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Phylogenetic signal of genomic repeat abundances can be distorted by random homoplasy: a case study from hominid primates

  • Maria Martín-Peciña
    ,
  • Francisco J. Ruiz-Ruano
    ,
  • Juan Pedro M. Camacho
    ,
  • Steven Dodsworth
  • Universidad de Granada
    ,
  • Queen Mary University of London
Research Output:
Contribution to journal
Article
 Peer-review

Open access

Abstract

The genomic abundance of different types of repetitive DNA elements contains a phylogenetic signal useful for inferring the evolutionary history of different groups of organisms. Here we test the reliability of this approach using the Hominidae family of primates, whose consensus phylogeny is well accepted. We used the software RepeatExplorer to identify the different repetitive DNA clusters and quantify their abundances. With these data, we performed phylogenetic analyses by maximum parsimony, including one, two or three individuals per species, technical replicates, and including or discarding two clusters of repetitive elements (i.e. a satellite DNA and an endogenous retrovirus) that generated random homoplasy, because they were abundant in Pan and Gorilla but almost absent in Homo and Pongo. The only phylogenetic tree congruent with the accepted topology for hominids, thus coinciding with that obtained from the mitogenomes of the same individuals, was the one built after filtering out the libraries for the two homoplasious clusters and using three individuals per species. Our results suggest some caution in the use of repeat abundance for phylogenetic studies, because some element abundances are homoplasious, which severely distorts the phylogenetic signal owing to their differential amplification among evolutionary lineages.

Publication Information

Output type

Research Output:
Contribution to journal
Article
 Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 543-554 (12 pages)

Journal (Volume, Issue Number)

Zoological Journal of the Linnean Society (Volume 185, Issue 3)

Publication milestones

  • Accepted/In press - 14/09/2018
  • Published - 25/11/2018

Publication status

Published - 25/11/2018

ISSN

0024-4082

Publication IDs

  • handle.net: 10547/623140
  • Scopus: 85062483338

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