Received date: 2009-09-29
Revised date: 2010-01-21
Online published: 2010-05-24
Animal transgenic technology is one of the fastest growing biotechnology in the 21st century. It is used to integrate foreign genes into the animal genome by genetic engineering technology so that foreign genes can be expressed and inherited to the offspring. The transgenic efficiency and precise control of gene expression are the key limiting factors on preparation of transgenic animals. A variety of transgenic techniques are available, each of which has its own advantages and disadvantages and still needs further study because of unresolved technical and safety issues. With the in-depth research, the transgenic technology will have broad application prospects in the fields of exploration of gene function, animal genetic improvement, bioreactor, animal disease models, organ transplantation and so on. This article reviews the recently devel-oped animal gene transfer techniques, including germline stem cell mediated method to improve the efficiency, gene tar-geting to improve the accuracy, RNA interference (RNAi)-mediated gene silencing technology, and the induced pluripotent stem cells (iPS) transgenic technology. The new transgenic techniques can provide a better platform for the study of trans-genic animals and promote the development of medical sciences, livestock production, and other fields.
SUN Zhen-Gong, MIAO Xiang-Yang, SHU Rui-Liang . New advances in animal transgenic technology[J]. Hereditas(Beijing), 2010 , 32(6) : 539 -547 . DOI: 10.3724/SP.J.1005.2010.00539
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