Dr. Harald Gruber-Vodicka

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Project Leader

Department of Symbiosis

MPI for Marine Microbiology
Celsiusstr. 1
D-28359 Bremen




+49 421 2028-7600

Dr. Harald Gruber-Vodicka

Research Interests

Evolution, Function and Ecology of Marine Symbioses

My research focuses on the evolution, the function and the ecology of marine symbioses. I strive to test hypotheses and to gain a mechanistic understanding of the functions and processes in marine animal-microbe interactions. I am particularily interested in intracellular interactions and I use two main models, chemosynthetic symbioses in shallow water sediments and placozoans – microscopic benthic grazers on biofilms. In addition I develop bioinformatics tools to integrate molecular ecology and next generation sequencing.

Main research topics are
  • Host - Symbiont fidelity
  • Symbiont Function
  • Host - Symbiont Interaction
  • Reductive Genome Evolution
  • Host and Symbiont Taxonomy
I have developed software that analyses metagenomes based on the small subunit ribosomal RNA (SSU) reads and reconstructs full length SSU genes from metagenomic data for all domains of life

phyloFlash - rapid reconstruction and phylogenetic exploration of SSU rRNAs from Illumina (meta)genomic or transcriptomic datasets


Please visit my personal homepage for more details:


I have authored more than 40 publications covering intricate symbioses from several animal and protist phyla, expanding the known biodiversity and types of interactions. I heavily use and also published bioinformatic tools. For a full list of publications, please refer to my Google Scholar Profile

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