Palaeoproteomics resolves sloth relationships

Samantha Louise Presslee; Graham J. Slater; Kirsty Elizabeth Helena Penkman; Matthew James Collins; Ross MacPhee; François Pujos; Analía M. Forasiepi; Roman Fischer; Kelly Molloy; Meaghan Mackie; Jesper V Olsen; Alejandro Kramarz; Matías Taglioretti; Fernando Scaglia; Maximiliano Lezcano; José Luis Lanata; John Southon; Robert Feranec; Jonathan Bloch; Adam Hajduk; Fabiana M. Martin; Rodolfo Salas Gismondi; Marcelo Reguero; Christian de Muizon; Alex D. Greenwood; Brian T. Chait

doi:10.1038/s41559-019-0909-z

Palaeoproteomics resolves sloth relationships

Samantha Louise Presslee, Graham J. Slater, Kirsty Elizabeth Helena Penkman, Matthew James Collins, Ross MacPhee, François Pujos, Analía M. Forasiepi, Roman Fischer, Kelly Molloy, Meaghan Mackie, Jesper V Olsen, Alejandro Kramarz, Matías Taglioretti, Fernando Scaglia, Maximiliano Lezcano, José Luis Lanata, John Southon, Robert Feranec, Jonathan Bloch, Adam HajdukFabiana M. Martin, Rodolfo Salas Gismondi, Marcelo Reguero, Christian de Muizon, Alex D. Greenwood, Brian T. Chait

Research output: Contribution to journal › Article › peer-review

Abstract

The living tree sloths Choloepus and Bradypus are the only remaining members of Folivora, a major xenarthran radiation that occupied a wide range of habitats in many parts of the western hemisphere during the Cenozoic, including both continents and the West Indies. Ancient DNA evidence has played only a minor role in folivoran systematics, as most sloths lived in places not conducive to genomic preservation. Here we utilize collagen sequence information, both separately and in combination with published mitochondrial DNA evidence, to assess the relationships of tree sloths and their extinct relatives. Results from phylogenetic analysis of these datasets differ substantially from morphology-based concepts: Choloepus groups with Mylodontidae, not Megalonychidae; Bradypus and Megalonyx pair together as megatherioids, while monophyletic Antillean sloths may be sister to all other folivorans. Divergence estimates are consistent with fossil evidence for mid-Cenozoic presence of sloths in the West Indies and an early Miocene radiation in South America.

Original language	English
Pages (from-to)	1121-1130
Number of pages	10
Journal	Nature Ecology and Evolution
Volume	3
Issue number	7
Early online date	6 Jun 2019
DOIs	https://doi.org/10.1038/s41559-019-0909-z
Publication status	Published - 1 Jul 2019

Bibliographical note

© The Author(s), under exclusive licence to Springer Nature Limited 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

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10.1038/s41559-019-0909-z

Presslee et al 2019 Nat Ecol & Evol AAM
© The Author(s), under exclusive licence to Springer Nature Limited 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.
Accepted author manuscript, 34.2 MB

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Presslee, S. L., Slater, G. J., Penkman, K. E. H., Collins, M. J., MacPhee, R., Pujos, F., Forasiepi, A. M., Fischer, R., Molloy, K., Mackie, M., Olsen, J. V., Kramarz, A., Taglioretti, M., Scaglia, F., Lezcano, M., Lanata, J. L., Southon, J., Feranec, R., Bloch, J., ... Chait, B. T. (2019). Palaeoproteomics resolves sloth relationships. Nature Ecology and Evolution, 3(7), 1121-1130. Advance online publication. https://doi.org/10.1038/s41559-019-0909-z

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abstract = "The living tree sloths Choloepus and Bradypus are the only remaining members of Folivora, a major xenarthran radiation that occupied a wide range of habitats in many parts of the western hemisphere during the Cenozoic, including both continents and the West Indies. Ancient DNA evidence has played only a minor role in folivoran systematics, as most sloths lived in places not conducive to genomic preservation. Here we utilize collagen sequence information, both separately and in combination with published mitochondrial DNA evidence, to assess the relationships of tree sloths and their extinct relatives. Results from phylogenetic analysis of these datasets differ substantially from morphology-based concepts: Choloepus groups with Mylodontidae, not Megalonychidae; Bradypus and Megalonyx pair together as megatherioids, while monophyletic Antillean sloths may be sister to all other folivorans. Divergence estimates are consistent with fossil evidence for mid-Cenozoic presence of sloths in the West Indies and an early Miocene radiation in South America.",

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Presslee, SL, Slater, GJ, Penkman, KEH , Collins, MJ, MacPhee, R, Pujos, F, Forasiepi, AM, Fischer, R, Molloy, K, Mackie, M, Olsen, JV, Kramarz, A, Taglioretti, M, Scaglia, F, Lezcano, M, Lanata, JL, Southon, J, Feranec, R, Bloch, J, Hajduk, A, Martin, FM, Gismondi, RS, Reguero, M, de Muizon, C, Greenwood, AD & Chait, BT 2019, 'Palaeoproteomics resolves sloth relationships', Nature Ecology and Evolution, vol. 3, no. 7, pp. 1121-1130. https://doi.org/10.1038/s41559-019-0909-z

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AU - Olsen, Jesper V

AU - Kramarz, Alejandro

AU - Taglioretti, Matías

AU - Scaglia, Fernando

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N2 - The living tree sloths Choloepus and Bradypus are the only remaining members of Folivora, a major xenarthran radiation that occupied a wide range of habitats in many parts of the western hemisphere during the Cenozoic, including both continents and the West Indies. Ancient DNA evidence has played only a minor role in folivoran systematics, as most sloths lived in places not conducive to genomic preservation. Here we utilize collagen sequence information, both separately and in combination with published mitochondrial DNA evidence, to assess the relationships of tree sloths and their extinct relatives. Results from phylogenetic analysis of these datasets differ substantially from morphology-based concepts: Choloepus groups with Mylodontidae, not Megalonychidae; Bradypus and Megalonyx pair together as megatherioids, while monophyletic Antillean sloths may be sister to all other folivorans. Divergence estimates are consistent with fossil evidence for mid-Cenozoic presence of sloths in the West Indies and an early Miocene radiation in South America.

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Palaeoproteomics resolves sloth relationships

Abstract

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