Abstract
A total of 226 tomato (Lycopersicon esculentum Mill.) fruits sold in markets within three states in Southwestern Nigeria were purchased and differentiated into 14 varietal groups based on morphological parameters. The genomic DNA from the young apical leaves of the seeded plants were extracted and analyzed by the randomly amplified polymorphic DNA-polymerase chain reaction (RAPDPCR) technique. Seventy-four (74) amplified products were scored with 62.2% of them revealing polymorphism. The OPB-18 primer recorded the highest polymorphism (83.3%) and OPU-14 the least (44.4%). The dendrogram revealed 3 clusters. The genotypic relationships between varieties within clusters ranged from 2 in clusters 1 and 3 to 10 in cluster 2. Cluster 2 revealed 4 subgroups with two pairs of varieties (var. c and i and l and m) showing 100% similarities. The local names, place of cultivation and phenotypic characters expressed by the varieties were not suitable for varietal differentiation since phenotypically different fruits showed genotypic relatedness. The impression that tomato varieties from a particular geographical zone are genetically similar was therefore nullified.
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Claims 8
Claim · model-written summary
Of 74 amplified RAPD products scored in the tomato varieties, 62.2% were polymorphic.
- Taxon
- tomato
Solanum lycopersicumt0 - Outcome
- polymorphisme0
- Value
- 62.2%e0
- Setting
- Nigerian marketst0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Lycopersicon esculentum Mill.) varieties in Nigerian markets”
e0“Seventy-four (74) amplified products were scored with 62.2% of them revealing polymorphism”
Claim · model-written summary
The OPB-18 primer gave the highest polymorphism, 83.3%.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- polymorphisme0
- Value
- 83.3%e0
- Qualifier
- OPB-18 primere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Lycopersicon esculentum Mill.) varieties in Nigerian markets”
e0“The OPB-18 primer recorded the highest polymorphism (83.3%) and OPU-14 the least (44.4%)”
Claim · model-written summary
The OPU-14 primer gave the lowest polymorphism, 44.4%.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- polymorphisme0
- Value
- 44.4%e0
- Qualifier
- OPU-14e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Lycopersicon esculentum Mill.) varieties in Nigerian markets”
e0“The OPB-18 primer recorded the highest polymorphism (83.3%) and OPU-14 the least (44.4%)”
Claim · model-written summary
The dendrogram of the tomato varieties revealed three clusters.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- clusterse0
- Value
- 3 clusterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Lycopersicon esculentum Mill.) varieties in Nigerian markets”
e0“The dendrogram revealed 3 clusters”
Claim · model-written summary
Cluster 2 split into four subgroups, with two pairs of varieties showing 100% similarity.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- similaritiese0
- Value
- 100%e0
- Qualifier
- two pairs of varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Lycopersicon esculentum Mill.) varieties in Nigerian markets”
e0“Cluster 2 revealed 4 subgroups with two pairs of varieties (var. c and i and l and m) showing 100% similarities”
Claim · model-written summary
Genotypic relationships between varieties within clusters ranged from 2 in clusters 1 and 3 to 10 in cluster 2.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- genotypic relationships between varieties within clusterse0
- Value
- ranged from 2 in clusters 1 and 3 to 10 in cluster 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Lycopersicon esculentum Mill.) varieties in Nigerian markets”
e0“The genotypic relationships between varieties within clusters ranged from 2 in clusters 1 and 3 to 10 in cluster 2”
Claim · model-written summary
Local names, place of cultivation and phenotypic characters were not suitable for differentiating the varieties, since phenotypically different fruits were genotypically related.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- varietal differentiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Lycopersicon esculentum Mill.) varieties in Nigerian markets”
e0“The local names, place of cultivation and phenotypic characters expressed by the varieties were not suitable for varietal differentiation”
Claim · model-written summary
The idea that tomato varieties from one geographical zone are genetically similar was not supported.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- genetically similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato (Lycopersicon esculentum Mill.) varieties in Nigerian markets”
e0“The impression that tomato varieties from a particular geographical zone are genetically similar was therefore nullified”