Arid
DOI10.11646/zootaxa.4105.4.3
Phylogenetic evaluation of taxonomic definition of didelphid mouse opossum of the genus Thylamys from valleys of Coquimbo region, Chile
Boric-Bargetto, Dusan1,2; Zuniga-Reinoso, Alvaro3; Cancino, Ricardo A.4; Gonzalez-Acuna, Daniel5; Rodriguez-Serrano, Enrique1; Eduardo Palma, R.4; Hernandez, Cristian E.1
通讯作者Boric-Bargetto, Dusan
来源期刊ZOOTAXA
ISSN1175-5326
EISSN1175-5334
出版年2016
卷号4105期号:4页码:339-352
英文摘要

Only two species of Didelphidae are currently recognized in Chile, the sister species Thylamys elegans, endemic of Mediterranean ecorregion and Thylamys pallidior, the inhabitant of the Puna and desert canyons. Three subspecies have been described for T. elegans: T. e. elegans, T. e. coquimbensis and T. e. soricinus. However, a recent study based on morphological analyses, synonymized T. elegans coquimbensis from the Coquimbo valleys (30-31 degrees S) with T. pallidior and proposed that T. elegans and T. pallidior could be in sympatry at Coquimbo valleys between Fray Jorge (30 degrees 40’s) and Paiguano (30 degrees 02’s). We assess the current definition of T. e. coquimbensis and T. e. elegans, as well as this taxonomical conflict among the mouse opossums from the Coquimbo valleys through phylogenetic analyses of cytochrome b mitochondrial gene sequences. In this study, for the first time, we used specimens from the type localities of T. e. coquimbensis and T. e. elegans. In addition, we analyzed diagnostic cranial structures for this taxonomic revision. The results supported two allopatric clades, allowing us to keep the taxonomic definition of T. e. elegans and T. e. coquimbensis as phylogenetic reciprocal monophyletic clades and polyphyletic with T. pallidior. This result corroborates previous morphological analyses, which support that mouse opossums from the Coquimbo valleys are T. e. coquimbensis, thus extending its geographic distribution to the coast of Coquimbo and Atacama regions. We don’t have evidence for sympatric distribution between T. elegans and T. pallidior in the Coquimbo region.


英文关键词Atacama Desert biodiversity Cyt b T. e. coquimbensis T. pallidior transversal valleys type locality sympatry synonymy
类型Article
语种英语
国家Chile
收录类别SCI-E
WOS记录号WOS:000375273000003
WOS关键词SOUTHERN SOUTH-AMERICA ; SMALL MAMMALS ; BIOGEOGRAPHIC RELATIONSHIPS ; EVOLUTIONARY TREES ; ATACAMA DESERT ; SEQUENCES ; MARSUPIALIA ; RADIATION ; BOOTSTRAP ; INFERENCE
WOS类目Zoology
WOS研究方向Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/196906
作者单位1.Univ Concepcion, Fac Ciencias Nat & Oceanog, Dept Zool, Barrio Univ S-N, Santiago, Chile;
2.Pontificia Univ Catolica Valparaiso, Inst Biol, Valparaiso 2373223, Chile;
3.Univ Chile, Fac Ciencias, Dept Ciencias Ecol, Lab Genet & Evoluc, Santiago 3425, Chile;
4.Pontificia Univ Catolica Chile, Fac Ciencias Biol, Dept Ecol, Alameda 340, Santiago 6513677, Chile;
5.Univ Concepcion, Dept Ciencias Pecuarias, Av Vicente Mendez 595, Chillan, Chile
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GB/T 7714
Boric-Bargetto, Dusan,Zuniga-Reinoso, Alvaro,Cancino, Ricardo A.,et al. Phylogenetic evaluation of taxonomic definition of didelphid mouse opossum of the genus Thylamys from valleys of Coquimbo region, Chile[J],2016,4105(4):339-352.
APA Boric-Bargetto, Dusan.,Zuniga-Reinoso, Alvaro.,Cancino, Ricardo A..,Gonzalez-Acuna, Daniel.,Rodriguez-Serrano, Enrique.,...&Hernandez, Cristian E..(2016).Phylogenetic evaluation of taxonomic definition of didelphid mouse opossum of the genus Thylamys from valleys of Coquimbo region, Chile.ZOOTAXA,4105(4),339-352.
MLA Boric-Bargetto, Dusan,et al."Phylogenetic evaluation of taxonomic definition of didelphid mouse opossum of the genus Thylamys from valleys of Coquimbo region, Chile".ZOOTAXA 4105.4(2016):339-352.
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