Wolbachia is a genus of bacteria that infect cells of invertebrates. Surveys have found that up to a fifth of insect species have at least some individuals infected with Wolbachia. Pathogen or parasite? This endosymbiont (a symbiont that lives inside its host) bacteria can have many effects on its host, including killing offspring and changing the sex of offspring. Ary Hoffmann from the University of Melbourne in Australia, Michael Turelli from the University of California at Davis, and their associates have been studying Wolbachia infections in populations of Drosophila simulans from California. From the initial infection around 1980, Wolbachia infection spread northward across the state during the 1980s and 1990s. The most striking manifestation of infection in this fly species is cytoplasmic incompatibility: offspring produced in crosses where males are infected and the females are uninfected tend to die early in development. In crosses between infected males and infected females the offspring develop normally Females transmit the
Wolbachia is a genus of bacteria that infect cells of invertebrates. Surveys have found that up to a fifth of insect species have at least some individuals infected with Wolbachia. Pathogen or parasite? This endosymbiont (a symbiont that lives inside its host) bacteria can have many effects on its host, including killing offspring and changing the sex of offspring. Ary Hoffmann from the University of Melbourne in Australia, Michael Turelli from the University of California at Davis, and their associates have been studying Wolbachia infections in populations of Drosophila simulans from California. From the initial infection around 1980, Wolbachia infection spread northward across the state during the 1980s and 1990s. The most striking manifestation of infection in this fly species is cytoplasmic incompatibility: offspring produced in crosses where males are infected and the females are uninfected tend to die early in development. In crosses between infected males and infected females the offspring develop normally Females transmit the
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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