Genomic resources and comparative analyses of two economical penaeid shrimp species, Marsupenaeus japonicus and Penaeus monodon

Penaeid shrimps are among the most economically important crustaceans, which provide an important global food source. These species exhibit complex body plans and novelties, such as segments and appendages, which render them interesting organisms for developmental biology study of crustaceans. However, limited genomic resources have been put forward for the researches of them. Here, we report the genome sequencing and draft assembly of two economically important penaeid shrimp species, Marsupenaeus japonicus and Penaeus monodon. A total of 132.86 Gb and 132.83 Gb sequencing data was obtained in the two shrimp species. The genome assembly, a total length of 1.94 Gb and 2.04 Gb in M. japonicus and P. monodon, respectively, covers more than 97% of coding regions. We further identified 626 Mb (34.96%) and 833 Mb (46.68%) repeats, 16,716 and 18,100 genes in these two genomes, respectively. We also identified Hox genes that are important to their body plans. These data will provide valuable resources for the study of selective breeding and some plastic biological characters of penaeid shrimps, including molting, lobstering, brooding eggs and sensitization in humans.