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Nations JA, Giarla TC, Morni MA, William Dee J, Swanson MT, Hiller AE, Khan FAA, Esselstyn JA. Molecular data from the holotype of the enigmatic Bornean Black Shrew, Suncusater Medway, 1965 (Soricidae, Crocidurinae), place it in the genus Palawanosorex. Zookeys 2022; 1137:17-31. [PMID: 36760481 PMCID: PMC9836656 DOI: 10.3897/zookeys.1137.94217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 11/03/2022] [Indexed: 12/24/2022] Open
Abstract
Although Borneo has received more attention from biologists than most other islands in the Malay Archipelago, many questions regarding the systematic relationships of Bornean mammals remain. Using next-generation sequencing technology, we obtained mitochondrial DNA sequences from the holotype of Suncusater, the only known specimen of this shrew. Several shrews collected recently in Sarawak are closely aligned, both morphologically and mitochondrially, with the holotype of S.ater. Phylogenetic analyses of mitochondrial sequences indicate that the S.ater holotype and new Sarawak specimens do not belong to the genus Suncus, but instead are most closely related to Palawanosorexmuscorum. Until now Palawanosorex has been known only from the neighboring Philippine island of Palawan. Additional sequences from nuclear ultra-conserved elements from the new Sarawak specimens strongly support a sister relationship to P.muscorum. We therefore transfer ater to Palawanosorex. The new specimens demonstrate that P.ater is more widespread in northern Borneo than previously recorded. Continued sampling of Bornean mammal diversity and reexamination of type material are critical in understanding the evolutionary history of the biologically rich Malay Archipelago.
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Affiliation(s)
- Jonathan A. Nations
- Museum of Natural Science, Louisiana State University, Baton Rouge, LA 70803, USA,Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA,Current Address: Department of the Geophysical Sciences, University of Chicago, Chicago, IL 60637, USA
| | - Thomas C. Giarla
- Current Address: Field Museum of Natural History, Chicago, IL 60605, USA
| | - Muhd Amsyari Morni
- Department of Biology, Siena College, 515 Loudon Rd., Loudonville, NY 12211, USA
| | - Julius William Dee
- Department of Biology, Siena College, 515 Loudon Rd., Loudonville, NY 12211, USA
| | - Mark T. Swanson
- Museum of Natural Science, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Anna E. Hiller
- Museum of Natural Science, Louisiana State University, Baton Rouge, LA 70803, USA
| | | | - Jacob A. Esselstyn
- Museum of Natural Science, Louisiana State University, Baton Rouge, LA 70803, USA
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Voss RS. An Annotated Checklist of Recent Opossums (Mammalia: Didelphidae). BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY 2022. [DOI: 10.1206/0003-0090.455.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Robert S. Voss
- Division of Vertebrate Zoology (Mammalogy) American Museum of Natural History
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Boric-Bargetto D, Zúñiga-Reinoso Á, Inostroza-Michel O, Rodríguez-Serrano E, González-Acuña D, Palma RE, Hernández CE. A comprehensive overview of the genetic diversity in Thylamys elegans (Didelphimorphia: Didelphidae): establishing the phylogeographic determinants. REVISTA CHILENA DE HISTORIA NATURAL 2021. [DOI: 10.1186/s40693-021-00103-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Abstract
Background
For the genus Thylamys, the rivers have been reported as barriers to dispersal, limiting current and historical distribution of its lineages. We hypothesized that the Maipo river has affected the genetic structure of northern and southern lineages of Thylamys elegans, recovering a phylogenetic relationships with reciprocally monophyletic sister groups on opposite river banks. We evaluated the role of other rivers in the Mediterranean zone of Chile as historical and recent modulators of the biogeographic processes of this species.
Methods
We applied a phylogeographic approach, using the cytochrome-b mitochondrial gene for 93 individuals of T. elegans, from 37 localities in a latitudinal gradient between 21°25’ and 35˚56’S, encompassing a geographic area between the Atacama Desert and most of the Mediterranean Chilean zone.
Results
The phylogenetics results recovered six lineages within T. elegans: Thylamys elegans elegans, Thylamys elegans coquimbensis, the Loa lineage and three other lineages not described previously (Aconcagua, South 1 and South 2). We suggest that following rivers play a role like primary barrier: the Maipo river in the genetic differentiation of northern and southern ancestral lineages, and the Mataquito river and its tributary Teno river for the South 1 and South 2 lineages. On the other hand, the Quilimarí river preserve the genetic divergence in T. e. coquimbensis and Aconcagua lineage and the Aconcagua river in Aconcagua lineage and T. e. elegans acting like secondary barriers.
Conclusions
We concluded that the genetic diversity and biogeographic history of T. elegans was shaped by mountain glaciers, changes in river water levels during the Pleistocene glaciations and hyperaridity, promoting the differentiation and persistance of the T. elegans lineages.
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Giarla TC, Voss RS. On the Identity of Victoria's Mouse Opossum, Marmosa regina Thomas, 1898. AMERICAN MUSEUM NOVITATES 2020. [DOI: 10.1206/3960.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
| | - Robert S. Voss
- Division of Vertebrate Zoology (Mammalogy), American Museum of Natural History
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Voss RS, Giarla TC. A Revision of Philander (Marsupialia: Didelphidae), Part 2: Phylogenetic Relationships and Morphological Diagnosis of P. nigratus Thomas, 1923. AMERICAN MUSEUM NOVITATES 2020. [DOI: 10.1206/3955.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Robert S. Voss
- Division of Vertebrate Zoology (Mammalogy), American Museum of Natural History
| | - Thomas C. Giarla
- Department of Biology, Siena College, 109 Morrell Science Center, Loudonville, NY 12211
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