Data released on April 05, 2014
Atlantic horseshoe crabs (Limulus polyphemus) are marine arthropods with a fossil record extending back approximately 450 million years. They exhibit remarkable morphological stability over their long evolutionary history, retaining a number of ancestral arthropod traits, and are often cited as examples of “living fossils.”
We constructed a genetic linkage map of this 2.7 Gbp genome by sequencing the nuclear DNA of 34 wild-collected, full-sibling embryos and their parents at a mean redundancy of 1.1x per sample. The map includes 84,307 sequence markers grouped into 1,876 distinct genetic intervals and 5,775 candidate conserved protein coding genes.
Nossa, C. W., Havlak, P., Yue, J.-X., Lv, J., Vincent, K. Y., Brockmann, H. J., & Putnam, N. H. (2014). Joint assembly and genetic mapping of the Atlantic horseshoe crab genome reveals ancient whole genome duplication. GigaScience, 3(1). doi:10.1186/2047-217x-3-9