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    Argonauta argo (Linnaeus, 1758) (Animalia: Mollusca: Cephalopoda: Octopoda: Argonautidae: Argonauta) is a cosmopolitan pelagic octopus distributed in tropical and subtropical waters. Only females of the genus has a calcified but brittle, shell-like eggcase, which was formed from the secretion of organic materials from their arms. This is interesting, because Argonauta shares its putative ancestor with shell-less octopods, such as the blanket octopus. Therefore, this organism is a prospective new research model to study the evolution of ectopic shell formation. This web site provides information of A. argo genome and transcriptome data publicly, to be used by interested biologists for their study on this enigmatic organism.

     Citations
    Masa-aki Yoshida, Kazuki Hirota, Junichi Imoto, Miki Okuno, Hiroyuki Tanaka, Rei Kajitani, Atsushi Toyoda, Takehiko Itoh, Kazuho Ikeo, Takenori Sasaki, Davin H. E. Setiamarga.
    Gene recruitments and dismissals in the argonaut genome provide insights into pelagic lifestyle adaptation and shell-like eggcase reacquisition.
    Genome Biology and Evolution, evac140, https://doi.org/10.1093/gbe/evac140

    Davin H. E. Setiamarga, Kazuki Hirota, Risa Ikai, Seiji Imoto, Noriyoshi Sato, Hiroki Ono, Yukinobu Isowa, Hiroshi Yonemitsu, Takenori Sasaki, Masa-aki Yoshida.
    Independent adoptions of a set of proteins found in the matrix of the mineralized shell-like eggcase of Argonaut octopuses.
    bioRxiv, https://doi.org/10.1101/2021.07.10.451900