Univalent-x-chromosome
Guides
Enchenopa latipes
wide-footed treehopper
Enchenopa latipes, commonly known as the wide-footed treehopper, is a species of treehopper in the family Membracidae. It is characterized by an enlarged, inflated pronotum typical of the family, which often resembles plant thorns or buds. The species has been documented in field observations on goldenrod stems in the Ozarks and adjacent regions. Males possess a unique XX-X0 sex determination system with a univalent X chromosome that exhibits distinctive segregation behavior during meiosis, segregating intact toward one spindle pole in late anaphase I after autosomes have initiated movement.