The unionids of Tunisia: taxonomy and phylogenetic relationships, with redescription of Unio ravoisieri Deshayes, 1847 and U. durieui Deshayes, 1847

Khalloufi, Noureddine; Toledo, Carlos; Machordom, Annie; Boumaïza, Moncef; Araújo, Rafael

doi:10.1093/mollus/eyq046

Cited by 31 publications

(36 citation statements)

References 29 publications

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“…The phylogeny of this genus encompasses four main lineages: the pictorum, crassus, tumidus and gibbus lineage (Lopes-Lima et al 2016b). Over the last decade, the pictorum lineage was divided into six species: Unio pictorum (Linnaeus 1758), Unio mancus Lamarck 1819, Unio delphinus Spengler 1793, Unio ravoisieri Deshayes 1848, Unio elongatulus Pfeiffer 1825 and Unio caffer Krauss 1848 (Van Damme 1984;Appleton 1996;Araujo et al 2005;Khalloufi et al 2011;Prié et al 2012;Reis et al 2013;Prié and Puillandre 2014).…”

Section: Introductionmentioning

confidence: 99%

“…U. delphinus is present in most Western Iberian basins (Araujo et al 2009a). U. ravoisieri is confined to two locations (one small basin and a small lake) in Spain (Araujo et al 2009a) and Northwest Africa (Khalloufi et al 2011). U. mancus is restricted to Mediterranean basins, from Eastern Iberia (Araujo et al 2005) through France and Italy to the South-Eastern European countries (Haas 1969;Cuttelod et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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Who lives where? Molecular and morphometric analyses clarify which Unio species (Unionida, Mollusca) inhabit the southwestern Palearctic

et al. 2016

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Many doubts still exist about which freshwater mussel Unio species inhabit Northwest Africa. While some authors refer to the presence of Unio delphinus in the Atlantic North African basins of Morocco, a recent International Union for Conservation of Nature (IUCN) assessment performed on Moroccan Unio species, recognised the existence of a distinct species, Unio foucauldianus, with a critically endangered conservation status. The present study delivered new genetic, morphological, and geographical distribution data on two Unio species (i.e. U. delphinus and U. foucauldianus) greatly increasing the almost non-existent data on these taxa. Bayesian phylogenetic analysis revealed two highly supported geographically concordant clades, which diverged by 3.2 ± 0.6 % (uncorrected p distance): the first distributed across Iberia and corresponding to U. delphinus, and the second distributed across Morocco, corresponding to U. foucauldianus. These results were corroborated by the analysis of ten newly developed microsatellite loci as well as shell morphometry. We suggest that the IUCN critically endangered conservation status of U. foucauldianus should be revised and probably down-listed since its actual distribution is much wider than previously described. Phylogenetic relationships with the other Unio species were resolved, showing that U. delphinus and U. foucauldianus fall inside the pictorum lineage. The estimated molecular rate reported herein (0.265 ± 0.06 % per million years) represents the first for the Unionida and could be used as a reference in future studies.Electronic supplementary material The online version of this article

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Who lives where? Molecular and morphometric analyses clarify which Unio species (Unionida, Mollusca) inhabit the southwestern Palearctic

et al. 2016

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“…2 and 5; Table S1). Interestingly, the mean COI genetic distance between the newly sequenced Moroccan individuals and the previously published Tunisian ones (Khalloufi et al, 2011) is 1.5%, while 2.4% corresponds to the mean COI genetic distance between the entire L2 and the European L1. These results further add to the evidence of other studies (e.g.…”

Section: Genetic Differences Across the Mediterranean Geographic Discmentioning

confidence: 66%

“…amphibians: Recuero et al, 2007; and freshwater mussels, Unio sp. : Khalloufi et al, 2011) suggesting the presence of an important biogeographical barrier between eastern and western Maghreb.…”

Section: Genetic Differences Across the Mediterranean Geographic Discmentioning

confidence: 99%

“…The Iberian P. l. umbonata (Rossmäss-ler, 1844), was synonymized with P. l. littoralis (Araujo et al, 2009). Khalloufi et al (2011) have shown that P. l. fellmanni (Deshayes, 1848) populations present in Tunisia have considerable genetic differentiation of 3.16% (COI) from the Iberian P. l. littoralis populations. However, the remaining distribution of the subspecies, i.e., Morocco and Algeria, was not included in the study.…”

Section: Introductionmentioning

confidence: 99%

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Phylogeny, phylogeography, and evolution in the Mediterranean region: News from a freshwater mussel (Potomida, Unionida)

Froufe

Prié

Faria

et al. 2016

Molecular Phylogenetics and Evolution

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a b s t r a c tThe Potomida genus (Bivalvia, Unionida) has a Circum-Mediterranean distribution and like other freshwater mussel species, its populations have suffered dramatic declines. Although this genus is currently considered as monotypic, it has a long history of taxonomic revisions and presently many aspects of its systematics and evolutionary history are unclear. We sampled a total of 323 individuals from 39 different sites across the Potomida genus distribution, and sequenced two mitochondrial (16S rDNA and Cytochrome c Oxidase Subunit I) and one nuclear (28S rDNA) genes to clarify its phylogeny and phylogeographic history. Our results show that the genus includes two well-supported clades, one comprising solely the western Mediterranean species Potomida littoralis, and the other including two eastern Mediterranean species, the Greek endemic P. acarnanica and the Anatolian and Middle Eastern P. semirugata. We suggest that Potomida started radiating during the upper Miocene, and that both vicariance and dispersal events shaped the diversification and distribution of the genus along the Mediterranean region. P. littoralis is further divided in two mitochondrial lineages, one restricted to Europe and the other occurring mostly in North Africa. Moreover, some European basins present both lineages in sympatry. The conservation status of the three recognized species should be reevaluated, particularly P. acarnanica, since it is restricted to two Greek river basins presenting a high risk of extinction. Overall, our results clarify some important gaps in knowledge concerning the phylogeny, phylogeography and evolution of the Potomida genus in the Mediterranean region with important taxonomical, ecological and conservational implications.

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Molecular phylogeny, taxonomy, and distribution of French Unio species (Bivalvia, Unionidae)

Prié

Puillandre

2013

Hydrobiologia

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The unionids of Tunisia: taxonomy and phylogenetic relationships, with redescription of Unio ravoisieri Deshayes, 1847 and U. durieui Deshayes, 1847

Cited by 31 publications

References 29 publications

Who lives where? Molecular and morphometric analyses clarify which Unio species (Unionida, Mollusca) inhabit the southwestern Palearctic

Who lives where? Molecular and morphometric analyses clarify which Unio species (Unionida, Mollusca) inhabit the southwestern Palearctic

Phylogeny, phylogeography, and evolution in the Mediterranean region: News from a freshwater mussel (Potomida, Unionida)

Molecular phylogeny, taxonomy, and distribution of French Unio species (Bivalvia, Unionidae)

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