Incongruences between morphology and molecular phylogeny provide an insight into the diversification of the Crocidura poensis species complex
Abstract Untangling the factors of morphological evolution has long held a central role in the study of evolutionary biology. Extant speciose clades that have only recently diverged are ideal study subjects, as they allow the examination of rapid morphological variation in a phylogenetic context, pr...
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| Format: | Article |
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Nature Portfolio
2022-06-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-12615-5 |
| _version_ | 1828315909218893824 |
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| author | Inessa Voet Christiane Denys Marc Colyn Aude Lalis Adam Konečný Arnaud Delapré Violaine Nicolas Raphaël Cornette |
| author_facet | Inessa Voet Christiane Denys Marc Colyn Aude Lalis Adam Konečný Arnaud Delapré Violaine Nicolas Raphaël Cornette |
| author_sort | Inessa Voet |
| collection | DOAJ |
| description | Abstract Untangling the factors of morphological evolution has long held a central role in the study of evolutionary biology. Extant speciose clades that have only recently diverged are ideal study subjects, as they allow the examination of rapid morphological variation in a phylogenetic context, providing insights into a clade’s evolution. Here, we focus on skull morphological variability in a widely distributed shrew species complex, the Crocidura poensis species complex. The relative effects of taxonomy, size, geography, climate and habitat on skull form were tested, as well as the presence of a phylogenetic signal. Taxonomy was the best predictor of skull size and shape, but surprisingly both size and shape exhibited no significant phylogenetic signal. This paper describes one of the few cases within a mammal clade where morphological evolution does not match the phylogeny. The second strongest predictor for shape variation was size, emphasizing that allometry can represent an easily accessed source of morphological variability within complexes of cryptic species. Taking into account species relatedness, habitat preferences, geographical distribution and differences in skull form, our results lean in favor of a parapatric speciation model within this complex of species, where divergence occurred along an ecological gradient, rather than a geographic barrier. |
| first_indexed | 2024-04-13T17:07:37Z |
| format | Article |
| id | doaj.art-f19fe1f0604d40788a4babb40771c19c |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-13T17:07:37Z |
| publishDate | 2022-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-f19fe1f0604d40788a4babb40771c19c2022-12-22T02:38:26ZengNature PortfolioScientific Reports2045-23222022-06-0112111310.1038/s41598-022-12615-5Incongruences between morphology and molecular phylogeny provide an insight into the diversification of the Crocidura poensis species complexInessa Voet0Christiane Denys1Marc Colyn2Aude Lalis3Adam Konečný4Arnaud Delapré5Violaine Nicolas6Raphaël Cornette7Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, CP51Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, CP51ECOBIO UMR 6553, CNRS-Université de Rennes 1Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, CP51Department of Botany and Zoology, Faculty of Science, Masaryk UniversityInstitut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, CP51Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, CP51Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, CP51Abstract Untangling the factors of morphological evolution has long held a central role in the study of evolutionary biology. Extant speciose clades that have only recently diverged are ideal study subjects, as they allow the examination of rapid morphological variation in a phylogenetic context, providing insights into a clade’s evolution. Here, we focus on skull morphological variability in a widely distributed shrew species complex, the Crocidura poensis species complex. The relative effects of taxonomy, size, geography, climate and habitat on skull form were tested, as well as the presence of a phylogenetic signal. Taxonomy was the best predictor of skull size and shape, but surprisingly both size and shape exhibited no significant phylogenetic signal. This paper describes one of the few cases within a mammal clade where morphological evolution does not match the phylogeny. The second strongest predictor for shape variation was size, emphasizing that allometry can represent an easily accessed source of morphological variability within complexes of cryptic species. Taking into account species relatedness, habitat preferences, geographical distribution and differences in skull form, our results lean in favor of a parapatric speciation model within this complex of species, where divergence occurred along an ecological gradient, rather than a geographic barrier.https://doi.org/10.1038/s41598-022-12615-5 |
| spellingShingle | Inessa Voet Christiane Denys Marc Colyn Aude Lalis Adam Konečný Arnaud Delapré Violaine Nicolas Raphaël Cornette Incongruences between morphology and molecular phylogeny provide an insight into the diversification of the Crocidura poensis species complex Scientific Reports |
| title | Incongruences between morphology and molecular phylogeny provide an insight into the diversification of the Crocidura poensis species complex |
| title_full | Incongruences between morphology and molecular phylogeny provide an insight into the diversification of the Crocidura poensis species complex |
| title_fullStr | Incongruences between morphology and molecular phylogeny provide an insight into the diversification of the Crocidura poensis species complex |
| title_full_unstemmed | Incongruences between morphology and molecular phylogeny provide an insight into the diversification of the Crocidura poensis species complex |
| title_short | Incongruences between morphology and molecular phylogeny provide an insight into the diversification of the Crocidura poensis species complex |
| title_sort | incongruences between morphology and molecular phylogeny provide an insight into the diversification of the crocidura poensis species complex |
| url | https://doi.org/10.1038/s41598-022-12615-5 |
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