DnaSPDNASequencePolymorphismisasoftwarepackagefortheanalysisofnucleotidepolymorphismfromalignedDNAsequencedataDnaSPcanestimateseveralmeasuresofDNAsequencevariationwithinandbetweenpopulationsinnoncodingsynonymousornonsynonymoussitesorinvarioussortsofcodonpositionsaswellaslinkage