Integrative biology of Idas iwaotakii (Habe, 1958), a 'model species' associated with sunken organic substrates.

The giant bathymodioline mussels from vents have been studied as models to understand the adaptation of organisms to deep-sea chemosynthetic environments. These mussels are closely related to minute mussels associated to organic remains decaying on the deep-sea floor. Whereas biological data accumul...

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Autores principales:	Justine Thubaut, Laure Corbari, Olivier Gros, Sébastien Duperron, Arnaud Couloux, Sarah Samadi
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a0054b020987417e910c4cf775b565a9
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spelling	oai:doaj.org-article:a0054b020987417e910c4cf775b565a92021-11-18T09:03:06ZIntegrative biology of Idas iwaotakii (Habe, 1958), a 'model species' associated with sunken organic substrates.1932-620310.1371/journal.pone.0069680https://doaj.org/article/a0054b020987417e910c4cf775b565a92013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23894520/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The giant bathymodioline mussels from vents have been studied as models to understand the adaptation of organisms to deep-sea chemosynthetic environments. These mussels are closely related to minute mussels associated to organic remains decaying on the deep-sea floor. Whereas biological data accumulate for the giant mussels, the small mussels remain poorly studied. Despite this lack of data for species living on organic remains it has been hypothesized that during evolution, contrary to their relatives from vents or seeps, they did not acquire highly specialized biological features. We aim at testing this hypothesis by providing new biological data for species associated with organic falls. Within Bathymodiolinae a close phylogenetic relationship was revealed between the Bathymodiolus sensu stricto lineage (i.e. "thermophilus" lineage) which includes exclusively vent and seep species, and a diversified lineage of small mussels, attributed to the genus Idas, that includes mostly species from organic falls. We selected Idas iwaotakii (Habe, 1958) from this latter lineage to analyse population structure and to document biological features. Mitochondrial and nuclear markers reveal a north-south genetic structure at an oceanic scale in the Western Pacific but no structure was revealed at a regional scale or as correlated with the kind of substrate or depth. The morphology of larval shells suggests substantial dispersal abilities. Nutritional features were assessed by examining bacterial diversity coupled by a microscopic analysis of the digestive tract. Molecular data demonstrated the presence of sulphur-oxidizing bacteria resembling those identified in other Bathymodiolinae. In contrast with most Bathymodiolus s.s. species the digestive tract of I. iwaotakii is not reduced. Combining data from literature with the present data shows that most of the important biological features are shared between Bathymodiolus s.s. species and its sister-lineage. However Bathymodiolus s.s. species are ecologically more restricted and also display a lower species richness than Idas species.Justine ThubautLaure CorbariOlivier GrosSébastien DuperronArnaud CoulouxSarah SamadiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 7, p e69680 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Justine Thubaut Laure Corbari Olivier Gros Sébastien Duperron Arnaud Couloux Sarah Samadi Integrative biology of Idas iwaotakii (Habe, 1958), a 'model species' associated with sunken organic substrates.
description	The giant bathymodioline mussels from vents have been studied as models to understand the adaptation of organisms to deep-sea chemosynthetic environments. These mussels are closely related to minute mussels associated to organic remains decaying on the deep-sea floor. Whereas biological data accumulate for the giant mussels, the small mussels remain poorly studied. Despite this lack of data for species living on organic remains it has been hypothesized that during evolution, contrary to their relatives from vents or seeps, they did not acquire highly specialized biological features. We aim at testing this hypothesis by providing new biological data for species associated with organic falls. Within Bathymodiolinae a close phylogenetic relationship was revealed between the Bathymodiolus sensu stricto lineage (i.e. "thermophilus" lineage) which includes exclusively vent and seep species, and a diversified lineage of small mussels, attributed to the genus Idas, that includes mostly species from organic falls. We selected Idas iwaotakii (Habe, 1958) from this latter lineage to analyse population structure and to document biological features. Mitochondrial and nuclear markers reveal a north-south genetic structure at an oceanic scale in the Western Pacific but no structure was revealed at a regional scale or as correlated with the kind of substrate or depth. The morphology of larval shells suggests substantial dispersal abilities. Nutritional features were assessed by examining bacterial diversity coupled by a microscopic analysis of the digestive tract. Molecular data demonstrated the presence of sulphur-oxidizing bacteria resembling those identified in other Bathymodiolinae. In contrast with most Bathymodiolus s.s. species the digestive tract of I. iwaotakii is not reduced. Combining data from literature with the present data shows that most of the important biological features are shared between Bathymodiolus s.s. species and its sister-lineage. However Bathymodiolus s.s. species are ecologically more restricted and also display a lower species richness than Idas species.
format	article
author	Justine Thubaut Laure Corbari Olivier Gros Sébastien Duperron Arnaud Couloux Sarah Samadi
author_facet	Justine Thubaut Laure Corbari Olivier Gros Sébastien Duperron Arnaud Couloux Sarah Samadi
author_sort	Justine Thubaut
title	Integrative biology of Idas iwaotakii (Habe, 1958), a 'model species' associated with sunken organic substrates.
title_short	Integrative biology of Idas iwaotakii (Habe, 1958), a 'model species' associated with sunken organic substrates.
title_full	Integrative biology of Idas iwaotakii (Habe, 1958), a 'model species' associated with sunken organic substrates.
title_fullStr	Integrative biology of Idas iwaotakii (Habe, 1958), a 'model species' associated with sunken organic substrates.
title_full_unstemmed	Integrative biology of Idas iwaotakii (Habe, 1958), a 'model species' associated with sunken organic substrates.
title_sort	integrative biology of idas iwaotakii (habe, 1958), a 'model species' associated with sunken organic substrates.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/a0054b020987417e910c4cf775b565a9
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Integrative biology of Idas iwaotakii (Habe, 1958), a 'model species' associated with sunken organic substrates.

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