Aarhus Universitets segl

Rotiferan Hox genes give new insights into the evolution of metazoan bodyplans

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Dokumenter

DOI

  • Fröbius C. Andreas, Justus Liebig University Giessen, Tyskland
  • Peter Funch
The phylum Rotifera consists of minuscule, nonsegmented animals with a unique body plan and an unresolved phylogenetic position. The presence of pharyngeal articulated jaws supports an inclusion in Gnathifera nested in the Spiralia. Comparison of Hox genes, involved
in animal body plan patterning, can be used to infer phylogenetic relationships. Here, we report the expression of five Hox genes during embryogenesis of the rotifer Brachionus manjavacas and show how these genes define different functional components of the nervous
system and not the usual bilaterian staggered expression along the anteroposterior axis.Sequence analysis revealed that the lox5 parapeptide, a key signature in lophotrochozoan and platyhelminthean Hox6/lox5 genes, is absent and replaced by different signatures in Rotifera and Chaetognatha, and that the MedPost gene, until now unique to Chaetognatha, is also present in rotifers. Collectively, our results support an inclusion of chaetognaths in gnathiferans and Gnathifera as sister group to the remaining spiralians.
OriginalsprogEngelsk
Artikelnummer9
TidsskriftNature Communications
Vol/bind8
Antal sider10
ISSN2041-1723
DOI
StatusUdgivet - 4 apr. 2017

Se relationer på Aarhus Universitet Citationsformater

Download-statistik

Ingen data tilgængelig

ID: 111430788