Morphology, microanatomy and sequence data of Sclerolinum contortum (Siboglindae, Annelida) of the Gulf of Mexico - Archive ouverte HAL Access content directly
Journal Articles Organisms Diversity and Evolution Year : 2013

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

, (1) ,
1
Irmgard Eichinger
  • Function : Author
Monika Bright
  • Function : Author

Abstract

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 and versions

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

Identifiers

Cite

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⟩
228 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More