Sequencing and Analysis of the Hydra Genome
Chapman, Kirkness et al., Nature
An international research collaboration reports their sequencing and analysis of the Hydra magnipapillata genome, and compare it to the genomes of several other organisms. "The Hydra genome has been shaped by bursts of transposable element expansion, horizontal gene transfer, trans-splicing, and simplification of gene structure and gene content that parallel simplification of the Hydra life cycle," the authors write. They team suggests that comparisons of the Hydra genome to the reported sequences of other animals have helped them to elucidate the evolution of several of the organism's characteristics.
Q&A: Fungus or Algae? Using Mass Spec to Try to Settle Permian-Triassic Extinction Debate
Mark Sephton and his colleagues used GC-MS to analyze Reduviasporonites and determined it was fungus not algae, as has been believed. The work supports the theory that the source of a mass extinction that took place 250 million years ago was natural rather than extraterrestrial.
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