title: Chromosome knob patterns in Latin American maize.
mesh_terms: D005075:Biological Evolution; D002489:Central America; D002875:Chromosomes; D006570:Heterochromatin; D006824:Hybridization, Genetic; D009656:North America; D013020:South America; D003313:Zea mays
chemical_list: D006570:Heterochromatin