Genetic Polymorphism Under Therapy Genotypes From Cucumber (Cucumis sativus) And Sunflower (Helianthus annuus)

Dogan Ozdemir; Abdulrahman Mahmmoud Dogara

doi:10.23918/eajse.v10i3p5

Authors

Dogan Ozdemir Biology Education Department, Tishk International University, Erbil, Iraq https://orcid.org/0000-0002-6698-1329
Abdulrahman Mahmmoud Dogara Biology Education Department, Tishk International University, Erbil, Iraq https://orcid.org/0000-0003-0944-7282

DOI:

https://doi.org/10.23918/eajse.v10i3p5

Keywords:

DNA, Denaturation, Genetic Polymorphism, Genotype, Hybrid, Heterogeneity

Abstract

Seven F1 hybrids of Sunflower and Cucumber from two families were studied, both lines and hybrids of the first generation. The denaturations processes of kinetics of different genotypes isolated from DNA of Sunflower and Cucumber was investigated. The thermal denaturation of DNA macromolecules have proved high melting temperatures at sunflower hybrids, when compared with cucumber genotypes. This fact denotes the increased stability of DNA macromolecules. The level of heterogeneity has varied in dependence of genotype and it has correlated with the highest values of morphological and physiological parameters which determines the effect of hybrid vigor in the studies of Sunflower and Cucumber genotypes. The kinetics of denaturation processes, realized from two cucumber families, has proved that the first generation hybrids DNA macromolecules have higher melting temperature , with an increased content of G-C content (%) and also a higher level of heterogeneity (2σ%) from Sunflower, in comparison with parental lines. Molecular studies on Sunflower and Cucumber would be a stepping stone and of great advantage to agriculture, where farmers deliberately crossbreed different strains or varieties of plants to take advantage of heterosis, thereby producing hybrids with improved traits such as; high crop yields, a better disease resistance or enhanced agricultural productivity.

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