title: [Mitochondrial DNA variation in diploid and triploid forms of silver crucian carp Carassius auratus gibelio].
abstract: Variation of two mtDNA fragments amplified in polymerase chain reaction was compared by the RFLP method in a population of the sympatric bisexual (diploid) and gynogenetic (triploid) forms of silver crucian carp. The mtDNA haplotypes of all individuals differed in at least 2.5% of nucleotide substitutions and fall into two phylogroups. All gynogenetic individuals have haplotypes of a single phylogroup, whereas haplotypes of diploid fish belonged to both mtDNA phylogroups. This testifies to a possibility of transformation of gynogenetic individuals into a bisexual form, whereas the reverse process is either extremely rare or impossible.
authors.forename: Vl A
authors.initials: VA
authors.lastname: Brykov
authors.forename: O V
authors.initials: OV
authors.lastname: Apalikova
authors.forename: M G
authors.initials: MG
authors.lastname: Eliseĭkina
authors.forename: M Iu
authors.initials: MIu
authors.lastname: Kovalev
mesh_terms: D000818:Animals; D004272:DNA, Mitochondrial; D014644:Genetic Variation; D006054:Goldfish / Q000235:genetics*; D006238:Haploidy; D010802:Phylogeny; D011123:Polyploidy
chemical_list: D004272:DNA, Mitochondrial