Diverge and Conquer: Phylogenomics of southern Wallacean forest skinks (Genus: Sphenomorphus) and their colonization of the Lesser Sunda Archipelago.

Autor: Reilly SB; Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, CA, 94720, USA., Karin BR; Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, CA, 94720, USA., Stubbs AL; Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, CA, 94720, USA., Arida E; Museum Zoologicum Bogoriense, Indonesian Institute of Sciences, Cibinong, Indonesia., Arifin U; Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, CA, 94720, USA.; Zoology Museum Hamburg, Leibniz Institute for the Analysis of Biodiversity Change, Martin-Luther-King-Platz 3, 20146, Hamburg, Germany., Kaiser H; Department of Biology, Victor Valley College, 18422 Bear Valley Road, Victorville, California, 92395, USA.; Zoologisches Forschungsmuseum Alexander Koenig, Adenauerallee 160, 53113, Bonn, Germany., Bi K; Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, CA, 94720, USA.; Computational Genomics Resource Laboratory, California Institute for Quantitative Biosciences, University of California, Berkeley, CA, 94720, USA., Hamidy A; Museum Zoologicum Bogoriense, Indonesian Institute of Sciences, Cibinong, Indonesia., Iskandar DT; Basic Sciences Commission, Indonesian Academy of Sciences, 11, Jl. Medan Merdeka, Selatan Jakarta, 10110, Indonesia.; School of Life Sciences and Technology, Institut Teknologi Bandung, 10 Jalan Ganesha, Bandung, 40132, Indonesia., McGuire JA; Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, CA, 94720, USA.
Jazyk: angličtina
Zdroj: Evolution; international journal of organic evolution [Evolution] 2022 Oct; Vol. 76 (10), pp. 2281-2301. Date of Electronic Publication: 2022 Aug 19.
DOI: 10.1111/evo.14592
Abstrakt: The archipelagos of Wallacea extend between the Sunda and Sahul Shelves, serving as a semipermeable two-way filter influencing faunal exchange between Asia and Australo-Papua. Forest skinks (Genus Sphenomorphus) are widespread throughout southern Wallacea and exhibit complex clinal, ontogenetic, sexual, and seasonal morphological variation, rendering species delimitation difficult. We screened a mitochondrial marker for 245 Sphenomorphus specimens from this area to inform the selection of 104 samples from which we used targeted sequence capture to generate a dataset of 1154 nuclear genes (∼1.8 Mb) plus complete mitochondrial genomes. Phylogenomic analyses recovered many deeply divergent lineages, three pairs of which are now sympatric, that began to diversify in the late Miocene shortly after the oldest islands are thought to have become emergent. We infer a complex and nonstepping-stone pattern of island colonization, with the group having originated in the Sunda Arc islands before using Sumba as a springboard for colonization of the Banda Arcs. Estimates of population structure and gene flow across the region suggest total isolation except between two Pleistocene Aggregate Island Complexes that become episodically land-bridged during glacial maxima. These historical processes have resulted in at least 11 Sphenomorphus species in the region, nine of which require formal description. This fine-scale geographic partitioning of undescribed species highlights the importance of utilizing comprehensive genomic studies for defining biodiversity hotspots to be considered for conservation protection.
(© 2022 The Authors. Evolution © 2022 The Society for the Study of Evolution.)
Databáze: MEDLINE
Externí odkaz: