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Nucleomorph genome of Hemiselmis andersenii reveals complete intron loss and compaction
 

Summary: Nucleomorph genome of Hemiselmis andersenii
reveals complete intron loss and compaction
as a driver of protein structure and function
Christopher E. Lane*, Krystal van den Heuvel*, Catherine Kozera
, Bruce A. Curtis
, Byron J. Parsons
,
Sharen Bowman§
, and John M. Archibald*¶
*Canadian Institute for Advanced Research, Integrated Microbial Biodiversity Program, Department of Biochemistry and Molecular Biology, Dalhousie
University, Halifax, NS, Canada B3H 1X5; §Department of Process Engineering and Applied Science, Dalhousie University, Halifax, NS, Canada B3H 3J5;
and Atlantic Genome Centre, Halifax, NS, Canada B3J 1S5
Edited by Jeffrey D. Palmer, Indiana University, Bloomington, IN, and approved October 29, 2007 (received for review August 6, 2007)
Nucleomorphs are the remnant nuclei of algal endosymbionts that
took up residence inside a nonphotosynthetic eukaryotic host. The
nucleomorphs of cryptophytes and chlorarachniophytes are de-
rived from red and green algal endosymbionts, respectively, and
represent a stunning example of convergent evolution: their ge-
nomes have independently been reduced and compacted to <1
megabase pairs (Mbp) in size (the smallest nuclear genomes

  

Source: Archibald, John - Department of Biochemistry and Molecular Biology, Dalhousie University

 

Collections: Biology and Medicine