Abstract
In order to compare the mutagenic difference between space environment and 60Co-γ irradiation,12 accessions of wheat varieties(lines) were treated with space environment by space flight 'ShiJian No.8' and 60Co-γ ray irradiation.Then the first and second generations of treatments were planted and observed on agronomic characters.The results showed:(i)Mutational direction and types in all of materials in space environment treatment were diversified;60Co-γ irradiation could induce a partial mutational direction in some special genotypes.(ii) The physiological damage of space environment was less than that of 60Co-γ irradiation,so it would take less generations to make the progenies stable.Although the mutational frequency of space environment was lower than that of 60Co-γ irradiation,the useful mutation obtained from space environment was relatively more than that from 60Co-γ irradiation,making it easier to obtain ideal wheat mutants or cultivars.(iii)Some materials sensitive to 60Co-γ irradiation could be selected and used for space breeding.The results in the present study could provide useful information for wheat space breeding in the future.
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Claims 7
Claim · model-written summary
Space exposure produced diverse mutation directions and types.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- space environment treatmente0
- Outcome
- Mutational direction and typese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mutational direction and types in all of materials in space environment treatment were diversified”
t0“Comparative study on mutagenic effects of space environment and 60Co-γ ray irradiation in wheat.”
Claim · model-written summary
Gamma irradiation produced partial mutation directions in some genotypes.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 60Co-γ irradiatione0
- Outcome
- partial mutational directione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“60Co-γ irradiation could induce a partial mutational direction in some special genotypes”
t0“Comparative study on mutagenic effects of space environment and 60Co-γ ray irradiation in wheat.”
Claim · model-written summary
Space exposure caused less physiological damage than gamma irradiation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- space environmente0
- Outcome
- physiological damagee0
- Direction
- lesse0
- Comparator
- 60Co-γ irradiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The physiological damage of space environment was less than that of 60Co-γ irradiation”
t0“Comparative study on mutagenic effects of space environment and 60Co-γ ray irradiation in wheat.”
Claim · model-written summary
Space exposure had lower mutation frequency than gamma irradiation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- space environmente0
- Outcome
- mutational frequencye0
- Direction
- lowere0
- Comparator
- 60Co-γ irradiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the mutational frequency of space environment was lower than that of 60Co-γ irradiation”
t0“Comparative study on mutagenic effects of space environment and 60Co-γ ray irradiation in wheat.”
Claim · model-written summary
Space exposure produced relatively more useful mutations than gamma irradiation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- space environmente0
- Outcome
- useful mutatione0
- Direction
- relatively moree0
- Comparator
- 60Co-γ irradiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the useful mutation obtained from space environment was relatively more than that from 60Co-γ irradiation”
t0“Comparative study on mutagenic effects of space environment and 60Co-γ ray irradiation in wheat.”
Claim · model-written summary
The authors inferred that fewer generations were needed to stabilize progeny after space treatment.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- less generations to make the progenies stablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it would take less generations to make the progenies stable”
t0“Comparative study on mutagenic effects of space environment and 60Co-γ ray irradiation in wheat.”
Claim · model-written summary
Materials sensitive to gamma irradiation were suggested for space breeding.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- selected and used for space breedinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some materials sensitive to 60Co-γ irradiation could be selected and used for space breeding”
t0“Comparative study on mutagenic effects of space environment and 60Co-γ ray irradiation in wheat.”
The same questions in other papers
climate site · pest · Triticum aestivum (wheat)Positive and negative results
3 in the opposite direction
- negative
- negative
- negative
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.