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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 27, No. 5, 2006, pp. 533-540
Bioline Code: zr06076
Full paper language: Chinese
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 27, No. 5, 2006, pp. 533-540

 en Advancements in Genetic Linkage Maps and Quantitative Trait Locations of Aquatic Farming Animals
CHANG Yu-mei, SUN Xiao-wen


Many countries have launched genomic studies for aquatic farming animals since the Agriculture Ministry of America initiated genomic studies for five kinds of aquatic farming animals in 1997. At the end of 2005, genetic linkage maps of approximately 17 briny or limnetic farming animals have been published. Of these 17 species, the rainbow trout and the Atlantic salmon have high-density linkage maps with over 1 000 markers; the tilapia, the channel catfish, the black tiger shrimp, the Japanese flounder and the European sea bass have middle-density linkage maps with 400-1 000 markers; the remaining 10 species, including the Thailand walking catfish, the Chinese Zhikong scallop, the common carp, the Japanese yellowtail amberjack and the American oyster, have low-density linkage maps with less than 400 markers. The framework and development of genetic linkage maps of aquatic farming animals facilitated QTL mapping associated with interesting economic traits, such as growth, resistance and development. However, QTL mapping was only studied preliminarily in a few species with middle or high density linkage maps, such as salmonids (the rainbow trout, the Atlantic salmon and the Arctic char), the tilapia, the channel catfish and the Japanese flounder. Genetic linkage maps with higher resolution and fine QTLs mapping are the keys to implementing genetic technology in interesting economic traits and also have the power to successfully carry out molecular marker or gene assistant selection breeding in aquatic farming animals.

Aquatic model animals; Aquatic farming animals; Genetic linkage map; QTL mapping

© Copyright 2006 Kunming Institute of Zoology, the Chinese Academy of Sciences
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