[Studying of genetic basts of cotton forms breeding with kleystogamic type of the flower].
Experimental works Nave been carried for definition of output of the cross pollination within cotton sorts and hybrids as initial background for researches in generic and breeding aspects of the hasmo and kleystogamic features of the flowers. As the result the low which defines the rate of vicinizm from 0.53 to 15.36% was stipulasted because defined cross pollination took place and brought to biological contamination of the from, line and gene collection and as the result the froms lost their genetic integrity and became geterozygotic, geterogenetic. Different types of splitting within the classesas 3 : 1, 15 : 1 with phenotype of monogenic (3 : 1) and digenic (15 : 1) differences of the accumulative polymerization were defined during studyng of the genetic control of the flower type of the interspecies hybrids of G. hirsutum L. and G.barbadense L. They possessed correspondently the following gene types: 1 : 2 : 1 (1Cg1Cg1cg2cg2 : 2Cg1cg1cg2cg2 : 1cg1cg1cg2cg2) and 1 : 2 : 2 : 4: : 1 : 2 : 1 : 2 : 1 -1) Cg1Cg1Cg2Cg2 - 1 ; 2) Cg1Cg1cg2cg2-2; 3) Cg1cg1Cg2Cg2-2; 4) Cg1cg1Cg2cg2-4; 5) Cg1Cg1cg2cg-1; 6) Cg1cg1cg2cg2-2; 7) cg1cg1Cg2Cg2-1; 8) cg1cg1Cg2cg2-2; 9) cg1cg1cg2cg2-1, were 1-8 possessed hazmogamic and the 9th class possessed kleystogamic gene type with double recessive. On its bases gene types with individual phenotype expression were defined in F2 and their correlation with the most important morphobilogical and agricultural important featureas was studied. Special attention has been given to the productivity of hybrid individuals and this is bases for developing of the new sorts of intensive type. Forms, families, lines, gene cjllections and sorts with isogenic and without isogenic determination of these features with hazmo and kleystogamic types of the flowers of G. hirsutum L. and G. barbadense L. prototypes were defined as the result of our researches based on untraditional methods of investigations of the hazmo and kleystogamic types of the flowers which do not have analogs in world cotton breeding.
Mukhiddinov
T I
TI
D002678:Chimera / Q000235:genetics*; D003433:Crosses, Genetic; D035264:Flowers / Q000235:genetics*; D003368:Gossypium / Q000235:genetics*