Embryos

Developmental characteristics of pectoralis muscle in Pekin duck embryos

L. H. Gu, Xu, T. S., Huang, W., Xie, M., Shi, W. B., Sun, S. D., and Hou, S. S., Developmental characteristics of pectoralis muscle in Pekin duck embryos, vol. 12, pp. 6733-6742, 2013.

To confirm the entire developmental process and transition point of embryonic Pekin duck pectoral muscle, and to investigate the association between pectoral muscle development and their regulating genes, anatomical and morphological analyses of embryonic Pekin duck skeletal muscles were performed, and the expression patterns of its regulating genes were investigated. The anatomical analysis revealed that body weight increased with age, while increases in pectoral muscle weight nearly ceased after the embryo was 20 days of hatching (E20).

Uses and limitations of two molecular cytogenetic techniques for the study of arrested embryos obtained through assisted reproduction technology

M. C. Muhlmann, Laudicina, A. O., Perandones, C., Bertolino, M. V., Marazzi, A., Quintans, C. J., Donaldson, M., Bozzo, W., and Pasqualini, S., Uses and limitations of two molecular cytogenetic techniques for the study of arrested embryos obtained through assisted reproduction technology, vol. 4, pp. 143-151, 2005.

We studied chromosomal abnormalities in arrested embryos produced by assisted reproductive technology with fluorescence in situ hybridization (FISH) and comparative genomic hybridization (CGH) in order to determine the best technique for evaluating chromosomal aneusomies to be implemented in different situations. We examined individual blastomeres from arrested embryos by FISH and arrested whole embryos by CGH. All of the 10 FISH-analyzed embryos gave results, while only 7 of the 30 embryos analyzed by CGH were usable.

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