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Gametes of semelparous salmon are repeatedly produced by surrogate rainbow trout.
Yoshizaki, Goro; Fujihara, Ryo; Namura, Shun; Kanzaka, Koji; Kamiya, Kenji; Terasawa, Madoka; Shimamori, Shotaro; Moriya, Natsuko; Miwa, Misako; Hayashi, Makoto.
Affiliation
  • Yoshizaki G; Department of Marine Biosciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan.
  • Fujihara R; Institute for Reproductive Biotechnology for Aquatic Species (IRBAS), Tokyo University of Marine Science and Technology, 4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan.
  • Namura S; Department of Marine Biosciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan.
  • Kanzaka K; Department of Marine Biosciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan.
  • Kamiya K; Department of Marine Biosciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan.
  • Terasawa M; Department of Marine Biosciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan.
  • Shimamori S; Department of Marine Biosciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan.
  • Moriya N; Department of Marine Biosciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan.
  • Miwa M; Department of Marine Biosciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan.
  • Hayashi M; Department of Marine Biosciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan Minato-ku, Tokyo 108-8477, Japan.
Sci Adv ; 10(21): eadm8713, 2024 May 24.
Article in En | MEDLINE | ID: mdl-38787947
ABSTRACT
Most Pacific salmon species grow in the ocean, return to their native rivers to reproduce, and then die (semelparous type). However, rainbow trout survive after spawning and reproduce repeatedly until the end of their lives (iteroparous type). Little is known about how germline stem cells behave during gametogenesis in the two types of Pacific salmon. In this study, we show that all germline stem cells disappear after the first gametogenesis in Chinook and Kokanee salmon, whereas germline stem cells are maintained in rainbow trout. However, the germline stem cells of Chinook and Kokanee salmon transplanted into rainbow trout survive even after their spawning seasons and supply salmon gametes for multiple years. These results indicate that the behavior of the germline stem cells is mainly regulated by the somatic environment.
Subject(s)

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Salmon / Oncorhynchus mykiss Limits: Animals Language: En Journal: Sci Adv / Sci. Adv / Science advances Year: 2024 Document type: Article Affiliation country: Country of publication:

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Salmon / Oncorhynchus mykiss Limits: Animals Language: En Journal: Sci Adv / Sci. Adv / Science advances Year: 2024 Document type: Article Affiliation country: Country of publication: