Genome size (smallest eukaryotic nuclear genome)

Value 2.3 Mbp Range: Table - link Mbp
Organism Microsporidian Encephalitozoon intestinalis
Reference Corradi N, Pombert JF, Farinelli L, Didier ES, Keeling PJ. The complete sequence of the smallest known nuclear genome from the microsporidian Encephalitozoon intestinalis. Nat Commun. 2010 Sep 21 1: 77. doi: 10.1038/ncomms1082. abstract and p.3 table 1PubMed ID20865802
Comments "The genome of the microsporidia Encephalitozoon cuniculi is widely recognized as a model for extreme reduction and compaction. At only 2.9?Mbp (BNID 105426), the genome encodes approximately 2,000 densely packed genes and little else. However, the nuclear genome of its sister, Encephalitozoon intestinalis, is even more reduced at 2.3?Mbp, it represents a 20% reduction from an already severely compacted genome, raising the question, what else can be lost?" According to table 1 M. intestinalis has 1,833 predicted ORFs and 11 chromosomes
Entered by Uri M
ID 110288