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用(亚洲棉×比克氏棉)F_1双二倍体作母本与陆地棉的不同色素腺体基因型进行杂交,获得5个具有不同色素腺体基因的[(亚洲棉X比克氏棉)F_1双二倍体X陆地棉]F_1种间三元杂种.不同色素腺体基因对种间三元杂种植株和花器形态性状元明显效应,但对其色素腺体表现和棉酚含量具有较大的影响.用陆地棉单节显性系1(Gl_2Gl_2gl_3gl_3)配制的种间三元杂种完全表现有比克氏棉的子叶色素腺体延缓形成特性;而用双隐性或显性无色素腺体陆地棉配制的种间三元杂种,虽其种子无色素腺体,但植株为少色素腺体类型.用有色素腺体陆地棉和陆地棉单节显性系2(gl_2gl_2Gl_3Gl_3)配制的种间三元杂种,其种子和植株均为有色素腺体类型.因此,用Gl_2Gl_2gl_3gl_3作为陆地棉亲本与比克氏棉及其后代进行杂交和回交,可以提高该性状的选择效果.
The genotypes of different pigment glands of female cotton cultivars were compared with those of two cotton genotypes (Asian cotton × Beak cotton) F_1 double diploid to obtain 5 [ ) F_1 double diploid X Upland cotton] F_1 intercropping ternary hybrids.The genes of different pigment gland genes had obvious effect on the interspecific hybrid plants and flower morphological traits, but had a significant effect on their glandular gland expression and gossypol content The interspecific hybrids of G. monocotyledones (Gl_2Gl_2gl_3gl_3) with Gossypium barbadense dominant single line G1 (Gl_2Gl_2gl_3gl_3) completely showed the delayed formation characteristics of the cotyledon pigmented glandular glandular cells. However, with the double recessive or dominant non-pigmented gland Plant interspecific hybrids of interspecific hybrids of G. hirsutum, although their seedless pigmented glands, were characterized by the absence of pigmented glands, and the species of pigmented glandular landraces and upland cotton monosomy2 (gl_2gl_2Gl_3Gl_3) Among the ternary hybrids, the seed and plant were both pigmented and glandular types, therefore, the selection effect of this trait could be improved by using Gl_2Gl_2gl_3gl_3 as the crosses and backcrosses of upland cotton parents and Bk cotton.