使用gggenes这个R包 看官网 https://wilkox.org/gggenes/ gggenes is a ggplot2 extension for drawing gene arrow maps. Installing gggenes Install the stable version of gggenes from CRAN:

geom_gene_arrow() is a ggplot2 geom that represents genes with arrows. The start and end locations of the genes within their molecule(s) are mapped to the xmin and xmax aesthetics respectively. These start and end locations are used to determine the directions in which the arrows point. The y aesthetic must be mapped to the molecule(s). If you are drawing more than one molecule, and the numerical locations of the genes are not similar across molecules, you almost certainly want to facet the plot with scales = “free” to avoid drawing ridiculously large molecules with ridiculously tiny genes.

Because the resulting plot can look cluttered, a ggplot2 theme theme_genes is provided with some sensible defaults.

Often you will want a certain gene to be vertically aligned across the faceted molecules. make_alignment_dummies() generates a set of dummy genes that if added to the plot with geom_blank() will extend the range of each facet to visually align the selected gene across facets.

The suggested usage is to use geom_gene_arrow() with no fill, and then add a subgene layer over this:

To label subgenes, we can use geom_subgene_label(), which works similarly to geom_gene_label() with the major difference that it requires xsubmin and xsubmax aesthetics (not xmin and xmax).