Expression of xanthine dehydrogenase activity during embryonic development of Drosophila melanogaster |
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| Authors: | C D Sayles L W Browder J H Williamson |
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| Affiliation: | Department of Biology, University of Calgary, Calgary, Alberta, Canada |
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| Abstract: | The contributions of oogenesis and zygotic genome expression to xanthine dehydrogenase activity during embryogenesis were investigated utilizing the mal and ry2 mutants. In vitro complementation experiments demonstrated the presence of the mal+ complementation factor in the oocyte, suggesting an explanation for the mal maternal effect. The ry+ complementation factor synthesized from paternal template was detected at gastrulation. This is the earliest detection of a paternal enzyme during nonmammalian embryonic development. |
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