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Multilocus phylogenetics of smooth clam shrimps (Branchiopoda, Laevicaudata)

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Multilocus phylogenetics of smooth clam shrimps (Branchiopoda, Laevicaudata)

dc.contributor.author	Sigvardt, Zandra M. S.
dc.contributor.author	Olesen, Jorgen
dc.contributor.author	Rogers, D. Christopher
dc.contributor.author	Timms, Brian
dc.contributor.author	Mlambo, Musa
dc.contributor.author	Rabet, Nicolas
dc.contributor.author	Palero Pastor, Ferran
dc.date.accessioned	2022-01-19T16:50:34Z
dc.date.available	2022-01-19T16:50:34Z
dc.date.issued	2021
dc.identifier.citation	Sigvardt, Zandra M. S. Olesen, Jorgen Rogers, D. Christopher Timms, Brian Mlambo, Musa Rabet, Nicolas Palero, Ferran 2021 Multilocus phylogenetics of smooth clam shrimps (Branchiopoda, Laevicaudata) Zoologica Scripta 50 6 795 811
dc.identifier.uri	https://hdl.handle.net/10550/81353
dc.description.abstract	Laevicaudatan branchiopods, also called 'smooth clam shrimps' or 'pea shrimps', are rare crustaceans found exclusively in temporary, small freshwater bodies, which stay dry most of the year. Only 42 laevicaudatan species have been described so far, 90% of which belong to the genus Lynceus. The first multilocus phylogeny of the group is provided here, based on 15 Lynceus species from North and South America, Europe, Africa, Asia, Australia and New Caledonia and using nine molecular markers (two mitochondrial and seven nuclear genes, including newly designed primers). Genetic data suggest populations of Lynceus brachyurus from Europe and North America to represent a complex of cryptic species and sister group to all other laevicaudatans. Species from Thailand, Japan, Mongolia and China formed a distinct East Asian clade. A Southern Hemisphere (Gondwanaland) clade, composed of Chilean, Australian and New Caledonian taxa, was found weakly clustering with an African Lynceus species. Relaxed molecular clock analyses indicate a Pangean origin of Laevicaudata, with further diversification due to vicariance and the continued splitting of continents. Rostrum characters, which are particularly relevant for laevicaudatan systematics, were re-evaluated and provide morphological evidence supporting molecular clades. Our worldwide overview of Laevicaudata evolution highlights that recent sampling from Africa and South America is scarce, and that further DNA efforts should focus on Paralimnetis and Lynceiopsis species.
dc.language.iso	eng
dc.relation.ispartof	Zoologica Scripta, 2021, vol. 50, num. 6, p. 795-811
dc.subject	Biogeografia
dc.title	Multilocus phylogenetics of smooth clam shrimps (Branchiopoda, Laevicaudata)
dc.type	journal article	es_ES
dc.date.updated	2022-01-19T16:50:36Z
dc.identifier.doi	10.1111/zsc.12505
dc.identifier.idgrec	149655
dc.rights.accessRights	open access	es_ES