[Coral-List] New Article

["Jorge H. Pinzón C."]

Dear all,

I am pleased to announce the publication of the following our recent manuscript:

Pinzón, JH, J Beach-Letendre, E Weil, LD Mydlarz. Relationship between phylogeny and immunity suggests older Caribbean coral lineages are more resistant to disease. PLoS ONE 9(8): e104787. doi: 10.1371/journal.pone.0104787

The article can be found in: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0104787

Abstract

Diseases affect coral species fitness and contribute significantly to the deterioration of coral reefs. The increase in frequency and severity of disease outbreaks has made evaluating and determining coral resistance a priority. Phylogenetic patterns in immunity and disease can provide important insight to how corals may respond to current and future environmental and/or biologically induced diseases. The purpose of this study was to determine if immunity, number of diseases and disease prevalence show a phylogenetic signal among Caribbean corals. We characterized the constitutive levels of six distinct innate immune traits in 14 Caribbean coral species and tested for the presence of a phylogenetic signal on each trait. Results indicate that constitutive levels of some individual immune related processes (i.e. melanin concentration, peroxidase and inhibition of bacterial growth), as well as their combination show a phylogenetic signal. Additionally, both the number of diseases affecting each species and disease prevalence (as measures of disease burden) show a significant phylogenetic signal. The phylogenetic signal of immune related processes, combined with estimates of species divergence times, indicates that among the studied species, those belonging to older lineages tend to resist/fight infections better than more recently diverged coral lineages. This result, combined with the increasing stressful conditions on corals in the Caribbean, suggest that future reefs in the region will likely be dominated by older lineages while modern species may face local population declines and/or geographic extinction.

Suerte,
Jorge


Dr. Jorge H. Pinzón C.
MS Marine Biologist
PhD Biology
Research Educator ASSURE
University of Texas Arlington
College of Science
501 S. Nedderman
105A Life Science
Arlington TX 76019
Tel:(817)272-3692
pinzon at uta.edu	
www.uta.edu/faculty/pinzon