CHARACTERISTICS OF QUALITY TRAITS OF COTTON GENETIC COLLECTION AND THEIR INTERRELATION

A. K. Rakhimov

doi:10.5281/zenodo.10515018

A. K. Rakhimov

Abstract. We discuss the problems of genetic qualitative traits of the cotton G. hirsutum L. The regularities of inheritance and splitting in F2 in 23 variants of joint inheritance of 9 qualitative traits are determined and it is found that within the species G. hirsutum L., the presence of an anthocyanin spot at the base of flower petals is controlled by two non-allelic genes with complete dominance of the presence of an anthocyanin spot and joint inheritance and cleavage in F2 of five variants of the sign "presence - absence" of an anthocyanin spot at the base of the petals of a flower with such signs as the shape of the leaf and bracts. Plant coloration, color of flower petals, "presence - absence" of leafy nectaries are observed both trigenous and tetragenic control. In the functioning of their genes, inter-allelic and non-allelic gene interactions (polymerization) are observed.

Keywords: cotton, qualitative traits, genotype, phenotype, inheritance, genetic collection, polymeria, epistasis, genetic analysis, self-pollination, inter-allelic and non-allelic gene interactions, monohybrid and dihybrid crosses

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