Phylogenetic relationships among the species of the Cameroonian endemic freshwater crab genus Louisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae), with notes on intraspecific morphological variation within two threatened species
Louisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae) currently includes four endemic Cameroonian freshwater crab species whose phylogenetic relationships were previously unresolved. In the present study, phylogenetic analyses are carried out involving three mtDNA loci (COI, 12S rRNA, and...
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| Format: | Article |
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Pensoft Publishers
2022-09-01
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| Series: | ZooKeys |
| Online Access: | https://zookeys.pensoft.net/article/85791/download/pdf/ |
| _version_ | 1818032750171521024 |
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| author | Pierre A. Mvogo Ndongo Thomas von Rintelen Paul F. Clark Adnan Shahdadi Carine Rosine Tchietchui Neil Cumberlidge |
| author_facet | Pierre A. Mvogo Ndongo Thomas von Rintelen Paul F. Clark Adnan Shahdadi Carine Rosine Tchietchui Neil Cumberlidge |
| author_sort | Pierre A. Mvogo Ndongo |
| collection | DOAJ |
| description | Louisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae) currently includes four endemic Cameroonian freshwater crab species whose phylogenetic relationships were previously unresolved. In the present study, phylogenetic analyses are carried out involving three mtDNA loci (COI, 12S rRNA, and 16S rRNA). The COI locus revealed divergence times of 5.6 million years ago (myr) for when L. balssi (Bott, 1959) diverged from L. edeaensis (Bott, 1969); 4.1 myr for when L. edeaensis diverged from L. yabassi Mvogo Ndongo, von Rintelen & Cumberlidge, 2019; and 2.48 myr for when the later species diverged from L. nkongsamba Mvogo Ndongo, von Rintelen & Cumberlidge, 2019. Three genetic lineages were found within L. nkongsamba that are supported by uncorrected p-distances and the haplotype network. Morphological variation in some taxonomically important characters was found within both L. nkongsamba and L. yabassi. No correlation, however, was found between the morphotypes within these species and the uncovered genetic lineages. Recognition of species boundaries and of subpopulations of species will prove valuable when making informed conservation decisions as part of the development of species action plans for these rare and threatened freshwater crabs. |
| first_indexed | 2024-12-10T06:12:20Z |
| format | Article |
| id | doaj.art-6a4421c151c44359ad9918cbddfd3947 |
| institution | Directory Open Access Journal |
| issn | 1313-2970 |
| language | English |
| last_indexed | 2024-12-10T06:12:20Z |
| publishDate | 2022-09-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | ZooKeys |
| spelling | doaj.art-6a4421c151c44359ad9918cbddfd39472022-12-22T01:59:31ZengPensoft PublishersZooKeys1313-29702022-09-01112212514310.3897/zookeys.1122.8579185791Phylogenetic relationships among the species of the Cameroonian endemic freshwater crab genus Louisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae), with notes on intraspecific morphological variation within two threatened speciesPierre A. Mvogo Ndongo0Thomas von Rintelen1Paul F. Clark2Adnan Shahdadi3Carine Rosine Tchietchui4Neil Cumberlidge5Université de Douala à YabassMuseum für Naturkunde, Leibniz Institute for Evolution and Biodiversity ScienceDepartment of Life Sciences, The Natural History MuseumUniversity of HormozganUniversity of DoualaNorthern Michigan UniversityLouisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae) currently includes four endemic Cameroonian freshwater crab species whose phylogenetic relationships were previously unresolved. In the present study, phylogenetic analyses are carried out involving three mtDNA loci (COI, 12S rRNA, and 16S rRNA). The COI locus revealed divergence times of 5.6 million years ago (myr) for when L. balssi (Bott, 1959) diverged from L. edeaensis (Bott, 1969); 4.1 myr for when L. edeaensis diverged from L. yabassi Mvogo Ndongo, von Rintelen & Cumberlidge, 2019; and 2.48 myr for when the later species diverged from L. nkongsamba Mvogo Ndongo, von Rintelen & Cumberlidge, 2019. Three genetic lineages were found within L. nkongsamba that are supported by uncorrected p-distances and the haplotype network. Morphological variation in some taxonomically important characters was found within both L. nkongsamba and L. yabassi. No correlation, however, was found between the morphotypes within these species and the uncovered genetic lineages. Recognition of species boundaries and of subpopulations of species will prove valuable when making informed conservation decisions as part of the development of species action plans for these rare and threatened freshwater crabs.https://zookeys.pensoft.net/article/85791/download/pdf/ |
| spellingShingle | Pierre A. Mvogo Ndongo Thomas von Rintelen Paul F. Clark Adnan Shahdadi Carine Rosine Tchietchui Neil Cumberlidge Phylogenetic relationships among the species of the Cameroonian endemic freshwater crab genus Louisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae), with notes on intraspecific morphological variation within two threatened species ZooKeys |
| title | Phylogenetic relationships among the species of the Cameroonian endemic freshwater crab genus Louisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae), with notes on intraspecific morphological variation within two threatened species |
| title_full | Phylogenetic relationships among the species of the Cameroonian endemic freshwater crab genus Louisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae), with notes on intraspecific morphological variation within two threatened species |
| title_fullStr | Phylogenetic relationships among the species of the Cameroonian endemic freshwater crab genus Louisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae), with notes on intraspecific morphological variation within two threatened species |
| title_full_unstemmed | Phylogenetic relationships among the species of the Cameroonian endemic freshwater crab genus Louisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae), with notes on intraspecific morphological variation within two threatened species |
| title_short | Phylogenetic relationships among the species of the Cameroonian endemic freshwater crab genus Louisea Cumberlidge, 1994 (Crustacea, Brachyura, Potamonautidae), with notes on intraspecific morphological variation within two threatened species |
| title_sort | phylogenetic relationships among the species of the cameroonian endemic freshwater crab genus louisea cumberlidge 1994 crustacea brachyura potamonautidae with notes on intraspecific morphological variation within two threatened species |
| url | https://zookeys.pensoft.net/article/85791/download/pdf/ |
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