Fig. 4: Allelic diversity and expression pattern of the CmSI gene in different melon germplasms.

a Nucleotide variation at the si locus among 200 resequenced lines. The si allele was found in only M406, which suggested that the si allele was a spontaneous mutation and was not under selection during domestication or diversifying selection. b, c The expression pattern of the CmSI gene in 14 different melon germplasms and F1 and F2 of TopMark and M406. High CmSI expression levels were closely correlated with increased plant height among 14 different melon lines