Back Article

Figure 1. 

Color variation of immature fruits in the F₂ population. (a) The fruit performance of two parental lines and F₁ population. (b) The classification of fruit color in F₂ population. (c) Frequency distribution for fruit color showing phenotypic variation in F₂ population.

Figure 2. 

Distribution of ΔSNP-index and ED⁴ values on 12 chromosomes. (a) Distribution of ΔSNP-index on chromosomes of EW-pool and EG-pool. x-axis: the length of chromosomes; y-axis: the value of ΔSNP-index; blue and green lines: 95% and 99% confidence intervals, respectively; gray dot: ΔSNP-index; red: the results of sliding window analysis. (b) Distribution of ED⁴ values on 12 chromosomes. X-axis: the position of the chromosome; Y-axis: the value of ED⁴. Red lines: 99% confidence intervals.

Figure 3. 

Variation of CaGLK gene (cDNA sequence and DNA sequence in B1-2). (a) Multiple sequence alignment analysis of CaGLK cDNA sequence among reference genome, D50 and B1-2. (b) Structure and variation sites of CaGLK gene in the DNA sequence. The grid represents the exon, the black line represents the intron, and the red base is the deletion part.

Figure 4. 

KASP genotyping of GLK^A/G variant associated with white color fruit for the F₂ population. Randomly selected 184 F₂ individual plants were classified into three genotypes. Each dot represents a certain genotype. Blue dots represent CaGLK^A genotype, which produce white fruit; red dots represent CaGLK^G genotype, which produce green fruit; and purple dots represent heterozygous genotype. Black dots represent non template control (NTC).

Figure 5. 

KASP genotyping of GLK^A/G variant associated with white color fruit for pepper germplasm accessions. Each dot represents a certain genotype. Homozygous genotypes are marked with blue (CaGLK^A) and red (CaGLK^G) dots, respectively, and heterozygous genotypes are marked with purple dots. Black dots indicates no template control (NTC). A natural population, comprising 113 germplasm accessions were tested.