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Hydra – Emerging Model System

Hydra – Emerging Model System. Phylogeny. History. Abraham Trembley (1744) Mémoires pour servir à l'histoire d'un genre de polypes d'eau douce , Gebr. Verbeek, Leiden. Hydra vulgaris Ind-Pune. Phylum : Cnidaria Class : Hydrozoa Family : Hydridae Genus : Hydra. Scale bar = 2.5 mm.

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Hydra – Emerging Model System

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  1. Hydra– Emerging Model System

  2. Phylogeny

  3. History Abraham Trembley (1744) Mémoires pour servir à l'histoire d'un genre de polypes d'eau douce, Gebr. Verbeek, Leiden

  4. Hydra vulgarisInd-Pune Phylum : Cnidaria Class : Hydrozoa Family : Hydridae Genus : Hydra Scale bar = 2.5 mm

  5. General Morphology of Hydra

  6. Stem Cells

  7. Types of Nematocysts Scale bar = 5μm

  8. Asexual Reproduction by Budding Scale bar = 0.1mm

  9. Regeneration Capacity of Hydra Longitudinal cut Traverse cut Trisection

  10. Tissue Dynamics

  11. Genome 2n=30 Genome Size ~1.3 G bp Genome Assemblies –H.magnipapillata, H.vulgaris Ind-Pune (Adapted from Anokhin et.al., 2010)

  12. What we can learn from Hydra Phylogeny (At the base of metazoan phyla) Evolutionary transition (body axis, germ layers, gonads, cell types) Pattern formation (peculiar tissue dynamics make hydra a perpetual embryo) Regeneration, stem cells

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