%0 Journal Article
%T Geneticdiversityanddifferentiationofmasusalmon(Oncorhynchusmasoumasou)betweenandwithinculturedpopulationsinferredfrommicrosatelliteDNAanalysis
%J 动物学研究
%P 33-39
%D 2012
%R 10.3724/SP.J.1141.2012.E03-04E33
%X Masusalmon,Oncorhynchusmasoumasou,isoneofthemostvaluablefisheryspeciesthathasbeenintroducedtoChina,thoughtodatenostudiesonthegeneticdiversityandgeneticrelationshipamonghatcherypopulationshasbeenperformedwithmolecularmarkers.Weundertooksuchastudyandsampled120individualsfromthreehatcherystocksandanalyzed20microsatelliteloci.Alllociwerepolymorphicandatotalof91allelesweredetected.Arelativelylowlevelofgeneticdiversitywasrevealedwitheffectivenumberofalleleof3.1094,3.3299and3.1894andexpectedheterozygosityof0.6600,0.6648and0.6638inthethreestocks,respectively.DeviationsfromHardy-Weinbergequilibriumwerefoundduetoheterozygotedeficit.Accordingly,evidenceofgeneticbottleneckswerefoundinthethreestocks.Anindividualassignmenttestdemonstratedthat85%ofindividualswerecorrectlyassignedintotheiroriginalstocks.PairwiseFstrevealedthatsignificantdifferentiationoccurredbetweenthesethreestocks.Theresultsofthestudyindicatedthatdisequilibriumofgeneticstructureanddifferentiationhasoccurredinallthreestocks.ThisinformationcollectivelyprovidesabasisformeasurestoavoidoflossofgeneticdiversityandintrogressioninChineseaquaculture.
%K Oncorhynchusmasoumasou
%K Microsatellite
%K Geneticdiversity
%K Geneticdifferentiation
%U http://www.zoores.ac.cn/CN/abstract/abstract3205.shtml