Author(s)

Akmal A. Yuldashev¹, Guljan M. Duschanova², Miradkham F. Abzalov³, Gayrat N. Jurakulov¹

¹Department of Ecology and Botany of Andijan State University, Andijan, Uzbekistan.
²Tashkent Botanical Garden Named after Acad. F.N. Rusanova at the Institute of Botany of the Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan.
³Institute of Genetics and Experimental Plant Biology, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan.

For the first time, a comparative analysis of the structure of the apical meristem and the node of the main shoot of two forms of the indeterminate kind Namangan-77 and the determinant line of Determinant-2 and Determinant-3 of G. hirsutum in the kidney ding phase was carried out. In the apical meristem of the indeterminate form Namangan-77 is characterized by the recessive homozygous state of the mutant gene (in^lin^l) and the dominant homozygous, heterozygous state of the fruiting branch gene S-s: in^lin^lSS, in^lin^lSs, in^lin^lss—more pronounced vegetative, vegetative, with this, this form is predominated by the continuation of first-order shoots and the monopodial branching type with unlimited apical growth, accompanied by a uniform elongation of the internodes. In the apical meristem, in the forms of the determinant lines, Determinant-2 and Determinant-3 are characterized by the dominant homozygous state of the mutant gene (In^lIn^l) and the recessive homozygous state of the allelic gene (ss)—In^lIn^lss—there is a generative collateral kidney in the axillary leaf axial sinus, which is why these forms of the vegetative apex of the shoot when they transit to the reproductive state turn into a floral apical meristem and a sympodial branching type what happens through the development of inflorescences. Obviously, this is a consequence of a change in the phytohormonal status in the apical part of the stem as a result of the interaction of the mutant gene In^l and gene S. The node of the main stem in all forms was also studied, and a three-beam-three-lacuna type of structure was revealed, which is a fairly persistent characterizing feature of large taxa and can be used in their taxonomy.

Mutant, Gene, Allele, Anatomy, Stem, Indeterminate, Determinant, Monopodial, Sympodial

Yuldashev, A. , Duschanova, G. , Abzalov, M. and Jurakulov, G. (2020) Influence of the Interaction of the Mutant Inl Gene and the Type of Fruiting Branches ss on the Anatomical Features of the Stem in the Indeterminate and Determinant Forms of G. hirsutum L.. American Journal of Plant Sciences, 11, 538-548. doi: 10.4236/ajps.2020.114038.