title: [Karyotype and karyofund of chironomids Polypedilum (Pentapedilum) sordens (Diptera, Chironomidae)].
abstract: Karyotypes and karyofund of chironomids P. Polypedilum (Pentapedilum) sordens (Van der Wulp, 1874) from four water bodies of Saratov region have been analysed. 2n = 6, I (GAB) > II (CD) > III (EF). A cytophotochart of polytene chromosomes of this species was composed, and discovered inversions were identified on its base. The level of inversion polymorphism is high. There are 18 chromosome sequences in the karyofund. The frequency of heterozygote inversions is 1.6-2.5 per specimen. On the base of this cytochart it is possible to produce chromosome charts of other species of subgenus Pentapedilum.
authors.forename: S I
authors.initials: SI
authors.lastname: Belianina
authors.forename: N A
authors.initials: NA
authors.lastname: Durnova
mesh_terms: D000818:Animals; D002683:Chironomidae / Q000235:genetics*; D002875:Chromosomes / Q000235:genetics; D005618:Fresh Water; D006579:Heterozygote; D007621:Karyotyping; D011110:Polymorphism, Genetic; D012426:Russia