DNA marker technologies and their applications in aquaculture genetics
نویسندگان
چکیده
The development of DNA-based genetic markers has had a revolutionary impact on animal genetics. With DNA markers, it is theoretically possible to observe and exploit genetic variation in the entire genome. Popular genetic markers in the aquaculture community include allozymes, mitochondrial DNA, RFLP, RAPD, AFLP, microsatellite, SNP, and EST markers. The application of DNA markers has allowed rapid progress in aquaculture investigations of genetic variability and inbreeding, parentage assignments, species and strain identification, and the construction of high-resolution genetic linkage maps for aquaculture species. Well-designed studies using these genetic markers will undoubtedly accelerate identification of genes involved in quantitative trait loci (QTL) for marker-assisted selection. In this review, the principles, potential power, requirements, advantages, and disadvantages of the various marker types are discussed, along with their applications in a variety of aquaculture studies. Included are discussions on how to efficiently exploit research progress made from the Human Genome Project and from other model species such as zebrafish for the benefit of aquaculture genomics and aquaculture genetics research. D 2004 Elsevier B.V. All rights reserved.
منابع مشابه
40045 FM i-xvi
DNA marker technologies have revolutionized the way aquaculture genetics research is being conducted (Liu and Cordes 2004). Early on, most applications of molecular genetics in aquaculture relied on the estimation of demographic parameters of diversity and differentiation that were derived from averaging the genetic composition over populations or stocks. It has been recognized for nearly 25 ye...
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