Figure 3.

Collinearity analysis of heavy-metal-associated genes between Solanum tuberosum, Ipomoea triloba, Arabidopsis thaliana, Nicotiana attenuata, Zea mays, and Oryza sativa. Gray lines in the background indicate the collinear blocks within potato and other plant genomes, while the red lines highlight the syntenic StHMA pairs of orthologous genes. The species names with the prefixes “I. triloba”, “A. thaliana”, “N. attenuate”, “Z. mays”, and “O. sativa” indicate Ipomoea triloba, Arabidopsis thaliana, Nicotiana attenuata, Zea mays, and Oryza sativa, respectively. Blue color bars represent the chromosomes of different species. The chromosome number is labeled at the top or bottom of each chromosome.