Line × Tester Analysis for Morphological and Fruit Biochemical Traits in Eggplant (Solanum melongena L.) Using Wild Relatives as Testers

Wild relatives of eggplant are commonly exploited for eggplant improvement, but the genetic improvement relies on the information of the genetic basis of inheritance of traits. In this study, two eggplant lines, one with oriental and another with occidental cytoplasm, were crossed with four testers...

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Bibliographic Details
Published in:Agronomy (Basel) 2019-04, Vol.9 (4), p.185
Main Author: Kaushik, Prashant
Format: Article
Language:English
Subjects:
Acids
Biochemistry
Combining ability
Cytoplasm
eggplant
Estimates
Fruits
Genes
Genetic improvement
Heredity
Heterosis
Hybrids
Line × Tester analysis
Morphology
Software packages
Solanum melongena
Tomatoes
Variance analysis
wild relatives
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Summary:Wild relatives of eggplant are commonly exploited for eggplant improvement, but the genetic improvement relies on the information of the genetic basis of inheritance of traits. In this study, two eggplant lines, one with oriental and another with occidental cytoplasm, were crossed with four testers representing three wild species, namely, Solanum insanum, S.anguivi, and S. lichtensteinii. The Line × Tester cross produced a total of eight interspecific hybrids. Parents and their hybrids were evaluated for 3 biochemical, 12 morphological, and 8 Tomato Analyzer-based descriptors. A significant amount of variation was noticed for all 23 traits studied. The higher values for the specific combining ability (SCA) component were determined as compared to the general combining ability (GCA) component. The testers were more significant for most of the traits than the cultivated varieties. Positive heterosis was determined for the 12 characteristics and negative heterosis for the 11 attributes. Overall, S.anguivi, and S. lichtensteinii were better for the biochemical traits’ improvement, whereas S. insanum was a better tester for the morphological traits.
ISSN:2073-4395
2073-4395
DOI:10.3390/agronomy9040185