Fig. 4

Schematic diagram of synteny relationships of OpC2H2 genes. (A) Gray represents all collinear segments in the Opisthopappus genome, and red lines represent duplicated OpC2H2 gene pairs. The outermost circle shows the chromosome number, and second outer circle shows the density of each chromosome. (B) Synteny analyses of C2H2 genes between Opisthopappus and four representative species. Gray lines represent the collinear regions within Opisthopappus and other genomes, and red lines indicate the syntenic OpC2H2 gene pairs