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Polytene chromosomes of Glyptotendipes glaucus Mg. from Kaliningrad. glaA1.1, glaB2.2, glaC1.1, glaD1.1, glaE1.1, glaF1.1, glaG1.1, symbols of genotypic combinations of band sequences in chromosomal arms; BR, Balbiani ring; N, nucleolar organizer. Arrows indicate centromeres.
Source publication
New data on chromosome polymorphism of one of the phytophilous species of chyronomids Glyptotendipes glaucus (Meigen, 1818) from five water bodies of Kaliningrad are presented. It is established that G. glaucus in the water bodies of Kaliningrad is characterized by an inversion type polymorphism. The level of natural inversion polymorphism for each...
Contexts in source publication
Context 1
... structure of the karyotype of natural popula- tions of G. glaucus from the studied water bodies of Kaliningrad corresponds to the previously described karyotype of this species [6,14,15]. However, as a result of the study of the karyotype of the Kaliningrad populations of G. glaucus, some special features were found (see Fig. 1). Thus, arm A contains one nucleo- lus (N 1 ) and arm E contains two nucleoli (N 1 and N 2 ). Chromosome G in the centromere region has one nucleolus (N) and three Balbiani rings (BR 1 , BR 2 , and BR 3 ) along the entire chromosome. Arms C and F also contain puffs: two strongly pronounced puffs (P 1 and P 2 ) in arm C and one ...
Context 2
... as a result of the study of the karyotype of the Kaliningrad populations of G. glaucus, some special features were found (see Fig. 1). Thus, arm A contains one nucleo- lus (N 1 ) and arm E contains two nucleoli (N 1 and N 2 ). Chromosome G in the centromere region has one nucleolus (N) and three Balbiani rings (BR 1 , BR 2 , and BR 3 ) along the entire chromosome. ...
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