Lee JH, Park JH, Lee SH, Park CS, Jin DI. Sexing using single blastomere derived from IVF bovine embryos by fluorescence in situ hybridization (FISH).
Theriogenology 2004;
62:1452-8. [PMID:
15451253 DOI:
10.1016/j.theriogenology.2004.02.012]
[Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2003] [Revised: 01/03/2004] [Accepted: 02/15/2004] [Indexed: 11/19/2022]
Abstract
Fluorescence in situ hybridization (FISH) is a sensitive technique for molecular diagnosis of chromosomes on single cells and can be applied to sex determination of embryos. The objective has been to develop an accurate and reliable bovine Y chromosome-specific DNA probe in order to sex biopsed blastomeres derived from IVF bovine embryos by FISH. Bovine Y chromosome-specific PCR product derived from BtY2 sequences was labeled with biotin-16-dUTP (BtY2-L1 probe), and FISH was performed on karyoplasts of biopsed blastomeres and matched demi-embryos. Our FISH signal was clearly detected in nuclei of blastomeres of male embryos. FISH analysis of bovine embryos gave high reliability (96%) between biopsied blastomeres and matched demi-embryos. These results indicated that the BtY2-L1 bovine Y chromosome-specific FISH probe was an effective probe for bovine embryo sexing, and the FISH technique of probe detection could improve the efficiency and reliability.
Collapse