[Genetic analysis for introgressive genes of petal color from Gossypium bickii to G. hirsutum L].
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 (R3bic) and large basal spot (R2bic) were reported in the present study. The large basal spot was dominant to the small basal-spot and spotlessness of G. hirsutum. R2bic was shown to be allelic to R2 of G. hirsutum, and R2bic, R2 and r2 were multiple alleles. R2bic was found to be linked with Lc1, and linkage between R2bic and Lc1 was estimated at 37.31 +/- 2.44 centimorgans, The red petal (R3bic) was epistatic dominance to the yellow petal (Y1) and cream petal (y1), and R3bic is closely linked with R2bic. It is proposed that the introgressive gene of the large basal spot from G. bickii into G. hirsutum be assigned gene symbol R2bic, and the red petals be given the gene symbol R3bic.
He
J X
JX
Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China.
Jiang
R Q
RQ
Zhang
X X
XX
Li
Z S
ZS
Zhao
G Z
GZ
D003116:Color; D017343:Genes, Plant / Q000235:genetics*; D008040:Genetic Linkage / Q000235:genetics*; D003368:Gossypium / Q000235:genetics*