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BOR - Papers in Press, published online ahead of print August 6, 2008.
Biol Reprod 2008, 10.1095/biolreprod.108.069989
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BIOLOGY OF REPRODUCTION 79, 931–937 (2008)
DOI: 10.1095/biolreprod.108.069989
© 2008 by the Society for the Study of Reproduction, Inc.

Reproduction of Wild Birds via Interspecies Germ Cell Transplantation1

Seok Jin Kang , Jin Won Choi , Sun Young Kim , Kyung Je Park , Tae Min Kim , Young Mok Lee , Heebal Kim , Jeong Mook Lim , and Jae Yong Han  2

Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea

ABSTRACT

The present study was conducted to apply an interspecies germ cell transfer technique to wild bird reproduction. Pheasant (Phasianus colchicus) primordial germ cells (PGCs) retrieved from the gonads of 7-day-old embryos were transferred to the bloodstream of 2.5-day-old chicken (Gallus gallus) embryos. Pheasant-to-chicken germline chimeras hatched from the recipient embryos, and 10 pheasants were derived from testcross reproduction of the male chimeras with female pheasants. Gonadal migration of the transferred PGCs, their involvement in spermatogenesis, and production of chimeric semen were confirmed. The phenotype of pheasant progenies derived from the interspecies transfer was identical to that of wild pheasants. The average efficiency of reproduction estimated from the percentage of pheasants to total progenies was 17.5%. In conclusion, interspecies germ cell transfer into a developing embryo can be used for wild bird reproduction, and this reproductive technology may be applicable in conserving endangered bird species..

assisted reproductive technology, chicken, developmental biology, gamete biology, interspecies germ cell transfer, pheasant, primordial germ cell, seasonal reproduction, spermatogenesis, wild bird conservation

FOOTNOTES

1Supported by a graduate fellowship from the Brain Korea 21 project of the Korean Ministry of Education.

Correspondence: 2Jae Yong Han, Laboratory of Animal Genetic Engineering, Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Korea. FAX: 82 2 874 4811; e-mail: jaehan{at}snu.ac.kr






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Copyright © 2008 by the Society for the Study of Reproduction.