Media type: E-Article Title: Origin and Substitution of B Chromosomes in the Grasshopper Eyprepocnemis plorans Contributor: Henriques-Gil, Nuno; Arana, Pilar imprint: Society for the Study of Evolution, 1990 Published in: Evolution Language: English ISSN: 0014-3820; 1558-5646 Keywords: Notes and Comments Origination: Footnote: Access State: Open Access