Using multilocus approach to uncover cryptic diversity within Pseudotrapelus lizards from Saudi Arabia
The agamid Pseudotrapelus lizards inhabit the mountainous areas of the Arabian Peninsula and eastern North Africa. Currently six Pseudotrapelus species are recognised, though diagnostic morphological characters are still lacking, creating great difficulty in describing new species. Recently, two specimens of Pseudotrapelus were collected from the vicinity of Riyadh in central Saudi Arabia, an area that was not sampled in previous phylogenetic studies. In here we used both mitochondrial and nuclear data to investigate the phylogenetic position of the new samples, and assess their phylogenetic relationships with the other recognised species of Pseudotrapelus from across the distribution range of the genus. We used a multilocus approach of haplotype networks, concatenated datasets and species trees, performed mitochondrial and nuclear species delimitation analyses, and estimated divergence times. In general, our results support previous molecular studies and uncover the presence of cryptic diversity within Pseudotrapelus. The phylogenetic structure of the genus is of two major clades and within them seven distinct, delimited phylogenetic groups belonging to the six recognised species and the seventh to the individuals from Riyadh. The Riyadh specimens were distinct in all analyses performed. We suggest that the new specimens from the Riyadh area are a distinct lineage, forming a clade with their phylogenetic relatives, P. sinaitus and P. chlodnickii. The clade formed by these three species diverged during the Late Miocene around 6.4 Ma, with cladogenesis possibly facilitated by vicariance and isolation caused due to climatic fluctuations and the progression of sandy areas. Our results suggest further morphological research is necessary to revise the taxonomic status of this lineage and of the entire genus.
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Elsevier
2019-11
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Subjects: | Agamidae, Arabia, Multilocus phylogeny, Reptiles, Species delimitation, |
Online Access: | http://hdl.handle.net/10261/207579 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100011033 |
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dig-ibe-es-10261-2075792021-12-28T15:50:55Z Using multilocus approach to uncover cryptic diversity within Pseudotrapelus lizards from Saudi Arabia Tamar, Karin Chirio, Laurent Shobrak, Mohammed Y. Busais, Salem Carranza, Salvador Ministerio de Economía y Competitividad (España) European Commission Ministerio de Ciencia, Innovación y Universidades (España) Agencia Estatal de Investigación (España) Agamidae Arabia Multilocus phylogeny Reptiles Species delimitation The agamid Pseudotrapelus lizards inhabit the mountainous areas of the Arabian Peninsula and eastern North Africa. Currently six Pseudotrapelus species are recognised, though diagnostic morphological characters are still lacking, creating great difficulty in describing new species. Recently, two specimens of Pseudotrapelus were collected from the vicinity of Riyadh in central Saudi Arabia, an area that was not sampled in previous phylogenetic studies. In here we used both mitochondrial and nuclear data to investigate the phylogenetic position of the new samples, and assess their phylogenetic relationships with the other recognised species of Pseudotrapelus from across the distribution range of the genus. We used a multilocus approach of haplotype networks, concatenated datasets and species trees, performed mitochondrial and nuclear species delimitation analyses, and estimated divergence times. In general, our results support previous molecular studies and uncover the presence of cryptic diversity within Pseudotrapelus. The phylogenetic structure of the genus is of two major clades and within them seven distinct, delimited phylogenetic groups belonging to the six recognised species and the seventh to the individuals from Riyadh. The Riyadh specimens were distinct in all analyses performed. We suggest that the new specimens from the Riyadh area are a distinct lineage, forming a clade with their phylogenetic relatives, P. sinaitus and P. chlodnickii. The clade formed by these three species diverged during the Late Miocene around 6.4 Ma, with cladogenesis possibly facilitated by vicariance and isolation caused due to climatic fluctuations and the progression of sandy areas. Our results suggest further morphological research is necessary to revise the taxonomic status of this lineage and of the entire genus. We wish to thank Benoit Chague for his help in the field. This work was supported by the Ministerio de Economía y Competitividad, Spain (co-funded by FEDER) under grant numbers CGL2015-70390-P and PGC2018-098290-B-I00. We are thankful to the Deanship of academic research at Taif University for support on the first field trip to Saudi Arabia under Grant no. 1-433-2108. 2020-04-15T07:30:28Z 2020-04-15T07:30:28Z 2019-11 2020-04-15T07:30:28Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1016/j.sjbs.2019.05.006 issn: 1319-562X Saudi Journal of Biological Sciences 26(7): 1442-1449 (2019) http://hdl.handle.net/10261/207579 10.1016/j.sjbs.2019.05.006 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100011033 31762607 #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2015-70390-P info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-098290-B-100 PGC2018-098290-B-100/AEI/10.13039/501100011033 http://doi.org/10.1016/j.sjbs.2019.05.006 Sí none Elsevier |
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Agamidae Arabia Multilocus phylogeny Reptiles Species delimitation Agamidae Arabia Multilocus phylogeny Reptiles Species delimitation Tamar, Karin Chirio, Laurent Shobrak, Mohammed Y. Busais, Salem Carranza, Salvador Using multilocus approach to uncover cryptic diversity within Pseudotrapelus lizards from Saudi Arabia |
description |
The agamid Pseudotrapelus lizards inhabit the mountainous areas of the Arabian Peninsula and eastern North Africa. Currently six Pseudotrapelus species are recognised, though diagnostic morphological characters are still lacking, creating great difficulty in describing new species. Recently, two specimens of Pseudotrapelus were collected from the vicinity of Riyadh in central Saudi Arabia, an area that was not sampled in previous phylogenetic studies. In here we used both mitochondrial and nuclear data to investigate the phylogenetic position of the new samples, and assess their phylogenetic relationships with the other recognised species of Pseudotrapelus from across the distribution range of the genus. We used a multilocus approach of haplotype networks, concatenated datasets and species trees, performed mitochondrial and nuclear species delimitation analyses, and estimated divergence times. In general, our results support previous molecular studies and uncover the presence of cryptic diversity within Pseudotrapelus. The phylogenetic structure of the genus is of two major clades and within them seven distinct, delimited phylogenetic groups belonging to the six recognised species and the seventh to the individuals from Riyadh. The Riyadh specimens were distinct in all analyses performed. We suggest that the new specimens from the Riyadh area are a distinct lineage, forming a clade with their phylogenetic relatives, P. sinaitus and P. chlodnickii. The clade formed by these three species diverged during the Late Miocene around 6.4 Ma, with cladogenesis possibly facilitated by vicariance and isolation caused due to climatic fluctuations and the progression of sandy areas. Our results suggest further morphological research is necessary to revise the taxonomic status of this lineage and of the entire genus. |
author2 |
Ministerio de Economía y Competitividad (España) |
author_facet |
Ministerio de Economía y Competitividad (España) Tamar, Karin Chirio, Laurent Shobrak, Mohammed Y. Busais, Salem Carranza, Salvador |
format |
artículo |
topic_facet |
Agamidae Arabia Multilocus phylogeny Reptiles Species delimitation |
author |
Tamar, Karin Chirio, Laurent Shobrak, Mohammed Y. Busais, Salem Carranza, Salvador |
author_sort |
Tamar, Karin |
title |
Using multilocus approach to uncover cryptic diversity within Pseudotrapelus lizards from Saudi Arabia |
title_short |
Using multilocus approach to uncover cryptic diversity within Pseudotrapelus lizards from Saudi Arabia |
title_full |
Using multilocus approach to uncover cryptic diversity within Pseudotrapelus lizards from Saudi Arabia |
title_fullStr |
Using multilocus approach to uncover cryptic diversity within Pseudotrapelus lizards from Saudi Arabia |
title_full_unstemmed |
Using multilocus approach to uncover cryptic diversity within Pseudotrapelus lizards from Saudi Arabia |
title_sort |
using multilocus approach to uncover cryptic diversity within pseudotrapelus lizards from saudi arabia |
publisher |
Elsevier |
publishDate |
2019-11 |
url |
http://hdl.handle.net/10261/207579 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100011033 |
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