title: The appearance of a different DNA sequence may decrease nucleotide diversity.
abstract: Nucleotide diversity may be decreased when a different DNA sequence type appears in a population. This undesirable property in a genetic diversity index is demonstrated by mathematical examples. The possibility of this phenomenon in natural populations is briefly discussed.
authors.affiliation: Department of Forestry, 126 Natural Resources Building, Michigan State University, East Lansing, MI 48824-1222, USA. shimatan@pilot.msu.edu
authors.forename: K
authors.initials: K
authors.lastname: Shimatani
mesh_terms: D004247:DNA / Q000235:genetics*; D005787:Gene Frequency; D014644:Genetic Variation / Q000235:genetics*; D008433:Mathematics; D008957:Models, Genetic; D009154:Mutation / Q000235:genetics; D009711:Nucleotides / Q000235:genetics*
chemical_list: D009711:Nucleotides; D004247:DNA