Mitogenome analyses elucidate the evolutionary relationships of a probable Eocene wet tropics relic in the xerophile lizard genus Acanthodactylus.
| Autor: | Kirchhof S; New York University Abu Dhabi, Abu Dhabi, Saadiyat Island, United Arab Emirates. sebastian.kirchhof@nyu.edu., Lyra ML; Instituto de Biociências, Departamento de Biodiversidade and Centro de Aquicultura (CAUNESP), Universidade Estadual Paulista, Rio Claro, SP, CEP 13506-900, Brazil., Rodríguez A; Institute of Zoology, University of Veterinary Medicine of Hannover, Bünteweg 17, 30559, Hannover, Germany., Ineich I; Institut de Systématique, Évolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, École Pratique des Hautes Études, Université des Antilles, CP 30, 57 rue Cuvier, 75005, Paris, France., Müller J; Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstr. 43, 10115, Berlin, Germany., Rödel MO; Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstr. 43, 10115, Berlin, Germany., Trape JF; Laboratoire de Paludologie et Zoologie médicale, IRD, UMR MIVEGEC, B. P. 1386, Dakar, Senegal., Vences M; Zoological Institute, Technische Universität Braunschweig, Mendelssohnstr. 4, 38106, Braunschweig, Germany., Boissinot S; New York University Abu Dhabi, Abu Dhabi, Saadiyat Island, United Arab Emirates. |
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| Jazyk: | angličtina |
| Zdroj: | Scientific reports [Sci Rep] 2021 Mar 01; Vol. 11 (1), pp. 4858. Date of Electronic Publication: 2021 Mar 01. |
| DOI: | 10.1038/s41598-021-83422-7 |
| Abstrakt: | Climate has a large impact on diversity and evolution of the world's biota. The Eocene-Oligocene transition from tropical climate to cooler, drier environments was accompanied by global species turnover. A large number of Old World lacertid lizard lineages have diversified after the Eocene-Oligocene boundary. One of the most speciose reptile genera in the arid Palearctic, Acanthodactylus, contains two sub-Saharan species with unresolved phylogenetic relationship and unknown climatic preferences. We here aim to understand how and when adaptation to arid conditions occurred in Acanthodactylus and when tropical habitats where entered. Using whole mitogenomes from fresh and archival DNA and published sequences we recovered a well-supported Acanthodactylus phylogeny and underpinned the timing of diversification with environmental niche analyses of the sub-Saharan species A. guineensis and A. boueti in comparison to all arid Acanthodactylus. We found that A. guineensis represents an old lineage that splits from a basal node in the Western clade, and A. boueti is a derived lineage and probably not its sister. Their long branches characterize them-and especially A. guineensis-as lineages that may have persisted for a long time without further diversification or have undergone multiple extinctions. Environmental niche models verified the occurrence of A. guineensis and A. boueti in hot humid environments different from the other 42 arid Acanthodactylus species. While A. guineensis probably remained in tropical habitat from periods prior to the Eocene-Oligocene boundary, A. boueti entered tropical environments independently at a later period. Our results provide an important baseline for studying adaptation and the transition from humid to arid environments in Lacertidae. |
| Databáze: | MEDLINE |
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