
- sunflower
Helianthus annuust0 - Outcome
- new mutants with changed featurese0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The methodical peculiarities of the mutational breeding of the cross-pollinating crop were defined, and new mutants with changed features were created”
t0“Sunflower”
Claim · model-written summary
Gamma irradiation reduced M1 sunflower field germination more than DMS treatment.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- gamma irradiation (120 and 150 Gy)e0
- Outcome
- germinability of M 1 sunflower seedse0
- Direction
- more negativee0
- Comparator
- DMS effect (0.01 and 0.05 %)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we observed a more negative mutagenic impact of gamma irradiation (120 and 150 Gy) on the germinability of M 1 sunflower seeds in the field compared with the DMS effect (0.01 and 0.05 %)”
t0“Sunflower”
Claim · model-written summary
Field germination was 83–87% after DMS treatment.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- field germinability of DMS-treated seedse0
- Value
- 83–87 %e0
- Comparator
- gamma-irradiated onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The field germinability of DMS-treated seeds was 83–87 % vs. 11–15 % of gamma-irradiated ones”
t0“Sunflower”
Claim · model-written summary
Field germination was 11–15% after gamma irradiation.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- gamma-irradiated onese0
- Value
- 11–15 %e0
- Comparator
- DMS-treated seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The field germinability of DMS-treated seeds was 83–87 % vs. 11–15 % of gamma-irradiated ones”
t0“Sunflower”
Claim · model-written summary
Gamma irradiation had a stronger effect on M1 meiosis than DMS.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- gamma rays (120 and 150 Gy)e0
- Outcome
- M 1 meiosise0
- Direction
- strongere0
- Comparator
- DMS (0.01 and 0.05 %)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mutagenic effect of gamma rays (120 and 150 Gy) on M 1 meiosis was shown to be stronger than that of DMS (0.01 and 0.05 %)”
t0“Sunflower”
Claim · model-written summary
At 120 Gy, altered cells represented 15.79–18.78%.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 120 Gye0
- Outcome
- percentage of cells with alterationse0
- Value
- 15.79–18.78 %e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of cells with alterations varied within 15.79–18.78 % (120 Gy) and 20.38–25.26 % (150 Gy) compared to 0–0.16 % in the control”
t0“Sunflower”
Claim · model-written summary
At 150 Gy, altered cells represented 20.38–25.26%.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 150 Gye0
- Outcome
- percentage of cells with alterationse0
- Value
- 20.38–25.26 %e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of cells with alterations varied within 15.79–18.78 % (120 Gy) and 20.38–25.26 % (150 Gy) compared to 0–0.16 % in the control”
t0“Sunflower”
Claim · model-written summary
Altered cells represented 0–0.16% in controls.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- controle0
- Value
- 0–0.16 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared to 0–0.16 % in the control”
t0“Sunflower”
Claim · model-written summary
Gamma irradiation produced morphoses in 43% of plants.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 120 Gy or 150 Gy of gamma irradiatione0
- Outcome
- plants with alterationse0
- Value
- 43 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after exposure to 120 Gy or 150 Gy of gamma irradiation, the number of plants with alterations was 43 %”
t0“Sunflower”
Claim · model-written summary
DMS treatment produced morphoses in 27–28% of plants.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- DMS treatment (0.01 and 0.05 %)e0
- Outcome
- this parametere0
- Value
- 27–28 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after DMS treatment (0.01 and 0.05 %) this parameter averaged 27–28 %”
t0“Sunflower”
Claim · model-written summary
Mutations of quantitative and qualitative traits were inherited in M2 families.
- Taxon
- sunflowerHelianthus annuust0
- Material
- mutant M2 familiese0
- Outcome
- inheritance of mutations of quantitative and qualitative traitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We determined the inheritance of mutations of quantitative and qualitative traits, which are important for breeding, in mutant M2 families”
t0“Sunflower”
Claim · model-written summary
Mutant families with inherited altered traits were selected.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- mutant families with inherited altered traitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selected mutant families with inherited altered traits that can be considered as mutations”
t0“Sunflower”
Claim · model-written summary
Selected mutants had increased seed oil content.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- content of oil in seedse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mutants with increased content of oil in seeds”
t0“Sunflower”
Claim · model-written summary
Selected mutants had increased 1000-seed weight.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- 1000-seed weighte0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased 1000-seed weight”
t0“Sunflower”
Claim · model-written summary
Selected mutants had increased levels of behenic, linoleic, and palmitoleic acids.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- contents of behenic, linoleic and palmitoleic acidse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased contents of behenic, linoleic and palmitoleic acids”
t0“Sunflower”
Claim · model-written summary
Selected mutants showed absolute resistance to downy mildew.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- resistance to downy mildewe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“absolute resistance to downy mildew”
t0“Sunflower”
The same questions in other papers
radiation · growth · Helianthus annuus (common sunflower)Positive and negative results
10 papers in the same direction as this paper · 8 in the opposite direction
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See all 19 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.