Itsuki Kiyatake

TL;DR: A thorough genome annotation revealed Hox C genes previously hypothesized to have been lost, as well as distinct gene repertories of opsins and olfactory receptors that would be associated with adaptation to unique underwater niches, and provided insights on the molecular basis of adaptation to underwater lifestyle and the evolutionary origins of vertebrates.

TL;DR: It is shown that bamboo shark embryos exhibit relatively fast embryonic growth and are amenable to culture, key characteristics that enhance their experimental utility, and the present study is a foundation for cartilaginous fish research.

TL;DR: A new method of culturing shark fibroblasts and lymphocytes is presented, and the karyotypes of four carpet shark species are characterized, enabling whole genome analysis of these species and deepening the understanding of early vertebrate evolution at the molecular level.

TL;DR: The Squalomix consortium is expected to be solved through a combination of in-house cytological techniques including karyotyping of cultured cells, chromatin preparation for Hi-C data acquisition, and high fidelity long-read sequencing.

TL;DR: This work identified heteromorphic XX/XY sex chromosomes for the two latter species and demonstrated the first-ever fluorescence in situ hybridization of shark chromosomes prepared from cultured cells.