A molecular phylogeny of the north-east Atlantic species of the genus Idotea (Isopoda) with focus on the Baltic Sea

Panova, Marina, 1973 (author): Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences,Department of Marine Sciences, Tjärnö, University of Gothenburg, Strömstad, Sweden

Nygren, Arne, 1971 (author): The Maritime Museum & Aquarium, Göteborg, Sweden

Jonsson, Per R., 1957 (author): Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences,Department of Marine Sciences, Tjärnö, University of Gothenburg, Strömstad, Sweden

Leidenberger, Sonja (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,ARTDATABANKEN,Swedish Species Information Centre,Swedish Species Information Centre/ArtDatabanken, Swedish University of Agricultural Sciences, Uppsala, Sweden

(creator_code:org_t)

2016-07-28
2017
English.
In: Zoologica Scripta. - : Wiley. - 0300-3256 .- 1463-6409. ; 46:2, s. 188-199

Related links:: https://gup.ub.gu.se...; show more...; https://doi.org/10.1...; https://res.slu.se/i...; https://urn.kb.se/re...; show less...

Abstract Subject headings

Today, the marine isopods of the genus Idotea Fabricius, 1798 consist of 26 accepted species. Most species can be found in the Northern Hemisphere. While some species have a cosmopolitan distribution, others are endemic to a few coastlines. In the Baltic Sea, Idotea species have a key role as important meso-grazers. Only three species can be found in this brackish environment, I. balthica, I. chelipes and I. granulosa, while nine species are described from the whole European coast. The goal of the present study was to reconstruct the phylogeny of the genus Idotea and to test whether the Baltic low-salinity tolerant species represent a single lineage within the genus. The phylogeny of north-east Atlantic Idotea species was investigated based on a fragment of the nuclear gene 28S and the mitochondrial gene COI for eight Idotea species. The phylogenetic reconstructions showed that the genus Idotea might not be monophyletic. Neither I. linearis nor I. urotoma did belong to the separated and well-supported Idotea clade of I. balthica, I. chelipes, I. emarginata, I. granulosa, I. metallica and I. pelagica. The three Idotea species found in the Baltic belonged to different lineages, with estimated COI-based divergence time older than 7 Myr. This suggests that the tolerance to low salinity has likely evolved in the genus Idotea more than once.

By the author/editor: Panova, Marina, ...; Nygren, Arne, 19 ...; Jonsson, Per R., ...; Leidenberger, So ...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Biological Syste ...

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Environmental Sc ...

By the university: University of Gothenburg; Swedish University of Agricultural Sciences; University of Skövde

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