Abstract
A revision of the main and alternative banding sequences in chromosome II (CD) has been made for all 14 species of the Chironomus plumosus (Linnaeus, 1758)group. A new version of mapping has been suggested for 10 out of 18 banding sequences of arm C and 12 out of 22 banding sequences of arm D. Mapping of 7 banding sequences has been done for the first time according to the Keyl-Devai system. Phylogenetic relationships of banding sequences of chromosome II have been discussed.
Highlights
The Chironomus plumosus (Linnaeus, 1758) group of sibling species is a unique object for the study of patterns in linear reorganization of the genome during speciation, as it consists of species with mainly wide geographic ranges with natural populations at different stages of divergence (Butler et al 1999; Gunderina et al 1999a, b; Kiknadze et al 2000; Golygina et al 2007)
A dendrogram of banding sequences constructed on the basis of published mapping is shown in Fig. 1a, where main banding sequences are written in bold and alternative banding sequences in italics
The most important changes should be made in mapping of banding sequences of Chironomus sp. prope agilis, Ch. balatonicus, Ch. muratensis, Ch. nudiventris, and Chironomus sp
Summary
The Chironomus plumosus (Linnaeus, 1758) group of sibling species is a unique object for the study of patterns in linear reorganization of the genome during speciation, as it consists of species with mainly wide geographic ranges with natural populations at different stages of divergence (Butler et al 1999; Gunderina et al 1999a, b; Kiknadze et al 2000; Golygina et al 2007). I. Kiknadze / Comparative Cytogenetics 6(3): 249–266 (2012)
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