Structure of ovaries in scale insects. i. pseudococcidae,kermesidae, eriococcidae,and cryptococcidae (INSECTA,hemiptera, COCCINEA) |
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| Affiliation: | 1. Institute of Zoology, Jagiellonian University, R. Ingardena 6, PL-30060 Kraków, Poland;1. Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Krakow, Poland;2. The University Hospital in Krakow, Krakow, Poland;3. 2nd Department of Surgery, Jagiellonian University Medical College, Krakow, Poland;1. Carnivore Ecology Laboratory, Forest and Wildlife Research Center, Mississippi State University, Mississippi State, 39759 MS, USA;2. Department of Wildlife, Fish and Conservation Biology, University of California Davis, Davis, 95616 CA, USA;3. Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315 Berlin, Germany;4. Borneo Futures, Ciputat, Jakarta, 15412, Indonesia;5. Department of Wildlife, Fisheries, and Aquaculture, Mississippi State University, Mississippi State, 39759 MS, USA;6. Sabah Forestry Department, Locked Bag 68, 90009 Sandakan, Sabah Malaysia;1. Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA;2. Department of Surgery, Brigham and Women''s Hospital, Harvard Medical School Gastrointestinal and General Surgery, Boston, MA, USA;3. Department of Onco-coloproctology, National Cancer Institute, Kyiv, Ukraine;4. Department of General Surgery and Department of Endoscopy, San Pier Damiano Hospital, Faenza, Italy;5. 2nd Department of Surgery, Jagiellonian University Medical College, The University Hospital in Krakow, Krakow, Poland;6. Health Services Research, American Cancer Society, Kennesaw, GA, USA;7. National Center for PTSD, White River Junction, VT, USA;8. Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA;9. LSU Public Health, New Orleans, LA, USA;10. Department of Psychiatry and Behavioral Sciences, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA;11. P3H: Promote & Protect Population Health in Complex Crises, Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, FL 33136, USA;1. Evolutionary Biology and Ecology, Université Libre de Bruxelles, 1050 Brussels, Belgium;2. Centre for Social Evolution, University of Copenhagen, 2100 Copenhagen, Denmark;1. Charles University, Faculty of Humanities, U Kříže 8, CZ–158 00 Praha 5, Czechia;2. Charles University, Faculty of Science, Department of Zoology, Viničná 7, CZ–128 44 Praha 2, Czechia |
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| Abstract: | Developing ovaries of scale insects (Hemiptera : Coccinea) Nipaecoccus nipae (Pseudococcidae) and Cryptococcus fagisuga (Cryptococcidae) contain clusters of interconnected cells (cystocytes) that are arranged into rosettes; polyfusomes occur in the centres of the rosettes. Ovaries of the investigated adult scale insects are composed of numerous short telotrophic ovarioles. Tropharia (trophic chambers) of Dysmicoccus newsteadi (Pseudococcidae), Eriococcus buxi (Eriococcidae), Cryptococcus fagisuga and Pseudochermes fraxini (Cryptococcidae) comprise only trophocytes (nurse cells), whereas those of Kermes quercus (Kermesidae) and Gossyparia spuria (Eriococcidae) also contain arrested oocytes. The latter probably degenerate. It is suggested that during evolution of scale insects a gradual reduction of germ cells to 4 per cluster (3 trophocytes and 1 oocyte) took place. In light of the obtained results, anagenesis of scale insects ovarioles is discussed. |
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