Morphology, microanatomy and sequence data of Sclerolinum contortum (Siboglindae, Annelida) of the Gulf of Mexico - Adaptation et Biologie des Invertébrés en Conditions Extrêmes Accéder directement au contenu
Article Dans Une Revue Organisms Diversity and Evolution Année : 2013

Morphology, microanatomy and sequence data of Sclerolinum contortum (Siboglindae, Annelida) of the Gulf of Mexico

Irmgard Eichinger
  • Fonction : Auteur
Monika Bright
  • Fonction : Auteur

Résumé

Sclerolinum is a small genus of Siboglinidae (Annelida) living in an obligate mutualistic association with thiotrophic bacteria as adults. Its taxonomic position, based on morphology, has been controversial; however, molecular data point to a sister taxa relationship with vestimentiferans. 16S rRNA gene sequencing and comparative morphology revealed that the studied population from deep-sea hydrocarbon seeps of the Gulf of Mexico belongs to Sclerolinum contortum known from the Arctic Sea. Since no anatomical and microanatomical studies have been published yet, we conducted such a study on S. contortum using serial sectioning and light and transmission electron microscopy. We show that the Sclerolinum body, divided into a head, trunk, and opisthosoma, is very similar to that of the vestimentiferans, and therefore we propose that the body regions are homologous in both taxa.

Dates et versions

hal-01250920 , version 1 (05-01-2016)

Identifiants

Citer

Irmgard Eichinger, Stéphane Hourdez, Monika Bright. Morphology, microanatomy and sequence data of Sclerolinum contortum (Siboglindae, Annelida) of the Gulf of Mexico. Organisms Diversity and Evolution, 2013, 13 (3), pp.311-329. ⟨10.1007/s13127-012-0121-3⟩. ⟨hal-01250920⟩
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