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Research advances and future perspectives of genomics and genetic improvement in allotetraploid common carp

文献类型： 外文期刊

作者： Chen, Lin 1 ; Xu, Jian 3 ; Sun, Xiaowen 4 ; Xu, Peng 1 ;

作者机构： 1.Xiamen Univ, Coll Ocean & Earth Sci, Fujian Key Lab Genet & Breeding Marine Organisms, Xiamen, Peoples R China

2.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen, Peoples R China

3.Chinese Acad Fishery Sci, Ctr Appl Aquat Genom, Beijing, Peoples R China

4.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin, Peoples R China

关键词： allotetraploid; Cyprinus carpio; genetic improvement; genomics; germplasm innovation; selective breeding

期刊名称：REVIEWS IN AQUACULTURE （ 影响因子：10.592； 五年影响因子：10.455 ）

ISSN： 1753-5123

年卷期：

页码：

收录情况： SCI

摘要： Aquatic species have become an integral part of human culture. As an internationally important food fish species, the common carp Cyprinus carpio accounted for over 7% of global aquaculture production in 2020. In addition to serving as a food source, common carp varieties are used as ornamental fish and valued in recreational fisheries. The continuously updated reference genome of common carp has recently served as a foundation for both basic genetic studies and evolutionary studies. With the recent emphasis on the allotetraploid signature of common carp, researchers have begun to focus on how hybridization and polyploidization affect the successful speciation and advantageous behaviour of common carp. In this review, we survey current and emerging research topics on common carp, including genomic and genetic tools, germplasm resources, genetic diversity, genetic mechanism and improvement of economic traits, as well as multiple breeding technologies employed in common carp. We also provide an overview of recent trends in genetic studies and improvements in common carp and encourage researchers to monitor the allotetraploid signature of common carp. Understanding the genetic basis of economically important traits and the mechanisms of allopolyploidization in common carp will be important for genetic improvement and germplasm innovation in agronomically important fish species, although the road ahead will be challenging for this widely domesticated allotetraploid species.

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