【摘要】 比克氏棉的红花大基斑性状渐渗到陆地棉，并选育出了稳定的红花大基斑陆地棉纯系（ＨＢＲＬ）。报道了这些红花(Ｒ^ｂｉｃ_３)大基斑(Ｒ^ｂｉｃ_２)陆地棉纯系的遗传连锁实验和连锁分析结果。大基斑(Ｒ^ｂｉｃ_２)对小基斑（Ｒ_２）和无基斑（ｒ_２）为显性，Ｒ^ｂｉｃ_２与Ｒ_２等位，Ｒ^ｂｉｃ_２、Ｒ_２和ｒ_２构成了复等位基因系列。Ｒ^ｂｉｃ_２与Ｌｃ_１连锁，Ｒ．Ｃ％＝３７．３１±２．４４．Ｒ^ｂｉｃ_２与Ｒ^ｂｉｃ_３紧密连锁，并且Ｒ^ｂｉｃ_３对Ｙ_１和ｙ_１具有显性上位作用。建议从比克氏棉渐渗到陆地棉的大基斑的基因符号定为Ｒ^ｂｉｃ_２，红花瓣的基因符号定为Ｒ^ｂｉｃ_３。更多还原

【Abstract】 The character of red petals with a large basal spot was transferred from Gossypium bickii into G. hirsutum L., and the pure lines （HBRL） with the character were obtained by Liang Zhenglan in 1988. Results of genetic analysis for G. hirsutum Pure line of red Petals （R^bic₃） and large basal spot （R^bic₂） were reported in the present study. The large basal spot was dominant to the small basal-spot and spotlessness of G. hirsutum. R^bic₂ was shown to be allelic to R₂ of G. hirsutum, and R^bic₂, D and r₂ were multiple alleles. R^bic₂ was found to be linked with Lc₁,, and linkage between R^bic₂ and Lc₁, was estimated at 37.31±2.44 centimorgans, The red petal （R^bic₃） was epistatic dominance to the yellow petal （Y₁） and cream petal （y₁）, and R^bic₃ is closely linked with R^bic₂. It is proposed that the introgressive gene of the large basal spot from G. bickii into G. hirsutum be assigned gene symbol R^bic₂, and the red petals be given the gene symbol R^bic₂.更多还原