Summary
-
1.
Both, the male and the female genital discs of matureCalliphora erythrocephala larvae represent broad, dorso-ventrally flattened vesicles, the dorsal and ventral walls of which show characteristically formed papillae and thickenings (Fig. 1).
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2.
In order to investigate the prospective fate of the various disc regions, specific disc fragments (e.g. dorsal and ventral fragments) were implanted into the body cavity of host larvae of the same age (Fig. 3, 4; Tables 1, 2).
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3.
The results demonstrate that the genital discs inCalliphora — as those inDrosophila (Hadornet al., 1949; Ursprung, 1957, 1959) — are organized bilaterally symmetrical. They represent a mosaic of individual anlagen or primordia, and, even immediately before puparium formation, are capable of some regulation.
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4.
In the male and also in the female disc individual anlagen are found in the dorsal as well as in the ventral wall; their arrangement in the disc is illustrated in three-dimensional fate maps (Fig. 5, 6).
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5.
These fate maps are compared with anlagen plans ofDrosophila andMusca genital discs previously published by other authors.
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Abbreviations
- Ce:
-
Cercus
- d:
-
dorsal
- Da:
-
Enddarm
- dAp:
-
dorsale Analplatte
- De:
-
Ductus ejaculatorius
- Ep:
-
Epandrium
- Hy:
-
Hypandrium
- I.K.:
-
Innerer Kopulationsapparat
- Kla:
-
Analklappe
- Mb:
-
Membran
- OPa:
-
Opisthoparamer
- Pg:
-
Paragon
- Ph:
-
Phallus
- Po:
-
Parovar
- PPa:
-
Proparamer
- Prl:
-
Processus longus
- Pro:
-
Proctiger=Analfeld
- SP:
-
Samenpumpe
- SSt:
-
Surstylus
- v:
-
ventral
- vAp:
-
ventrale Analplatte
- Vd:
-
Vas deferens
- Vg:
-
Vagina
Literatur
Anderson, D. T.: The larval development ofDacus tryoni (Frogg.) (Diptera: Trypetidae). I. Larval instars, imaginal discs, and haemocytes. Aust. J. Zool.11, 202–218 (1963).
Dübendorfer, A.: Entwicklungsleistungen transplantierter Genital- und Analanlagen vonMusca domestica undPhormia regina. Experientia (Basel)26, 1158–1160 (1970).
Dübendorfer, A.: Untersuchungen zum Anlageplan und Determinationszustand der weiblichen Genital- und Analprimordien vonMusca domestica L. Wilhelm Roux' Archiv168, 142–168 (1971).
Emmert, W.: Entwicklungsleistungen fragmentierter Labialdrüsen-Imaginalanlagen vonFormica pratensis Retz. (Hymenoptera). Wilhelm' Roux Archiv162, 97–113 (1969).
Emmert, W.: Entwicklungsleistungen abdominaler Imaginalscheiben vonGalliphora erythrocephala (Insecta, Diptera). Experimentelle Untersuchungen zur Morphologie des Abdomens. Wilhelm Roux' Archiv169, 87–133 (1972).
Ephrussi, B., Beadle, G. W.: A technique of transplantation forDrosophila. Amer. Naturalist70, 218–225 (1936).
Gehring, W.: The stability of the determined state in cultures of imaginal disks inDrosophila. In: The stability of the differentiated state, ed. H. Ursprung, p. 136–154. Berlin-Heidelberg-New York: Springer 1968.
Gehring, W., Nöthiger, R.: The imaginal discs ofDrosophila. In: Developmental systems. I. Insects, eds. C. H. Waddington and S. J. Counce. New York-London: Academic Press (im Druck).
Hadorn, E., Bertani, G., Gallera, J.: Regulationsfähigkeit und Feldorganisation der männlichen Genital-Imaginalscheibe vonDrosophila melanogaster. Wilhelm Roux' Arch. Entwickl.-Mech. Org.144, 31–70 (1949).
Hadorn, E., Gloor, H.: Transplantationen zur Bestimmung des Anlagemusters in der weiblichen Genital-Imaginalscheibe vonDrosophila. Rev. suisse Zool.53, 495–501 (1946).
Murphy, C.: Localization of primordia within the dorsal mesothoracic disc ofDrosophila. J. exp. Zool.179, 51–62 (1972).
Newby, W. W.: A study of intersexes produced by a dominant mutation inDrosophila virilis, Blanco stock. Univ. Texas Publ. 4228, 113–145 (1942).
Nöthiger, R., Schubiger, G.: Developmental behaviour of fragments of symmetrical and asymmetrical imaginal discs ofDrosophila melanogaster (Diptera). J. Embryol. exp. Morph.16, 355–368 (1966).
Ouweneel, W. J.: Normal and abnormal determination in the imaginal discs ofDrosophila, with special reference to the eye discs. Acta embryol. exp. (Palermo)1, 95–119 (1970).
Schubiger, G.: Anlageplan, Determinationszustand und Transdeterminationsleistungen der männlichen Vorderbeinscheibe vonDrosophila melanogaster. Wilhelm Roux' Archiv160, 9–40 (1968).
Spinner, W.: Transplantationsversuche zur Blastemgliederung, Regenerations- und Differenzierungsleistung der Beinanlagen vonCulex pipiens (L.). Wilhelm Roux' Archiv163, 259–286 (1969).
Ursprung, H.: Untersuchungen zum Anlagemuster der weiblichen Genitalscheibe vonDrosophila melanogaster durch UV-Strahlenstich. Rev. suisse Zool.64, 303–311 (1957).
Ursprung, H.: Fragmentierungs- und Bestrahlungsversuche zur Bestimmung von Determinationszustand und Anlageplan der Genitalscheiben vonDrosophila melanogaster. Wilhelm Roux' Arch. Entwickl.-Mech. Org.151, 504–558 (1959).
Wildermuth, H.: Determination and transdetermination in cells of the fruitfly. Sci. Progr.58, 329–358 (1970).
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Bernhard Hanssler gewidmet.
Ich danke Fräulein Emilie Vogt für zuverlässige technische Mithilfe, den Herren Prof. Dr. G. Krause und Dr. D. F. Went für die kritische Durchsicht des Manuskripts.
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Emmert, W. Experimente zur Bestimmung des Anlagenplans der männlichen und der weiblichen Genital-Imaginalscheibe vonCalliphora (Insecta, Diptera). W. Roux' Archiv f. Entwicklungsmechanik 171, 109–120 (1972). https://doi.org/10.1007/BF00576332
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DOI: https://doi.org/10.1007/BF00576332