Successive radiations, not stasis, in the South American primate fauna

Jason A. Hodgson, Kirstin N. Sterner, Luke J. Matthews, Andrew S. Burrell, Rachana A. Jani, Ryan L. Raaum, Caro Beth Stewart, Todd Disotell

    Research output: Contribution to journalArticle

    Abstract

    The earliest Neotropical primate fossils complete enough for taxonomic assessment, Dolichocebus, Tremacebus, and Chilecebus, date to approximately 20 Ma. These have been interpreted as either closely related to extant forms or as extinct stem lineages. The former hypothesis of morphological stasis requires most living platyrrhine genera to have diverged before 20 Ma. To test this hypothesis, we collected new complete mitochondrial genomes from Aotus lemurinus, Saimiri sciureus, Saguinus oedipus, Ateles belzebuth, and Callicebus donacophilus. We combined these with published sequences from Cebus albifrons and other primates to infer the mitochondrial phylogeny. We found support for a cebid/atelid clade to the exclusion of the pitheciids. Then, using Bayesian methods and well-supported fossil calibration constraints, we estimated that the platyrrhine most recent common ancestor (MRCA) dates to 19.5 Ma, with all major lineages diverging by 14.3 Ma. Next, we estimated catarrhine divergence dates on the basis of platyrrhine divergence scenarios and found that only a platyrrhine MRCA less than 21 Ma is concordant with the catarrhine fossil record. Finally, we calculated that 33% more change in the rate of evolution is required for platyrrhine divergences consistent with the morphologic stasis hypothesis than for a more recent radiation. We conclude that Dolichocebus, Tremacebus, and Chilecebus are likely too old to be crown platyrrhines, suggesting they were part of an extinct early radiation. We note that the crown platyrrhine radiation was concomitant with the radiation of 2 South American xenarthran lineages and follows a global temperature peak and tectonic activity in the Andes.

    Original languageEnglish (US)
    Pages (from-to)5534-5539
    Number of pages6
    JournalProceedings of the National Academy of Sciences of the United States of America
    Volume106
    Issue number14
    DOIs
    StatePublished - Apr 7 2009

    Fingerprint

    Primates
    Radiation
    Crowns
    Pitheciidae
    Atelinae
    Saguinus
    Cebus
    Saimiri
    Mitochondrial Genome
    Bayes Theorem
    Phylogeny
    Calibration
    Temperature

    Keywords

    • Mitochondrial phylogeny
    • Molecular clock
    • New world monkeys primate evolution
    • Platyrrhine origins

    ASJC Scopus subject areas

    • General

    Cite this

    Hodgson, J. A., Sterner, K. N., Matthews, L. J., Burrell, A. S., Jani, R. A., Raaum, R. L., ... Disotell, T. (2009). Successive radiations, not stasis, in the South American primate fauna. Proceedings of the National Academy of Sciences of the United States of America, 106(14), 5534-5539. https://doi.org/10.1073/pnas.0810346106

    Successive radiations, not stasis, in the South American primate fauna. / Hodgson, Jason A.; Sterner, Kirstin N.; Matthews, Luke J.; Burrell, Andrew S.; Jani, Rachana A.; Raaum, Ryan L.; Stewart, Caro Beth; Disotell, Todd.

    In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 106, No. 14, 07.04.2009, p. 5534-5539.

    Research output: Contribution to journalArticle

    Hodgson, JA, Sterner, KN, Matthews, LJ, Burrell, AS, Jani, RA, Raaum, RL, Stewart, CB & Disotell, T 2009, 'Successive radiations, not stasis, in the South American primate fauna', Proceedings of the National Academy of Sciences of the United States of America, vol. 106, no. 14, pp. 5534-5539. https://doi.org/10.1073/pnas.0810346106
    Hodgson, Jason A. ; Sterner, Kirstin N. ; Matthews, Luke J. ; Burrell, Andrew S. ; Jani, Rachana A. ; Raaum, Ryan L. ; Stewart, Caro Beth ; Disotell, Todd. / Successive radiations, not stasis, in the South American primate fauna. In: Proceedings of the National Academy of Sciences of the United States of America. 2009 ; Vol. 106, No. 14. pp. 5534-5539.
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    AU - Jani, Rachana A.

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