Articles
Genetic diversity in tomato (Solanum lycopersicum L.) genetic resources collected from the Aegean Region as revealed by agromorphological traits
Article number
1297_23
Pages
167 – 174
Language
English
Abstract
In this study morphological characterization was carried out on 55 different tomato accessions collected from provinces in the Aegean Region (2014, 2015 and 2016) and on 3 different registered tomato varieties belong to Aegean Agricultural Research Institute.
All populations were characterized in terms of 20 morphological features.
Morphological data was analyzed by cluster and principal component analyses.
The first six components with co-efficient values greater than 1.0 together explained 79.59% of the total variance present in the data set.
Scores of the first three components which accounted for 57.12% of the total variation were highly correlated to characters related fruit shoulder shape, width of pedicel scar, shape of pistil scar, ribbing at calyx end, fruit width, number of locules, intensity of greenback (green shoulder), exterior color of mature fruit, flesh color of perikarp, fruit length, fruit weight, plant growth type, presence of green (shoulder) trips on the fruit and blossom end shape.
A wide variation was observed among the populations.
As a result of the clustering analysis, 2 main groups and 6 subgroups were formed.
There were 2 subgroups in the first main group and 4 subgroups in the second main group and tomato accessions were identified according to this analysis.
All populations were characterized in terms of 20 morphological features.
Morphological data was analyzed by cluster and principal component analyses.
The first six components with co-efficient values greater than 1.0 together explained 79.59% of the total variance present in the data set.
Scores of the first three components which accounted for 57.12% of the total variation were highly correlated to characters related fruit shoulder shape, width of pedicel scar, shape of pistil scar, ribbing at calyx end, fruit width, number of locules, intensity of greenback (green shoulder), exterior color of mature fruit, flesh color of perikarp, fruit length, fruit weight, plant growth type, presence of green (shoulder) trips on the fruit and blossom end shape.
A wide variation was observed among the populations.
As a result of the clustering analysis, 2 main groups and 6 subgroups were formed.
There were 2 subgroups in the first main group and 4 subgroups in the second main group and tomato accessions were identified according to this analysis.
Authors
S. Binbir, A. Kahraman, S. Mutlu, M.A. Haytaoğlu
Keywords
tomato (Solanum lycopersicum L.), agromorphological characterization, populations, principal component analyses (PCA), cluster analyses
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