title: Karyological investigations of Caryophyllaeus laticeps (Pallas, 1781) (Cestoda: Caryophyllidea).
abstract: Mitotic and meiotic chromosomes of Caryophyllaeus laticeps (Pallas) from Rybinsk reservoir were studied using air-drying techniques. It was established that the diploid set contains 20 metacentric chromosomes. The chromosomes are large--their mean absolute length ranges from 3.00 to 12.90 microns. The last pair of small homologues comprises only 3.4% of the total length of the complement. One specimen of C. laticeps with 2n = 21 (trisomic after the last pair of chromosomes) and one triploid specimen with 3n = 31 is described. Data on the comparative karyology of caryophyllids are discussed.
authors.affiliation: Institute of Ecology, Lithuanian Academy of Sciences, Vilnius, Russia.
authors.forename: R
authors.initials: R
authors.lastname: Petkeviciute
authors.forename: B I
authors.initials: BI
authors.lastname: Kuperman
mesh_terms: D000818:Animals; D002589:Cestoda / Q000235:genetics*; D002590:Cestode Infections / Q000469:parasitology / Q000662:veterinary*; D002875:Chromosomes; D003530:Cyprinidae / Q000469:parasitology*; D005393:Fish Diseases / Q000469:parasitology*; D007620:Karyometry; D008540:Meiosis; D008677:Metaphase; D008938:Mitosis; D011003:Ploidies