Mouse Lemur assembly and gene annotation


This is the first release of the low-coverage 1.93X assembly of the mouse lemur (Microcebus murinus). The genome sequencing and assembly is provided by the Broad Institute.

The N50 size is the length such that 50% of the assembled genome lies in blocks of the N50 size or longer. The N50 length for supercontigs is 107.02 kb and is 3.51 kb for contigs. The total number of bases in supercontigs is 2.89 Gb and in contigs is 1.85 Gb.

Gene annotation

Owing to the fragmentary nature of this preliminary assembly, it was necessary to arrange some scaffolds into "gene-scaffold" super-structures,in order to present complete genes. There are 4903 such gene scaffolds, with identifiers of the form "GeneScaffold_1".

Microcebus murinus is one of 24 mammals that will be sequenced as part of the Mammalian Genome Project, funded by the National Institutes of Health (NIH). A group of species were chosen to maximise the branch length of the evolutionary tree while representing the diversity of mammalian species. Low-coverage 2X assemblies will be produced for these mammals and used in alignments for cross-species comparison. The aim is to increase our understanding of functional elements, especially in the human genome.

More information

General information about this species can be found in Wikipedia.



AssemblymicMur1, Jun 2007
Database version83.1
Base Pairs1,852,394,361
Golden Path Length2,910,103,014
Genebuild byEnsembl
Genebuild methodProjection build
Genebuild startedJul 2007
Genebuild releasedMar 2008
Genebuild last updated/patchedMay 2010

Gene counts

Coding genes16,319
Non coding genes7,111
Small non coding genes5,235
Misc non coding genes1,876
Gene transcripts25,035


Genscan gene predictions75,990