title: [Interspecies differences in the ovarian trophocyte precentromere heterochromatin structure and evolution of the malaria mosquito complex Anopheles maculipennis].
abstract: Studies on polytene chromosomes of ovarian trophocytes in malaria mosquitoes revealed significant variation of the structure of pericentromeric heterochromatin (PH). Variations in the number and size of pericentromeric alpha-heterochromatin blocks, puffing and interaction with the nuclear envelope of beta-heterochromatin, and the degree of asynapsis between pericentromeric regions of homologues were detected. Interspecific differences are characteristics of all three chromosomes of Anopheles maculipennis and seem to be directly associated with systemic mutations determining speciation.
authors.affiliation: Research Institute of Biology and Biophysics, Tomsk State University, Russia.
authors.forename: M V
authors.initials: MV
authors.lastname: Sharakhova
authors.forename: V N
authors.initials: VN
authors.lastname: Stegniĭ
authors.forename: O P
authors.initials: OP
authors.lastname: Braginets
mesh_terms: D000818:Animals; D000852:Anopheles / Q000235:genetics*; D005075:Biological Evolution; D002467:Cell Nucleus / Q000737:chemistry; D002503:Centromere; D005260:Female; D006570:Heterochromatin / Q000737:chemistry*; D010053:Ovary / Q000737:chemistry / Q000166:cytology; D011487:Protein Conformation; D013045:Species Specificity
chemical_list: D006570:Heterochromatin
vernacular_title: Mezhvedivovye razlichiia struktury pritsentromernogo geterokhromatina trofotsitov iaichnikov i évoliutsiia maliariĭnykh komarov kompleksa Anopheles maculipennis.