shell pip install biopython python from Bio.Graphics import BasicChromosome from reportlab.lib import colors chr = BasicChromosome.Chromosome("Example") chr.addFeature(BasicChromosome.Feature( color=colors.blue, label="Region 1" )) chr.addFeature(BasicChromosome.Feature( color=colors.red, label="Region 2" )) chr.draw(format="linear", pagesize=(15, 4), fragments=1, start=0, end=3000000) chr.write("linear_chromosome.pdf", "PDF")