Abstract
The characteristics of the dwarf curly leaf tomato (Lycopersicon esculentum Mill.) mutant, cu-3, were investigated via hybridization with the Curl, Cu, and dwarf, d cr , mutants. When Cu plants were crossed to cu-3 or d cr parents, F 1 plants expressed the Cu phenotype, whereas two parental and two nonparental types were present in each F 2 . The transgressive groups were the wild type (+), which developed normal expanded leaves, and the midvein-invisible type (MI), which developed extremely distorted curly leaves. Crosses between cu-3 and d cr plants produced nonparental wild-type plants in F 1 , and two parental and one wild type in F 2 . There was no allelism or linkage between cu-3 and Cu, d cr , or dpy (the dumpy mutant). Cu was epistatic to both cu-3 and d cr . The cu-3 allele was epistatic to d cr ; however, d cr plants (in the cu-3 + cu-3 d cr d cr genotype) could produce cu-3 progeny. The cu-3 plants always bred true, cu-3 hindered the Cu-type progeny from becoming a majority group in Cu and cu-3 hybridizations. Both cu-3 and cu-3 + caused >33% decrease in fruit size of Cu, d cr , +, and MI progeny of their Cu and d cr hybrids; a >50% decrease in seed number per fruit was evident in such progeny of the cu-3 hybrids.Key words: Lycopersicon esculentum Mill., L. pimpinellifolium (Jusl.) Mill., epistatic effects, recombinant types, transgressive groups.
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Claims 10
Claim · model-written summary
Crosses of Cu to cu-3 or d cr expressed the Cu phenotype in F1 and four types in F2.
- Taxon
- tomato
Solanum lycopersicumt0 - Material
- Cue0
- Outcome
- Cu phenotypee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When Cu plants were crossed to cu-3 or d cr parents, F 1 plants expressed the Cu phenotype, whereas two parental and two nonparental types were present in each F 2”
t0“tomato mutant”
Claim · model-written summary
The transgressive wild type had normal expanded leaves, while MI had extremely distorted curly leaves.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- midvein-invisible type (MI)e0
- Outcome
- extremely distorted curly leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The transgressive groups were the wild type (+), which developed normal expanded leaves, and the midvein-invisible type (MI), which developed extremely distorted curly leaves”
t0“tomato mutant”
Claim · model-written summary
Crosses between cu-3 and d cr produced wild-type F1 plants and three F2 types.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- cu-3 and d cre0
- Outcome
- nonparental wild-type plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crosses between cu-3 and d cr plants produced nonparental wild-type plants in F 1 , and two parental and one wild type in F 2”
t0“tomato mutant”
Claim · model-written summary
cu-3 showed no allelism or linkage with Cu, d cr, or dpy.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- cu-3e0
- Outcome
- no allelism or linkagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no allelism or linkage between cu-3 and Cu, d cr , or dpy”
t0“tomato mutant”
Claim · model-written summary
Cu was epistatic to cu-3 and d cr.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- Cue0
- Outcome
- epistatic to both cu-3 and d cre0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cu was epistatic to both cu-3 and d cr”
t0“tomato mutant”
Claim · model-written summary
cu-3 was epistatic to d cr, although d cr plants could yield cu-3 progeny.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- cu-3 allelee0
- Outcome
- epistatic to d cre0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cu-3 allele was epistatic to d cr ; however, d cr plants (in the cu-3 + cu-3 d cr d cr genotype) could produce cu-3 progeny”
t0“tomato mutant”
Claim · model-written summary
cu-3 plants bred true.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- cu-3 plantse0
- Outcome
- bred truee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cu-3 plants always bred true”
t0“tomato mutant”
Claim · model-written summary
cu-3 hindered Cu-type progeny from becoming the majority in Cu by cu-3 crosses.
- Taxon
- tomatoSolanum lycopersicumt0
- Gene
- cu-3e0
- Outcome
- Cu-type progenye0
- Direction
- hinderede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cu-3 hindered the Cu-type progeny from becoming a majority group in Cu and cu-3 hybridizations”
t0“tomato mutant”
Claim · model-written summary
cu-3 and cu-3 + reduced fruit size of several hybrid progeny by more than 33%.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- cu-3 and cu-3 +e0
- Outcome
- fruit sizee0
- Direction
- decreasee0
- Value
- >33%e0
- Comparator
- Cu, d cr , +, and MI progenye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both cu-3 and cu-3 + caused >33% decrease in fruit size of Cu, d cr , +, and MI progeny of their Cu and d cr hybrids”
t0“tomato mutant”
Claim · model-written summary
cu-3 hybrids had over 50% fewer seeds per fruit.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- cu-3 hybridse0
- Outcome
- seed number per fruite0
- Direction
- decreasee0
- Value
- >50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a >50% decrease in seed number per fruit was evident in such progeny of the cu-3 hybrids”
t0“tomato mutant”