title: Rectangularity, speciation, and chromosome architecture.
mesh_terms: D000818:Animals; D001483:Base Sequence; D005075:Biological Evolution; D002875:Chromosomes / Q000502:physiology*; D003433:Crosses, Genetic; D004247:DNA / Q000235:genetics; D005796:Genes; D005843:Geography; D006110:Grasshoppers / Q000235:genetics; D013045:Species Specificity
chemical_list: D004247:DNA