A mitogenomic timetree for Darwin’s enigmatic South American mammal Macrauchenia patachonica

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The unusual mix of morphological traits displayed by extinct South American native ungulates (SANUs) confounded both Charles Darwin, who first discovered them, and Richard Owen, who tried to resolve their relationships. Here we report an almost complete mitochondrial genome for the litoptern Macrauc...

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Autores principales: Westbury, Michael, Baleka, Sina, Barlow, Axel, Hartmann, Stefanie, Paijmans, Johanna L.A., Kramarz, Alejandro, Forasiepi, Anaía M., Bond, Mariano, Gelfo, Javier Nicolás, Reguero, Marcelo Alfredo, López Mendoza, Patricio, Taglioretti, Matías, Scaglia, Fernando, Rinderknecht, Andrés, Jones, Washington, Mena, Francisco, Billet, Guillaume, de Muizon, Christian, Aguilar, José Luis, MacPhee, Ross D. E., Hofreiter, Michael
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Naturales
Palaeontology
Phylogenetics
Taxonomy
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81780
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81780
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Palaeontology
Phylogenetics
Taxonomy
spellingShingle Ciencias Naturales
Palaeontology
Phylogenetics
Taxonomy
Westbury, Michael
Baleka, Sina
Barlow, Axel
Hartmann, Stefanie
Paijmans, Johanna L.A.
Kramarz, Alejandro
Forasiepi, Anaía M.
Bond, Mariano
Gelfo, Javier Nicolás
Reguero, Marcelo Alfredo
López Mendoza, Patricio
Taglioretti, Matías
Scaglia, Fernando
Rinderknecht, Andrés
Jones, Washington
Mena, Francisco
Billet, Guillaume
de Muizon, Christian
Aguilar, José Luis
MacPhee, Ross D. E.
Hofreiter, Michael
A mitogenomic timetree for Darwin’s enigmatic South American mammal Macrauchenia patachonica
topic_facet Ciencias Naturales
Palaeontology
Phylogenetics
Taxonomy
description The unusual mix of morphological traits displayed by extinct South American native ungulates (SANUs) confounded both Charles Darwin, who first discovered them, and Richard Owen, who tried to resolve their relationships. Here we report an almost complete mitochondrial genome for the litoptern Macrauchenia. Our dated phylogenetic tree places Macrauchenia as sister to Perissodactyla, but close to the radiation of major lineages within Laurasiatheria. This position is consistent with a divergence estimate of B66Ma (95% credibility interval, 56.64–77.83 Ma) obtained for the split between Macrauchenia and other Panperissodactyla. Combined with their morphological distinctiveness, this evidence supports the positioning of Litopterna (possibly in company with other SANU groups) as a separate order within Laurasiatheria. We also show that, when using strict criteria, extinct taxa marked by deep divergence times and a lack of close living relatives may still be amenable to palaeogenomic analysis through iterative mapping against more distant relatives.
format Articulo
Articulo
author Westbury, Michael
Baleka, Sina
Barlow, Axel
Hartmann, Stefanie
Paijmans, Johanna L.A.
Kramarz, Alejandro
Forasiepi, Anaía M.
Bond, Mariano
Gelfo, Javier Nicolás
Reguero, Marcelo Alfredo
López Mendoza, Patricio
Taglioretti, Matías
Scaglia, Fernando
Rinderknecht, Andrés
Jones, Washington
Mena, Francisco
Billet, Guillaume
de Muizon, Christian
Aguilar, José Luis
MacPhee, Ross D. E.
Hofreiter, Michael
author_facet Westbury, Michael
Baleka, Sina
Barlow, Axel
Hartmann, Stefanie
Paijmans, Johanna L.A.
Kramarz, Alejandro
Forasiepi, Anaía M.
Bond, Mariano
Gelfo, Javier Nicolás
Reguero, Marcelo Alfredo
López Mendoza, Patricio
Taglioretti, Matías
Scaglia, Fernando
Rinderknecht, Andrés
Jones, Washington
Mena, Francisco
Billet, Guillaume
de Muizon, Christian
Aguilar, José Luis
MacPhee, Ross D. E.
Hofreiter, Michael
author_sort Westbury, Michael
title A mitogenomic timetree for Darwin’s enigmatic South American mammal Macrauchenia patachonica
title_short A mitogenomic timetree for Darwin’s enigmatic South American mammal Macrauchenia patachonica
title_full A mitogenomic timetree for Darwin’s enigmatic South American mammal Macrauchenia patachonica
title_fullStr A mitogenomic timetree for Darwin’s enigmatic South American mammal Macrauchenia patachonica
title_full_unstemmed A mitogenomic timetree for Darwin’s enigmatic South American mammal Macrauchenia patachonica
title_sort mitogenomic timetree for darwin’s enigmatic south american mammal macrauchenia patachonica
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/81780
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