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Journal
1998 | 46 | 137-142
Article title

C-banded karyotypes of some dragonfly species from Russia.

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Abstracts
EN
The C-stained karyotypes of Calopteryx splendens (Harris, 1782) (2n%=25, X0, m), Aeschna viridis Eversmann, 1836 (2n%=26, neo-XY, m), Ophiogomphus cecilia (Fourcroy, 1785) (2n%=23, X0), Cordulia aenea (Linnaeus, 1758) (2n%=25, X0), Libellula depressa Linnaeus, 1758 (2n%=25, X0, m), Libellula quadrimaculata Linnaeus, 1758 (2n%=25, X0, m), Orthetrum albistylum Selys, 1848 (2n%=25, X0, m), Orthetrum brunneum (Fonscolombe, 1837) (2n%=25, X0, m) and Sympetrum pedemontanum (Allioni, 1766) (2n%=25, X0, m) from Siberia and the Northern Caucasus have been analysed. All the studied species possess C-bands at both the ends of autosomes, all Libellulinae have an intercalar C-block at largest autosome. C. aenea has the subterminal blocks near the terminal ones. The X is heterochromatic for its entire length in vast majority of species, the original X-part of the neo-XY chromosome in Ae. viridis is also entirely heterochromatic. L. depressa and C. splendens possess the euchromatic X with large terminal C-blocks.
References
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E. A. Perepelov, Novosibirsk State University, Department of Natural Sciences, 2 Pirogov St., 630090 Novosibirsk and Institute of Systematics and Ecology of Animals, Siberian Branch of Russian Academy of Sciences, 630091 Novosibirsk, Russia. E-mail:
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bwmeta1.element.element-from-psjc-eb9a26ea-66cb-3e67-94ed-7adc6d0fb863
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