Caenorhabditis briggsae is is part of the Elegans group of Caenorhabditis species. Like C. elegans, it reproduces with selfing protandrous XX hermaphrodites and facultative X0 males, a mode of reproduction that evolved convergently in C. elegans, C. briggsae and C. tropicalis. The 104 Mb C. briggsae genome is distributed on six chromosomes. Molecular divergence with C. elegans is similar to the mouse-human distance, with saturation of neutral site turnover. The closest known relative of C. briggsae is C. nigoni, a male-female species with which it can produce partially fertile hybrids. C. briggsae is found worldwide in both tropical and temperate regions. Its optimal growth temperature is higher than that of C. elegans. C. briggsae is the second-best-studied species of the genus after C. elegans, with a number of available tools.
It has the following Web sources of information:
A general C. briggsae research page.
A GBrowse gateway for the current assembly (release CB4) at WormBase.
A genome browser gateway at the UC Santa Cruz Genome Center for the CB3 assembly.
A review article at WormBook.
A research article describing the genomic sequencing of C. briggsae, in PLoS Biology.
A subsequent article in PLoS Biology describing chromosomal orientation and synteny of the C. briggsae genomic sequence, and the CB3 genome assembly.
A WormBook methods chapter.
Live strains available from the CGC stock center.
A SNP project page from the Washington University Genome Sequencing Center (WU-GSC).
A genome page at WU-GSC.
Another genome page at the Sanger Institute.
Sex Determination: androdioecious
Haploid No. chromosomes: 6 (5 autosomes, XO)
Proteins: BP:.*
Species abbreviation in genetic nomenclature: Cbr-