02443nas a2200193 4500008004100000020002300041245014200064210006900206260001500275300001000290490000700300520178100307100002102088700002702109700001902136700002702155700002002182856004702202 2024 eng d a1768-14481314-261500aDNA taxonomy reveals high species diversity among the stygobiont genus Metastenasellus (Crustacea, Isopoda) in African groundwater0 aDNA taxonomy reveals high species diversity among the stygobiont c07/02/2024 a51-710 v483 a
This study aimed to explore the species diversity within the isopod genus Metastenasellus in Benin and Cameroon. Compared to other parts of the world, the described diversity of stygobiotic crustaceans in Africa is low due to a dearth of studies and taxonomic expertise. However, recent research activities in Benin and Cameroon suggest higher groundwater diversity than previously envisioned. Recent sampling campaigns in these countries have shown that Metastenasellus is a major group in the underground aquatic environment. The accumulation of biological material provided an opportunity to explore species diversity within the genus using a DNA taxonomy approach based on the cytochrome c oxidase subunit I (COI) gene fragment. Despite the limitations of using a single-locus approach for species delimitation, an overview of the diversity within the genus Metastenasellus was obtained, revealing the presence of 23 distinct lineages. Several elements suggest that most, if not all, of these lineages represent valid species. These include high genetic distances between lineages, morphologically distinct species separated by genetic distances of the same order of magnitude as between other described lineages, and the coexistence of different lineages at the same stations. Despite a limited sampling effort, these first results indicate a high level of species diversity and endemism within Metastenasellus in the studied regions. The narrow geographic distribution of the lineages suggests strong isolation and limited dispersal abilities. This study highlights the potential for discovering a significant number of new species within this genus and emphasizes the need for further research to uncover the extent of diversity in African stygobiotic isopods.
1 aLagnika, Moissou1 aKayo, Raoul, Polycarpe1 aSonet, Gontran1 aFlot, Jean-François1 aMartin, Patrick uhttps://doi.org/10.3897/subtbiol.48.11302200662nas a2200169 4500008004100000022001400041245015100055210006900206260001600275300001700291490000800308100002000316700001900336700002000355700002300375856009400398 2019 eng d a0024-408200aPhylogenetic analysis of the Baikalodrilus species flock (Annelida: Clitellata: Naididae), an endemic genus to Lake Baikal (Russia)Abstract0 aPhylogenetic analysis of the iBaikalodrilusi species flock Annel cMay-09-2019 a987 – 10150 v1871 aMartin, Patrick1 aSonet, Gontran1 aSmitz, Nathalie1 aBackeljau, Thierry uhttps://academic.oup.com/zoolinnean/advance-article/doi/10.1093/zoolinnean/zlz066/556017600557nas a2200145 4500008004100000245013200041210006900173260001600242300001400258100002300272700002000295700002300315700003000338856004300368 2015 eng d00aDNA analyses reveal abundant homoplasy in taxonomically important morphological characters of Eusiroidea (Crustacea, Amphipoda)0 aDNA analyses reveal abundant homoplasy in taxonomically importan cJan-12-2015 an/a - n/a1 aVerheye, Marie, L.1 aMartin, Patrick1 aBackeljau, Thierry1 aD'Acoz, Cédric, D'Udekem uhttp://doi.wiley.com/10.1111/zsc.1215300782nas a2200229 4500008004100000245015100041210006900192260001600261300001100277490000600288100002500294700001900319700003300338700002200371700002000393700001700413700001800430700002100448700002000469700002100489856004200510 2013 eng d00aGenetic and Morphological Divergences in the Cosmopolitan Deep-Sea Amphipod Eurythenes gryllus Reveal a Diverse Abyss and a Bipolar Species0 aGenetic and Morphological Divergences in the Cosmopolitan DeepSe cJan-09-2015 ae742180 v81 aHavermans, Charlotte1 aSonet, Gontran1 ad’Udekem'd’Acoz, Cédric1 aNagy, Zoltán, T.1 aMartin, Patrick1 aBrix, Saskia1 aRiehl, Torben1 aAgrawal, Shobhit1 aHeld, Christoph1 aFontaneto, Diego uhttps://jemu.myspecies.info/node/441400890nas a2200253 4500008004100000022001300041245014300054210006900197260001200266300001400278490000700292653001300299653001400312653000800326653001900334653002400353653001900377100002500396700002200421700001900443700002200462700002000484856013200504 2010 eng d a1055790300aIncongruence between molecular phylogeny and morphological classification in amphipod crustaceans: A case study of Antarctic lysianassoids0 aIncongruence between molecular phylogeny and morphological class c04/2010 a202 - 2090 v5510a28S rRNA10aAmphipoda10aCOI10aLysianassoidea10aMolecular phylogeny10aSouthern Ocean1 aHavermans, Charlotte1 aNagy, Zoltán, T.1 aSonet, Gontran1 aDe Broyer, Claude1 aMartin, Patrick uhttps://jemu.myspecies.info/incongruence-between-molecular-phylogeny-and-morphological-classification-amphipod-crustaceans-case