## Abstract Intrinsic primordial germ cells (PGCs) from stage 27 (5โdayโold) chick embryonic germinal ridges were cultured in vitro for a further 5 days, and shown to proliferate on stroma cells derived from the germinal ridge. To determine whether these cultured PGCs could colonize and contribute
PRODUCTION OF GERMLINE CHIMERIC CHICKENS BY TRANSFER OF CULTURED PRIMORDIAL GERM CELLS
โ Scribed by IL-KUK CHANG; DONG KEE JEONG; YEONG HO HONG; TAE SUB PARK; YANGHA KIM MOON; TADAO OHNO; JAE YONG HAN
- Book ID
- 102565767
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 144 KB
- Volume
- 21
- Category
- Article
- ISSN
- 1065-6995
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โฆ Synopsis
Primordial germ cells (PGCs) from stage 27 (5.5-day-old) Korean native ogol chicken embryonic germinal ridges were cultured in vitro for 5 days. As in in vivo culture, these cultured PGCs were expected to have already passed beyond the migration stage. Approximately 200 of these PGCs were transferred into 2.5-day-old white leghorn embryonic blood stream, and then the recipient embryos were incubated until hatching. The rate of hatching was 58.8% in the manipulated eggs. Six out of 60 recipients were identified as germline chimeric chickens by their feather colour. The frequency of germline transmission of donor PGCs was 1.3-3.1% regardless of sex. The stage 27 PGCs will be very useful for collecting large numbers of PGCs, handling of exogenous DNA transfection during culture, and for the production of desired transgenic chickens.
๐ SIMILAR VOLUMES
Gonadal primordial germ cells (gPGCs) were collected from gonadal anlage of 5day-old White Leghorn (WL) embryos. Collected gPGCs were suspended in freezing medium containing 10% dimethyl sulphoxide (DMSO). The cell-suspension was frozen at 1ยฐC/min until the temperature reached -80ยฐC; cells were then