Annelids; Polychaetes; jaws; chemical composition; calcified structures; structural proteins
Abstract :
[en] The mandibles and maxillae of the buccal ventral organ of 2 species of Eunicidae (Marphysa sanguinea and Eunice torquata) are highly calcified, in contrast to the jaws of 4 species of other families of "errant" predacious Polychaetes (Nereidae, Nephthyidae, Aphroditidae and Glyceridae) with axial proboscis. The amino acid composition of the structural proteins of these buccal pieces is also different in the two groups. The structural proteins of the jaws of Glycera convoluta (Glyceridae) are essentially made up of glycine and histidine (up to 86 residues per 100 residues). These chemical characters confirm the phyletic relationships proposed by Dales.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Voss-Foucart, Marie-Françoise; Université de Liège - ULiège > Zoological institute > Laboratories of morphology, systematics and animal ecology
Fonze-Vignaux, Marie-Thérèse; Université de Liège - ULiège > Zoological institute > Laboratories of morphology, systematics and animal ecology
Jeuniaux, Charles ; Université de Liège - ULiège > Zoological institute > Laboratories of morphology, systematics and animal ecology
Language :
English
Title :
Systematic characters of some polychaetes (Annelida) at the level of the chemical composition of the Jaws
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