Fig. 3From: Genome-wide identification and structural analysis of the BMP gene family in Triplophysa dalaicaAnalysis of BMP gene covariance in T. dalaica. The gray line indicates the genome covariance of T. dalaica, and the colored line connecting the BMP genes indicates the duplication of BMP genes in T. dalaica. The position of the BMP genes on the chromosomes is indicated by the short black line, and the density of the genes on each chromosome is shown at the same timeBack to article page