Phylogenomics of alligator lizards elucidate diversification patterns across the Mexican transition zone and support the recognition of a new genus
Genomic data continue to advance our understanding of species limits and biogeographic patterns. However, there is still no consensus regarding appropriate methods of phylogenomic analysis that make the best use of these heterogeneous data sets. In this study, we used thousands of ultraconserved e...
| Autores principales: | , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
2022
|
| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/24916/1/24916.pdf |
| _version_ | 1824420016978657280 |
|---|---|
| author | Blair, Christopher Bryson Jr., Robert W. |
| author_facet | Blair, Christopher Bryson Jr., Robert W. |
| author_sort | Blair, Christopher |
| collection | Repositorio Institucional |
| description | Genomic data continue to advance our understanding of species limits and biogeographic patterns. However, there
is still no consensus regarding appropriate methods of phylogenomic analysis that make the best use of these
heterogeneous data sets. In this study, we used thousands of ultraconserved element (UCE) loci from alligator lizards
in the genus Gerrhonotus to compare and contrast species trees inferred using multiple contemporary methods and
provide a time frame for biological diversification across the Mexican Transition Zone (MTZ). Concatenated maximum
likelihood (ML) and Bayesian analyses provided highly congruent results, with differences limited to poorly supported
nodes. Similar topologies were inferred from coalescent analyses in Bayesian Phylogenetics and Phylogeography
and SVDquartets, albeit with lower support for some nodes. All divergence times fell within the Miocene, linking
speciation to local Neogene vicariance and/or global cooling trends following the mid-Miocene Climatic Optimum. We
detected a high level of genomic divergence for a morphologically distinct species restricted to the arid mountains of
north-eastern Mexico, and erected a new genus to better reflect evolutionary history. In summary, our results further
advocate leveraging the strengths and weaknesses of concatenation and coalescent methods, provide evidence for old
divergences for alligator lizards, and indicate that the MTZ continues to harbour substantial unrecognized diversity. |
| format | Article |
| id | eprints-24916 |
| institution | UANL |
| language | English |
| publishDate | 2022 |
| record_format | eprints |
| spelling | eprints-249162023-03-11T02:04:32Z http://eprints.uanl.mx/24916/ Phylogenomics of alligator lizards elucidate diversification patterns across the Mexican transition zone and support the recognition of a new genus Blair, Christopher Bryson Jr., Robert W. QL Zoología Genomic data continue to advance our understanding of species limits and biogeographic patterns. However, there is still no consensus regarding appropriate methods of phylogenomic analysis that make the best use of these heterogeneous data sets. In this study, we used thousands of ultraconserved element (UCE) loci from alligator lizards in the genus Gerrhonotus to compare and contrast species trees inferred using multiple contemporary methods and provide a time frame for biological diversification across the Mexican Transition Zone (MTZ). Concatenated maximum likelihood (ML) and Bayesian analyses provided highly congruent results, with differences limited to poorly supported nodes. Similar topologies were inferred from coalescent analyses in Bayesian Phylogenetics and Phylogeography and SVDquartets, albeit with lower support for some nodes. All divergence times fell within the Miocene, linking speciation to local Neogene vicariance and/or global cooling trends following the mid-Miocene Climatic Optimum. We detected a high level of genomic divergence for a morphologically distinct species restricted to the arid mountains of north-eastern Mexico, and erected a new genus to better reflect evolutionary history. In summary, our results further advocate leveraging the strengths and weaknesses of concatenation and coalescent methods, provide evidence for old divergences for alligator lizards, and indicate that the MTZ continues to harbour substantial unrecognized diversity. 2022 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/24916/1/24916.pdf http://eprints.uanl.mx/24916/1.haspreviewThumbnailVersion/24916.pdf Blair, Christopher y Bryson Jr., Robert W. (2022) Phylogenomics of alligator lizards elucidate diversification patterns across the Mexican transition zone and support the recognition of a new genus. Biological Journal of the Linnean Society, 135. pp. 24-39. |
| spellingShingle | QL Zoología Blair, Christopher Bryson Jr., Robert W. Phylogenomics of alligator lizards elucidate diversification patterns across the Mexican transition zone and support the recognition of a new genus |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Phylogenomics of alligator lizards elucidate diversification patterns across the Mexican transition zone and support the recognition of a new genus |
| title_full | Phylogenomics of alligator lizards elucidate diversification patterns across the Mexican transition zone and support the recognition of a new genus |
| title_fullStr | Phylogenomics of alligator lizards elucidate diversification patterns across the Mexican transition zone and support the recognition of a new genus |
| title_full_unstemmed | Phylogenomics of alligator lizards elucidate diversification patterns across the Mexican transition zone and support the recognition of a new genus |
| title_short | Phylogenomics of alligator lizards elucidate diversification patterns across the Mexican transition zone and support the recognition of a new genus |
| title_sort | phylogenomics of alligator lizards elucidate diversification patterns across the mexican transition zone and support the recognition of a new genus |
| topic | QL Zoología |
| url | http://eprints.uanl.mx/24916/1/24916.pdf |
| work_keys_str_mv | AT blairchristopher phylogenomicsofalligatorlizardselucidatediversificationpatternsacrossthemexicantransitionzoneandsupporttherecognitionofanewgenus AT brysonjrrobertw phylogenomicsofalligatorlizardselucidatediversificationpatternsacrossthemexicantransitionzoneandsupporttherecognitionofanewgenus |