The tiger pufferfish, Takifugu rubripes (fugu) was proposed as a genomic
model because of its compact genome. The genome of fugu was sequenced to
the draft level in 2002 as the second vertebrate genome to be fully sequenced.
However, the assembly of the draft genome sequence is highly fragmented
due to the lack of a chromosomal coordinate. To extend the contiguity of
the assembly to the chromosomal level, we have generated the second generation
genetic map of fugu and anchored the scaffolds of the assembly to the 22
chromosomes of fugu. The map consists of 1,220 microsatellite markers that
provide anchor points to scaffolds covering 86% of the genome assembly.The
consolidated genome map of fugu is a valuable resource for comparative
genomics and for elucidating the genetic basis of the phenotypic diversity
of ∼25 species of fugu and its related species that diverged within the
last 5 million years.
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