Abstract
Spontaneous or induced mutants, with desirable changes in particular characters have been a key material for gene discovery, mapping, functional genomics and breeding in many crops including tomato. The present investigation was undertaken to study the frequency and spectrum of macro-mutations of gamma rays, EMS and their combinations in “Patharkutchi,” the highly adaptable and popular cultivar of West Bengal. The dry seeds were irradiated with 50, 100, 150, 200 and 250 Gy gamma rays. Pre-soaked seeds of this genotype (6 h, in water) were treated with 0.05, 0.10, 0.15, 0.20 and 0.25% ethyl methane sulphonate (EMS) for 8 h at 25 ± 2 oC. Gamma irradiated seeds of this genotype were also pre-soaked (6 h, in water) before treating with 0.15 % EMS solution for 8 h at 25 ± 2 oC as combination treatment. Combination of gamma radiation and EMS caused more damage followed by EMS treatment and gamma radiation, alone in M1 generation. Gamma irradiation (50-150 Gy) was most efficient followed by 0.05- 0.10 % EMS and their combination treatment in inducing wide array of macro-mutation in tomato. One mutant “Dark green fruit” could be isolated from the M2 population of Patharkutchi treated by 150 Gy gamma radiation. This “Dark green fruit” mutant with higher average lycopene (7.49 mg/100 g fresh) and ascorbic acid (35.86 mg/100 g fresh) contents in the ripe fruits emerged as a promising genetic resource for further utilization in breeding tomato for enhancement of lycopene and ascorbic acid content in the fruits.
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Claims 6
Claim · model-written summary
Combined gamma radiation and EMS caused the most M1 damage.
- Organ / stage
- M1 generatione0
- Treatment
- Combination of gamma radiation and EMSe0
- Outcome
- damagee0
- Direction
- moree0
- Comparator
- EMS treatment and gamma radiation, alonee0
Not reportedTaxon
Verbatim
e0“Combination of gamma radiation and EMS caused more damage followed by EMS treatment and gamma radiation, alone in M1 generation”
Claim · model-written summary
Gamma irradiation at 50-150 Gy was most efficient at inducing macro-mutations.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Gamma irradiation (50-150 Gy)e0
- Outcome
- macro-mutatione0
- Direction
- most efficiente0
- Comparator
- 0.05- 0.10 % EMS and their combination treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gamma irradiation (50-150 Gy) was most efficient followed by 0.05- 0.10 % EMS and their combination treatment in inducing wide array of macro-mutation in tomato”
Claim · model-written summary
A Dark green fruit mutant was isolated after 150 Gy gamma radiation.
Not reportedTaxon
Verbatim
e0“One mutant “Dark green fruit” could be isolated from the M2 population of Patharkutchi treated by 150 Gy gamma radiation”
Claim · model-written summary
The Dark green fruit mutant had higher lycopene content of 7.49 mg/100 g fresh.
- Material
- Dark green fruite0
- Organ / stage
- ripe fruitse0
- Outcome
- lycopenee0
- Direction
- highere0
- Value
- 7.49 mg/100 g freshe0
Not reportedTaxon
Verbatim
e0“This “Dark green fruit” mutant with higher average lycopene (7.49 mg/100 g fresh) and ascorbic acid (35.86 mg/100 g fresh) contents in the ripe fruits”
Claim · model-written summary
The mutant had higher ascorbic acid content of 35.86 mg/100 g fresh.
- Material
- Dark green fruite0
- Organ / stage
- ripe fruitse0
- Outcome
- ascorbic acide0
- Direction
- highere0
- Value
- 35.86 mg/100 g freshe0
Not reportedTaxon
Verbatim
e0“This “Dark green fruit” mutant with higher average lycopene (7.49 mg/100 g fresh) and ascorbic acid (35.86 mg/100 g fresh) contents in the ripe fruits”
Claim · model-written summary
The mutant was considered promising for breeding higher lycopene and ascorbic acid in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- promising genetic resourcee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“emerged as a promising genetic resource for further utilization in breeding tomato for enhancement of lycopene and ascorbic acid content in the fruits”
The same questions in other papers
radiation · pest · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- 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.