Sharks and rays have the oldest vertebrate sex chromosome with unique sex determination mechanisms
（サメ・エイ類は独自の性決定機構を備えた脊椎動物最古の性染色体を持つ）
2025年07月
Proceedings of the National Academy of Sciences USA （PNAS） 122 (30) e2513676122 July 22, 2025
Taiki Niwa１,２, Yoshinobu Uno３,４, Yuta Ohishi３,５, Mitsutaka Kadota３, Naotaka Aburatani６, Itsuki Kiyatake７, Daiki Katooka８, Michikazu Yorozu９, Nobutaka Tsuzuki10, Atsushi Toyoda２, Wataru Takagi６, Masaru Nakamura11, Shigehiro Kuraku１,２,３
1 Department of Genetics, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies)
2 Molecular Life History Laboratory, Department of Genomics and Evolutionary Biology, National Institute of Genetics
3 Laboratory for Phyloinformatics, RIKEN Center for Biosystems Dynamics Research
4 Department of Natural Science, Graduate School of Technology, Industrial and Social Science, Tokushima University
5 Department of Biology, Graduate School of Science, Kobe University
6 Laboratory of Physiology, Atmosphere and Ocean Research Institute, The University of Tokyo
7 Osaka Aquarium Kaiyukan
8 Enoshima Aquarium
9 Maxell Aqua Park Shinagawa
10 Shimoda Aquarium
11 Okinawa Churashima Foundation Research Institute
［ Proceedings of the National Academy of Sciences USA （PNAS） 122 (30) e2513676122 ］
