A phenetic and cladistic study of spermatozoal ultrastructure in the Oligochaeta (Annelids)

Jamieson B.G.M. (1984) A phenetic and cladistic study of spermatozoal ultrastructure in the Oligochaeta (Annelids). Hydrobiologia, 115 1: 3-13. doi:10.1007/BF00027886


Author Jamieson B.G.M.
Title A phenetic and cladistic study of spermatozoal ultrastructure in the Oligochaeta (Annelids)
Journal name Hydrobiologia   Check publisher's open access policy
ISSN 0018-8158
Publication date 1984
Sub-type Article (original research)
DOI 10.1007/BF00027886
Volume 115
Issue 1
Start page 3
End page 13
Total pages 11
Publisher Kluwer Academic Publishers
Subject 2312 Water Science and Technology
2310 Pollution
2300 Environmental Science
1910 Oceanography
1104 Complementary and Alternative Medicine
Abstract Spermatozoal ultrastructure of nine oligochaete families has been examined for congruence with phylogenetic and taxonomic systems for the Oligochaeta based on general morphology, particularly the holomorphological hennigian analysis of Jamieson (1978a, 1980, 1983). Estimation of congruence has been made following phenetic and cladistic (phylogenetic) analysis. Correspondence, in phenograms and phylograms, of sperm types with taxonomic and phylogenetic groupings previously recognized is generally good. Departure from this rule in the similarity of the phreodrilid sperm to that of the Lumbricina suggests a corresponding alteration of fertilization biology in the phreodrilids. The results indicate that the Haplotaxidae lie at the base of the opisthopores though they do not unequivocally contraindicate acceptance of a Haplotaxis like form as a stem form of the Haplotaxida (opisthopores and Haplotaxidae) and Tubificida. An even more basal position for prosopores, now represented by the Lumbriculida, cannot yet be dismissed.
Keyword acrosome
aquatic Oligochaeta
electron microscopy
oligochaete spermatozoa
phenetics
phylogeny
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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