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Parallel adaptive radiations in two major clades of placental mammals

Author

Listed:
  • Ole Madsen

    (University of Nijmegen)

  • Mark Scally

    (University of California
    Queen's University of Belfast, Biology and Biochemistry)

  • Christophe J. Douady

    (University of California
    Queen's University of Belfast, Biology and Biochemistry)

  • Diana J. Kao

    (University of California)

  • Ronald W. DeBry

    (Box 210006, University of Cincinnati)

  • Ronald Adkins

    (University of Massachusetts)

  • Heather M. Amrine

    (University of California
    Graduate Group in Genetics, University of California)

  • Michael J. Stanhope

    (Queen's University of Belfast, Biology and Biochemistry
    Bioinformatics, SmithKline Beecham Pharmaceuticals)

  • Wilfried W. de Jong

    (University of Nijmegen
    Institute for Biodiversity and Ecosystem Dynamics)

  • Mark S. Springer

    (University of California
    Graduate Group in Genetics, University of California)

Abstract

Higher level relationships among placental mammals, as well as the historical biogeography and morphological diversification of this group, remain unclear1,2,3. Here we analyse independent molecular data sets, having aligned lengths of DNA of 5,708 and 2,947 base pairs, respectively, for all orders of placental mammals. Phylogenetic analyses resolve placental orders into four groups: Xenarthra, Afrotheria, Laurasiatheria, and Euarchonta plus Glires. The first three groups are consistently monophyletic with different methods of analysis. Euarchonta plus Glires is monophyletic or paraphyletic depending on the phylogenetic method. A unique nine-base-pair deletion in exon 11 of the BRCA1 gene provides additional support for the monophyly of Afrotheria, which includes proboscideans, sirenians, hyracoids, tubulidentates, macroscelideans, chrysochlorids and tenrecids. Laurasiatheria contains cetartiodactyls, perissodactyls, carnivores, pangolins, bats and eulipotyphlan insectivores. Parallel adaptive radiations have occurred within Laurasiatheria and Afrotheria. In each group, there are aquatic, ungulate and insectivore-like forms.

Suggested Citation

  • Ole Madsen & Mark Scally & Christophe J. Douady & Diana J. Kao & Ronald W. DeBry & Ronald Adkins & Heather M. Amrine & Michael J. Stanhope & Wilfried W. de Jong & Mark S. Springer, 2001. "Parallel adaptive radiations in two major clades of placental mammals," Nature, Nature, vol. 409(6820), pages 610-614, February.
    • Handle: RePEc:nat:nature:v:409:y:2001:i:6820:d:10.1038_35054544
    DOI: 10.1038/35054544
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    Cited by:

    1. Li, Yushuang & Liu, Qian & Zheng, Xiaoqi, 2016. "DUC-Curve, a highly compact 2D graphical representation of DNA sequences and its application in sequence alignment," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 456(C), pages 256-270.

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