Details

Autor(en) / Beteiligte

• Kulagin, Dmitry N.
• Lunina, Anastasiia A.
• Simakova, Ulyana V.
• Vedenin, Andrey A.
• Vereshchaka, Alexander L.

Titel

Revision of the ‘Acanthephyra purpurea’ species complex (Crustacea: Decapoda), with an emphasis on species diversification in the Atlantic

Ist Teil von

• Molecular phylogenetics and evolution, 2024-06, Vol.195, p.108070-108070, Article 108070

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2024

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• [Display omitted] •‘Acanthephyra purpurea’ species complex is non-monophyletic and consists of two species groups.•A. acanthitelsonis, A. pelagica, and A. sica represent a single genetically cohesive species distributed throughout Atlantic.•Two major clades of ‘A. purpurea’ group show parallel phylogeographic trends in diversification.•Elongated posterior pleonic somites provide evolutionary success in colonization of the pelagic. We inventoried all nine species of the ‘Acanthephyra purpurea’ complex, one of the most abundant and cosmopolitan group of mesopelagic shrimps. We used 119 specimens at hand and genetic data for 124 specimens from GenBank and BOLD. Phylogenetic analysis of four genes (COI, 16S, NaK, and enolase) showed that the ‘Acanthephyra purpurea’ complex is polyphyletic and encompasses two species groups, ‘A. purpurea’ (mostly Atlantic) and ‘A. smithi’ (Indo-West Pacific). The ‘A. purpurea’ species group consists of two major molecular clades A. pelagica and A. kingsleyi – A. purpurea - A. quadrispinosa. Molecular data suggest that hitherto accepted species A. acanthitelsonis, A. pelagica, and A. sica should be considered as synonyms. The Atlantic is inhabited by at least two cryptic genetic lineages of A. pelagica and A. quadrispinosa. Morphological analyses of qualitative and quantitative (900 measurements) characters resulted in a tabular key to species and in a finding of four evolutionary traits. Atlantic species showed various scenarios of diversification visible on mitochondrial gene level, nuclear gene level, and morphological level. We recorded and discussed similar phylogeographic trends in diversification and in distribution of genetic lineages within two different clades: A. pelagica and A. kingsleyi – A. purpurea - A. quadrispinosa.