1 / 8

Phylogenetic Relationships of Seven Echinoderms

Phylogenetic Relationships of Seven Echinoderms. By Cristina Wittkopp. Echinoderms. Deuterostomes (means mouth second) – chordates, hemichordates and echinoderms Branched from Hemichordates aprroximately 875 mya. (Blair,2005) Posess pentaradial symmetry. Pelmatozoa- Antedon mediterrenea.

roza
Download Presentation

Phylogenetic Relationships of Seven Echinoderms

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Phylogenetic Relationships of Seven Echinoderms By Cristina Wittkopp

  2. Echinoderms Deuterostomes (means mouth second) – chordates, hemichordates and echinoderms Branched from Hemichordates aprroximately 875 mya. (Blair,2005) Posess pentaradial symmetry

  3. Pelmatozoa- Antedon mediterrenea

  4. Echinozoa Apostichopus japonicus Echinometra Cucumaria frondosa

  5. These trees are based on molecular data. A. Lafay et al. (1995) and B. Wada et al. (1996) These trees are based on morpholophy. A. Gale (1987 and B. Blake (1987) (Wray G, Knott E, 2000)

  6. Asteroizoa Astropecten polyacanthus-Paxillosida Patiria miniata- Velvatida Crossaster papposus- Velatida

  7. Echinoderms are monophyletic

  8. References Knott E, Wray G (2000) Controversy and Consensus in Asteroid Systematics: New Insights to Ordinal and Familial Relationships. American Zoologist. 40: 382-392 Blair J, Hedges S.(2005) Molecular Phylogeny and Divergence Times of Deuterostome Animals. Molecular Biology and Evolution. 22: 2275-2288.

More Related