Stripes Matter: Integrative Systematics of <i>Coryphellina rubrolineata</i> Species Complex (Gastropoda: Nudibranchia) from Vietnam
<i>Coryphellina rubrolineata</i> (Gastropoda: Nudibranchia: Flabellinidae) was believed to be a widespread tropical species demonstrating high diversity in external and internal morphological traits. In this paper, we perform an integrative analysis of the <i>C. rubrolineata</i&...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-04-01
|
| Series: | Diversity |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-2818/14/4/294 |
| _version_ | 1797436027373092864 |
|---|---|
| author | Irina Ekimova Yury Deart Tatiana Antokhina Anna Mikhlina Dimitry Schepetov |
| author_facet | Irina Ekimova Yury Deart Tatiana Antokhina Anna Mikhlina Dimitry Schepetov |
| author_sort | Irina Ekimova |
| collection | DOAJ |
| description | <i>Coryphellina rubrolineata</i> (Gastropoda: Nudibranchia: Flabellinidae) was believed to be a widespread tropical species demonstrating high diversity in external and internal morphological traits. In this paper, we perform an integrative analysis of the <i>C. rubrolineata</i> species complex based on samples collected in Vietnam waters, combined with available data from other localities of the Indo-West Pacific. The methods of the study include morphological analysis of external and internal traits using light and scanning electron microscopy and the molecular analysis of four markers (COI, 16S, H3, and 28S). The phylogenetic hypothesis was performed using Bayesian and maximum likelihood approaches, and the species delimitation analyses included ASAP, GMYC, and bPTP. Our results support the validity of the genus <i>Coryphellina</i> as a distinct taxon and confirm that <i>Coryphellina rubrolineata</i> is restricted to the type locality and adjacent waters, while in the Indo-West Pacific, it represents a complex of pseudocryptic species. Based on our integrative analysis, we describe four new species: <i>Coryphellina pseudolotos</i> sp. nov., <i>Coryphellina pannae</i> sp. nov., <i>Coryphellina flamma</i> sp. nov., and <i>Coryphellina aurora</i> sp. nov. For the first time, <i>Coryphellina lotos</i> is reported in Vietnam waters. All five species differ in combination of coloration and other external traits and show minor differences in internal morphology. |
| first_indexed | 2024-03-09T10:56:44Z |
| format | Article |
| id | doaj.art-e2ab1c1e39284b15a9b252483913afe1 |
| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-09T10:56:44Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Diversity |
| spelling | doaj.art-e2ab1c1e39284b15a9b252483913afe12023-12-01T01:37:41ZengMDPI AGDiversity1424-28182022-04-0114429410.3390/d14040294Stripes Matter: Integrative Systematics of <i>Coryphellina rubrolineata</i> Species Complex (Gastropoda: Nudibranchia) from VietnamIrina Ekimova0Yury Deart1Tatiana Antokhina2Anna Mikhlina3Dimitry Schepetov4Invertebrate Zoology Department, Lomonosov Moscow State University, Leninskie gori 1-12, 119234 Moscow, RussiaA.N. Severtsov Institute of Ecology and Evolution, Leninskiy prosp. 33, 119071 Moscow, RussiaA.N. Severtsov Institute of Ecology and Evolution, Leninskiy prosp. 33, 119071 Moscow, RussiaN.A. Pertsov White Sea Biological Station, Faculty of Biology, Lomonosov Moscow State University, Leninskie gori 1-12, 119234 Moscow, RussiaInvertebrate Zoology Department, Lomonosov Moscow State University, Leninskie gori 1-12, 119234 Moscow, Russia<i>Coryphellina rubrolineata</i> (Gastropoda: Nudibranchia: Flabellinidae) was believed to be a widespread tropical species demonstrating high diversity in external and internal morphological traits. In this paper, we perform an integrative analysis of the <i>C. rubrolineata</i> species complex based on samples collected in Vietnam waters, combined with available data from other localities of the Indo-West Pacific. The methods of the study include morphological analysis of external and internal traits using light and scanning electron microscopy and the molecular analysis of four markers (COI, 16S, H3, and 28S). The phylogenetic hypothesis was performed using Bayesian and maximum likelihood approaches, and the species delimitation analyses included ASAP, GMYC, and bPTP. Our results support the validity of the genus <i>Coryphellina</i> as a distinct taxon and confirm that <i>Coryphellina rubrolineata</i> is restricted to the type locality and adjacent waters, while in the Indo-West Pacific, it represents a complex of pseudocryptic species. Based on our integrative analysis, we describe four new species: <i>Coryphellina pseudolotos</i> sp. nov., <i>Coryphellina pannae</i> sp. nov., <i>Coryphellina flamma</i> sp. nov., and <i>Coryphellina aurora</i> sp. nov. For the first time, <i>Coryphellina lotos</i> is reported in Vietnam waters. All five species differ in combination of coloration and other external traits and show minor differences in internal morphology.https://www.mdpi.com/1424-2818/14/4/294cryptic diversityspecies delimitationmolecular phylogenychromatic variationIndo-West Pacificmollusca |
| spellingShingle | Irina Ekimova Yury Deart Tatiana Antokhina Anna Mikhlina Dimitry Schepetov Stripes Matter: Integrative Systematics of <i>Coryphellina rubrolineata</i> Species Complex (Gastropoda: Nudibranchia) from Vietnam Diversity cryptic diversity species delimitation molecular phylogeny chromatic variation Indo-West Pacific mollusca |
| title | Stripes Matter: Integrative Systematics of <i>Coryphellina rubrolineata</i> Species Complex (Gastropoda: Nudibranchia) from Vietnam |
| title_full | Stripes Matter: Integrative Systematics of <i>Coryphellina rubrolineata</i> Species Complex (Gastropoda: Nudibranchia) from Vietnam |
| title_fullStr | Stripes Matter: Integrative Systematics of <i>Coryphellina rubrolineata</i> Species Complex (Gastropoda: Nudibranchia) from Vietnam |
| title_full_unstemmed | Stripes Matter: Integrative Systematics of <i>Coryphellina rubrolineata</i> Species Complex (Gastropoda: Nudibranchia) from Vietnam |
| title_short | Stripes Matter: Integrative Systematics of <i>Coryphellina rubrolineata</i> Species Complex (Gastropoda: Nudibranchia) from Vietnam |
| title_sort | stripes matter integrative systematics of i coryphellina rubrolineata i species complex gastropoda nudibranchia from vietnam |
| topic | cryptic diversity species delimitation molecular phylogeny chromatic variation Indo-West Pacific mollusca |
| url | https://www.mdpi.com/1424-2818/14/4/294 |
| work_keys_str_mv | AT irinaekimova stripesmatterintegrativesystematicsoficoryphellinarubrolineataispeciescomplexgastropodanudibranchiafromvietnam AT yurydeart stripesmatterintegrativesystematicsoficoryphellinarubrolineataispeciescomplexgastropodanudibranchiafromvietnam AT tatianaantokhina stripesmatterintegrativesystematicsoficoryphellinarubrolineataispeciescomplexgastropodanudibranchiafromvietnam AT annamikhlina stripesmatterintegrativesystematicsoficoryphellinarubrolineataispeciescomplexgastropodanudibranchiafromvietnam AT dimitryschepetov stripesmatterintegrativesystematicsoficoryphellinarubrolineataispeciescomplexgastropodanudibranchiafromvietnam |