Abstract
Genetic analysis for immature fruits color was carried out using C. chinense accession 'S3010' that has dark green immature fruits and C. frutescens accession 'S3212' that has yellowish white immature fruit color. The F_2 population showed continuous and polymodal curve on frequency distribution of immature fruit color. Their segregation on dark green, green and yellowish white in immature fruit was fitted to 12:3:1. All of the fruits in BCP1 population showed dark green, however the segregation of BCP2 population was not fitted with 2:1:1. The calculated effective factor was 1.8. The above results showed the immature fruit color (dark green, green and yellowish white) is controlled by two dominant epistasis loci mainly. And some of quantitative gene loci controlled the depth of the green in immature fruit color.