Evolution and genetics of bighead and silver carps: Native population conservation versus invasive species control

Evolutionary Applications
Guoqing LuSi-Fa Li

Abstract

Bighead carp (Hypophthalmichthys nobilis) and silver carp (H. molitrix), collectively called bigheaded carps, are cyprinids native mainly to China and have been introduced to over 70 countries. Paleontological and molecular phylogenetic analyses demonstrate bighead and silver carps originated from the Yangtze-Huanghe River basins and modern populations may have derived from the secondary contact of geographically isolated fish during the last glacial events. Significant genetic differences are found among populations of native rivers (Yangtze, Pearl, and Amur) as well as introduced/invasive environments (Mississippi R., USA and Danube R., Hungary), suggesting genetic backgrounds and ecological selection may play a role in population differentiation. Population divergence of bighead carp or silver carp has occurred within their native rivers, whereas, within the Mississippi River Basin (MRB)-an introduced region, such genetic differentiation is likely taking place at least in silver carp. Interspecific hybridization between silver and bighead carps is rare within their native regions; however, extensive hybridization is observed in the MRB, which could be contributed by a shift to a more homogenous environment that lacks reprodu...Continue Reading

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Citations

Jul 21, 2020·Evolutionary Applications·Anne-Laure FerchaudMaren Wellenreuther
Aug 10, 2021·Journal of Applied Microbiology·Mingkun LuoZaijie Dong

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Methods Mentioned

BETA
electrophoresis
one hybrid

Software Mentioned

Migrate

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