Media type: E-Article Title: Origin and Substitution of B Chromosomes in the Grasshopper Eyprepocnemis plorans Contributor: Henriques-Gil, Nuno; Arana, Pilar imprint: Oxford University Press (OUP), 1990 Published in: Evolution Language: Not determined DOI: 10.2307/2409449 ISSN: 0014-3820 Keywords: General Agricultural and Biological Sciences ; Genetics ; Ecology, Evolution, Behavior and Systematics Origination: Footnote: Access State: Open Access