Abstract
Simplicity is the key element of an inexpensive technique described that is superior in performance to previous methods. It can make it the rapid method of choice to obtain reasonable yields of purified primordial germ cells (PGCs) for immediate production of germline chimeric chickens with integrated foreign genes. After Ficoll centrifugation, the purity of PGCs from gonads was 80.9+/-0.08% (mechanical) compared with 86.1+/-0.19% (enzymatic). GFP gene and lacZ-transduced chicken gonadal primordial germ cells (gPGCs) examined 72h after transduction had a transfection efficiency of approximately 61% and approximately 64%, respectively. After 10 days of G418 selection, approximately 90 and 92% of pure gPGCs did not contain other cells following this Ficoll gradient centrifugation method of preparation.
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