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Spermatozoon ultrastructure of Thysanotaenia congolensis (Cyclophyllidea, Anoplocephalidae, Inermicapsiferinae): phylogenetic implications
- Source :
- Dipòsit Digital de la UB, Universidad de Barcelona
- Publication Year :
- 2016
- Publisher :
- Springer Science and Business Media LLC, 2016.
-
Abstract
- The mature spermatozoon of Thysanotaenia congolensis, an intestinal parasite of black rat Rattus rattus from Cape Verde, is described by means of transmission electron microscopy. The ultrastructural organization of the sperm cell of T. congolensis follows Levron et al.'s type VII of the Eucestoda. It corresponds to a uniflagellate spermatozoon that presents crested bodies, periaxonemal sheath and intracytoplasmic walls, spiralled cortical microtubules and nucleus spiralled around the axoneme. These characteristics are also present in the spermatozoa of other inermicapsiferines and differ from the characters found in species belonging to the remaining subfamilies of anoplocephalids, namely Anoplocephalinae, Linstowiinae and Thysanosomatinae. Several authors consider the family Anoplocephalidae as a polyphyletic group, and its relationships with the Davaineidae are a matter of controversy. The phylogenetic implications of spermatological ultrastructural features present in inermicapsiferines and in the remaining anoplocephalids are discussed, and the available data on anoplocephalids are compared to similar results in davaineids in order to contribute to a better knowledge of relationships between these cyclophyllidean families.
- Subjects :
- Male
0301 basic medicine
Eucestoda
Axoneme
Anoplocephalidae
Zoology
Ultrastructure (Biology)
Microtubules
Cape verde
03 medical and health sciences
Microscopy, Electron, Transmission
Polyphyly
Davaineidae
medicine
Animals
Intestinal Diseases, Parasitic
Tapeworms
Spermatogenesis
Phylogeny
Cell Nucleus
General Veterinary
biology
Spermatozoon
Parasitologia
Cestodes
General Medicine
030108 mycology & parasitology
Cestode Infections
biology.organism_classification
Spermatozoa
Rats
Espermatozoides
Ultraestructura (Biologia)
Infectious Diseases
medicine.anatomical_structure
Insect Science
Ultrastructure
Cestoda
Parasitology
Cyclophyllidea
Subjects
Details
- ISSN :
- 14321955 and 09320113
- Volume :
- 115
- Database :
- OpenAIRE
- Journal :
- Parasitology Research
- Accession number :
- edsair.doi.dedup.....66b43d73816160e455ae52940cfde559