TY  - JOUR
TI  - Generation of germ-line chimera zebrafish using primordial germ cells isolated from cultured blastomeres and cryopreserved embryoids  
AU  - Kawakami, Yutaka
AU  - Goto-Kazeto, Rie
AU  - Saito, Taiju
AU  - Fujimoto, Takafumi
AU  - Higaki, Shogo
AU  - Takahashi, Yoshiyuki
AU  - Arai, Katsutoshi
AU  - Yamaha, Etsuro
T2  - The International Journal of Developmental Biology
AB  - Primordial germ cells (PGCs) are the only cells in developing embryos with the potential to transmit genetic information to the next generation. In our previous study, a single PGC transplanted into a host differentiated into fertile gametes and produced germ-line chimeras of cyprinid fish, including zebrafish. In this study, we aimed to induce germ-line chimeras by transplanting donor PGCs from various sources (normal embryos at different stages, dissociated blastomeres, embryoids, or embryoids cryopreserved by vitrification) into host blastulae, and compare the migration rates of the PGCs towards the gonadal ridge. Isolated, cultured blastomeres not subject to mesodermal induction were able to differentiate into PGCs that retained their motility. Moreover, these PGCs successfully migrated towards the gonadal ridge of the host and formed viable gametes. Motility depended on developmental stage and culture duration: PGCs obtained at earlier developmental stages and with shorter cultivation periods showed an increased rate of migration to the gonadal ridge. Offspring were obtained from natural spawning between normal females and chimeric males. These results provide the basis for new methods of gene preservation in zebrafish.
PY  - 2010
DO  - 10.1387/ijdb.093059yk
VL  - 54
IS  - 10
SP  - 1493
EP  - 1501
J2  - Int. J. Dev. Biol.
LA  - en
SN  - 0214-6282
SN  - 1696-3547
UR  - https://ijdb.ehu.eus/article/093059yk
Y2  - 2024/12/04/10:00:05
ER  -