Spermatozoon Morphology of Three Species of Hypsibiidae (Tardigrada, Eutardigrada) and Phylogenetic Evaluation

Zoologischer Anzeiger

Volumn 238, Issue , 1999, Pages 319-328

  Rebecchi, Lorena ^a   Bertolani, Roberto ^a  

^a UNIVERSITY OF MODENA AND REGGIO EMILIA   (Italy)

Author keywords

Hypsibiinae; phylogeny; Pseudobiotus; Ramazzottius; ultrastructure

Indexed keywords

EUTARDIGRADA; HYPSIBIIDAE; RAMAZZOTTIUS; TARDIGRADA;

EID: 0001720401     PISSN: 00445231     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (18)

1. Baccetti, B. (1987): The evolution of the sperm cell in the phylum Tardigrada (Electron microscopy of Tardigrades. 5). Pp. 87–91 in: Bertolani, R. (ed.) Biology of Tardigrades. Selected Symposia and Monographs U.Z.I., vol. 1. Modena, Mucchi, Italy.
2. Baccetti, B. & Afzelius, B. (1975): The Biology of the Sperm Cell. Pp. 1–254 in: Wolsky, A. (ed.) Monographs in Developmental Biology, vol. 10. Karger, Basel.
3. Baccetti, B., Rosati, F. & Selmi, G. (1971): Electron microscopy of Tardigrades. 4. The spermatozoon. Mon. Zool. Ital. (N.S.) 5: 231–240.
4. Bertolani, R. (1983): Tardigrada. Pp. 387–396 in: Adiyodi, K. G. & Adiyodi, R. G. (eds.) Reproductive Biology of Invertebrates. Spermatogenesis and Sperm Function, vol. 2. John Wiley & Sons, Chichester.
5. Bonet, S. & Molinas, M. (1988): Ultrastructure of the sperm and spermatogenesis and spermiogenesis of Dina lineata (Hirudinea, Erpobdellidae). Gamete Res. 19: 177–190.
6. Dastych, H. (1992): Paradiphascon manningi gen. n. sp. n., a new water-bear from South Africa, with the erecting of a new subfamily Diphasconinae (Tardigrada). Mitt. Hamb. zool. Mus. Inst. 89: 125–139.
7. Ferraguti, M. (1983): Annelida – Clitellata. Pp. 343–376 in: Adiyodi, K. G. & Adiyodi, R. G. (eds.) Reproductive Biology of Invertebrates. Spermatogenesis and Sperm Function, vol. 2. John Wiley & Sons, Chichester.
8. Guidi, A. & Rebecchi, L. (1996): Spermatozoon morphology as a character for tardigrade systematics: comparison with sclerified parts of animals and eggs in eutardigrades. Zool. J. Linn. Soc. 116: 101–113.
9. Henneke, J. (1911): Beiträge zur Kenntniss der Biologie und Anatomie der Tardigraden (Macrobiotus macronyx Duj.). Z. wiss. Zool. 97: 721–752.
10. Kristensen, R. M. (1979): On the fine structure of Batillipes noerrevangi Kristensen 1978 (Heterotardigrada). 3. Spermiogenesis. Zesz. Nauk. Uniw. Jagiel. Prace Zool. 25: 97–105.
11. Pilato, G. (1987): Revision of the genus Diphascon Plate, 1889, with remarks on the subfamily Itaquasconinae (Eutardigrada, Hypsibiidae). Pp. 337–357 in: Bertolani, R. (ed.) Biology of Tardigrades, Sel. Symp. Monogr. U.Z.I., vol. 1. Modena, Mucchi, Italy.
12. Rebecchi, L. (1997): Ultrastructural study of spermiogenesis and the testicular and spermathecal spermatozoon of the gonochoristic Tardigrade Xerobiotus pseudohufelandi (Eutardigrada, Macrobiotidae). J. Morphol. 234: 11–24.
13. Rebecchi, L. & Bertolani, R. (1988): New cases of parthenogenesis and polyploidy in the genus Ramazzottius (Tardigrada, Hypsibiidae) and a hypothesis concerning their origin. Invertebr. Reprod. Dev. 14: 187–196.
14. Rebecchi, L. & Guidi, A. (1991): First SEM studies on tardigrade spermatozoa. Invertebr. Reprod. Dev. 19: 151–156.
15. Rebecchi, L. & Guidi A. (1995): Spermatozoon ultrastructure in two species of Amphibolus (Eutardigrada, Eohypsibiidae). Acta Zool. 76: 171–176.
16. Rebecchi, L., Guidi, A. & Bertolani, R. (in press): Tardigrada. In: Jamieson, B. G. M. (ed.) Reproductive Biology of Invertebrates. Progress in Male Gamete Biology, vol. 9, part B. Oxford and IBH Publishing, New Delhi.
17. Wissocq, J. -C. & Malecha, J. (1975): Etude des spermatozoïdes d'Hirudinées á l'aide de la technique de coloration negative. J. Ultrastruct. Res. 52: 340–361.
18. Wolburg-Buchholz, K. & Greven, H. (1979): On the fine structure of the spermatozoon in Isohypsibius granulifer Thulin, 1928 (Eutardigrada) with reference to its differentiation. Zesz. Nauk. Uniw. Jagiel. Prace Zool. 25: 191–197.