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Intergeneric reproductive stimulation and parthenogenesis in Schistosoma mansoni

Published online by Cambridge University Press:  06 April 2009

P. F. Basch  and
Natalicia Basch
P. F. Basch
Affiliation:
Department of Family, Community and Preventive Medicine, Stanford University, Stanford, California 94305
Natalicia Basch
Affiliation:
Department of Family, Community and Preventive Medicine, Stanford University, Stanford, California 94305
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Summary

When mice were infected with female cercariae of Schistosoma mansoni and male cercariae of Schistosomatium douthitti, many mixed pairs formed. The paired females were approximately the same size as those in unisexual infections, far smaller than females paired with S. mansoni males. Although the Sch. douthitti males possessed well-developed testes, sperm were not found in their female partners, which developed scanty vitelline glands and produced laterally spined eggs typical of S. mansoni. Such eggs yielded swimming miracidia infective to the snail host of S. mansoni, Biomphalaria glabrata, but not to the lymnaeid snail host of Sch. douthitti. Sporocysts arising from these miracidia were haploid and produced cercariae infective to mice. Parthenogenetically derived female cercariae in mice co-infected with either parthenogenetically derived male or normal diploid male S. mansoni developed to large adults of normal appearance, whose eggs yielded diploid miracidia and subsequent generations of normal diploid schistosomes. Parthenogenetically derived females co-infected with Sch. douthitti males also paired and produced some eggs containing viable miracidia, which gave rise once again to haploid sporocysts. These observations confirm previous suggestions that the stimulus for maturation in female S. mansoni is distinct from that for growth, and is independent of insemination and fertilization. It is concluded that both diploid and haploid S. mansoni females are capable either of parthenogenesis or of bisexual reproduction when appropriately stimulated.

Type
Research Article
Information
Parasitology , Volume 89 , Issue 2 , October 1984 , pp. 369 - 376
Copyright
Copyright © Cambridge University Press 1984

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References

Armstrong, J. C. (1965). Mating behavior and development of schistosomes in the mouse. Journal of Parasitology 51, 605–15.CrossRefGoogle ScholarPubMed
Atkinson, K. H. (1980). Chromosome analysis of Schistosoma rodhaini (Trematoda: Schistosomatidae). Canadian Journal of Genetics and Cytology 22, 143–7.CrossRefGoogle ScholarPubMed
Atkinson, K. H. & Atkinson, B. G. (1980). Biochemical basis for the continuous copulation of female Schistosoma mansoni. Nature, London 283, 478–9.CrossRefGoogle ScholarPubMed
Basch, P. F. (1981). Cultivation of Schistosoma mansoni in vitro. I. Establishment of cultures from cercariae and development until pairing. Journal of Parasitology 67, 179–85.CrossRefGoogle ScholarPubMed
Basch, P. F. & DiConza, J. J. (1974). The miracidium–sporocyst transition in Schistosoma mansoni: surface changes in vitro with ultrastructural correlation. Journal of Parasitology 60, 935–41.CrossRefGoogle ScholarPubMed
Clough, E. R. (1981). Morphology and reproductive organs and oogenesis in bisexual and unisexual transplants of mature Schistosoma mansoni females. Journal of Parasitology 67, 535–9.CrossRefGoogle ScholarPubMed
Duvall, R. H. & DeWitt, W. B. (1967). An improved technique for recovering adult schistosomes from laboratory animals. American Journal of Tropical Medicine and Hygiene 16, 483–6.CrossRefGoogle ScholarPubMed
Erasmus, D. A. (1973). A comparative study of the reproductive system of mature, immature, and ‘unisexual’ female Schistosoma mansoni. Parasitology 67, 165–83.CrossRefGoogle ScholarPubMed
Grossman, A. I., Short, R. B. & Cain, G. D. (1981). Karyotype evolution and sex chromosome differentiation in schistosomes (Trematoda, Schistosomatidae). Chromosoma 84, 413–30.CrossRefGoogle ScholarPubMed
Johri, L. N. & Smyth, J. D. (1956). A histochemical approach to the study of helminth morphology. Parasitology 46, 107–16.CrossRefGoogle Scholar
Kagan, I. G., Short, R. B. & Nez, M. M. (1954). Maintenance of Schistosomatium douthitti (Cort, 1914) in the laboratory (Trematoda: Schistosmatidae). Journal of Parasitology 40, 424–39.CrossRefGoogle Scholar
Malek, E. A. (1977). Geographical distribution, hosts, and biology of Schistosomatium douthitti (Cort, 1914) Price, 1931. Canadian Journal of Zoology 55, 661–71.CrossRefGoogle ScholarPubMed
Michaels, R. M. (1970). S. mansoni: Alteration of ovipositing capacity by transplanting between heterologous hosts. Experimental Parasitology 27, 217–28.CrossRefGoogle Scholar
Moore, D. V., Yolles, T. K. & Meleney, H. E. (1954). The relationship of male worms to the sexual development of female Schistosoma mansoni. Journal of Parasitology 40, 166–85.CrossRefGoogle Scholar
Shaw, J. R., Marshall, I. & Erasmus, D. A. (1977). Schistosoma manonsi: In vitro stimulation of vitelline cell development by extracts of male worms. Experimental Parasitology 42, 14–20.CrossRefGoogle Scholar
Short, R. B. (1948). Inter-generic crosses among schistosomes (Trematoda, Schistosomatidae). Journal of Parasitology 34, 30.Google Scholar
Short, R. B. (1952). Sex studies on Schistosomatium douthitti (Cort, 1914) Price, 1931 (Trematoda, Schistosomatidae). American Midland Naturalist 47, 1–54.CrossRefGoogle Scholar
Short, R. B. (1983). Presidential address: Sex and the single schistosome. Journal of Parasitology 69, 1–22.CrossRefGoogle ScholarPubMed
Short, R. B. & Menzel, M. Y. (1959). Chromosomes in parthenogenetic miracidia and embryonic cercariae of Schistosomatium douthitti. Experimental Parasitology 8, 249–64.CrossRefGoogle ScholarPubMed
Short, R. B. & Menzel, M. Y. (1960). Chromosomes of nine species of schistosomes. Journal of Parasitology 46, 273–87.CrossRefGoogle ScholarPubMed
Taylor, M. G. (1970). Hybridisation experiments on five species of African schistosomes. Journal of Helminthology 44, 253–314.CrossRefGoogle ScholarPubMed
Taylor, M. G., Amin, M. B. A. & Nelson, G. S. (1969). ‘Parthenogenesis’ in Schistosoma mattheei. Journal of Helminthology 43, 197–206.CrossRefGoogle ScholarPubMed
Vogel, H. (1941). Über den Einfluss des Geschlechtspartners auf Wachstum and Entwicklung bei Bilharzia mansoni and bei Kreuzpaarungen zwischen verschiedenen Bilharzia-Atren. Zentralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten, Abteilung I, Originale 148, 78–96.Google Scholar
Vogel, H. (1942). Über die Nachkommenschaft aus Kreuzpaarungen zwischen Bilharzia mansoni und B. japonica. Zentralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten, Abetilung I, Originale 149, 319–33.Google Scholar