Abstract
In the article, the first time genes of anthocyanin pigmentation Rp and Rstv appeared in cotton plant interacting complementarily. Recessive homozygosis rprрrstvrstv conditions the development of green colour. The gen Rp conditions the development of anthocyanin in all organs of plants, Rstv only exists on the stalk and in the nerves of leaves, the flower is uncolored, the boll is green. The plants’ existence in genotype of both dominant equilocal genes (Rp, Rst) provides a high rate of biosynthesis of anthocyanin—dark red. Inheritance of the chlorophylls “a” + “b” and “a” and “b” quantity in anthocyanin coloured L-2 and L-3 lines of F1 and F2 generations. The quantity of chlorophylls in anthocyanin coloured L-3 line was defined 1.0 - 1.5 times higher and participation of the gen Rstv responsible for anthocyanin colour in chlorophylls biosynthesis was also defined. Apparently, in the line L-3 in Rstv is localized, there are gens which are responsible for the quantity of chlorophyll or Rstv has pleiotropic effects on the quantity of chlorophyll. It is proved with low quantity of chlorophyll in green coloured plants by recessive homozygote condition rprprstvrstv green colour.
Highlights
Research of the anthocyanin pigmentation genetics is of great interest for explanation of the stages of realization of genetic information in ontogenesis
Line-2 with a palmate-lobed leaf shape, anthocyanin coloration in all parts of plant with unsaturated type of fruit branches, chlorophyll content “a” + “b”, 1.32 ± 0.14, chlorophyll “a” 0.87 ± 0.11, chlorophyll “c” 0.39 ± 0.16 was seen from the varietal population of red-leafed Akala, kindly provided by Prof
Line-3 with a palmate-lobed leaf shape and localization of anthocyanin coloration on the stem and veins of the leaf blade, yellowish flower, capsule green, chlorophyll content “a” + “b”, 1.70 ± 0.37, “a” 1.16 ± 0.11, “b”, 0.62 ± 0.11 isolated from the varietal population of Rowden Mavloni
Summary
Research of the anthocyanin pigmentation genetics is of great interest for explanation of the stages of realization of genetic information in ontogenesis. Harland [2] proposed symbolism of anthocyanin pigmentation genes and classified their phenotypic manifestation according to organs. Kohel [4] assigned the gene responsible for the anthocyanin coloration of the plant R1 to the III linkage group, and the R2 gene that controls anthocyanin spot at the base of the flower petals, belongs to I. It has been studied anthocyanin pigmentation inheritance and its relationship with the shape of the leaf blade on the lines of the cotton genetic collection [5] [6] [7]. According to a number of authors [8] [9] [10] [11] in the ontogenetic development of cotton, the chlorophyll content changes and reaches its maximum in the phase of mass flowering
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