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Constitutive heterochromatin in karyotypes of two Cicadidae species from Japan (Cicadoidea, Hemiptera)

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Perepelov E., Bugrov A. G., Maryanska-Nadachowska A.

Folia Biologica

2002

vol. 50

issue 3-4

217-219

Karyotypes of males of cicadas Tibicen bihamatus (Motschulski) and Platypleura kuroiwae Matsumura were studied using C-banding technique. In Tibicen bihamatus two types of C-band distribution were observed. Two chromosome pairs have C-bands at one of the chromosome ends, while in the other, including the sex chromosome, C-heterochromatin blocks occurred at both ends. Platypleura kuroiwae has a smaller amount of C-heterochromatin located as small subterminal blocks. The intercalar C-bands were seen in the early spermatogonial metaphase chromosomes.

C-banded karyotypes of some dragonfly species from Russia. II. The Families Cordulegasteridae, Corduliidae, and Gomphidae

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Perepelov E., Bugrov A., Warchalowska-Sliwa E.

Folia Biologica

2001

vol. 49

issue 3-4

175-178

The C-stained karyotypes of five species of three dragonfly families from Western Siberia and Kunashir Island have been analysed. Gomphus epophtalmus Sel., G. vulgatissimus (L.), Nihonogomphus ruptus (Sel. et Hag.) (Gomphidae), and Anotogaster sieboldii (Sel.) (Cordulegasteridae) showed usual character of C-heterochromatin distribution, all chromosomes have terminal C-bands. Somatochlora graeseri Sel. (Corduliidae) has unique for dragonflies type of terminal C-blocks on autosomes. Three pairs of autosomes have the very large heterochromatic blocks, other chromosomes, including the X, have no C-band.

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2 Folia Biologica

1 2002

1 2001

2 Perepelov E.

1 Bugrov A.

1 Bugrov A. G.

1 Maryanska-Nadachowska A.

1 Warchalowska-Sliwa E.

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Constitutive heterochromatin in karyotypes of two Cicadidae species from Japan (Cicadoidea, Hemiptera)

C-banded karyotypes of some dragonfly species from Russia. II. The Families Cordulegasteridae, Corduliidae, and Gomphidae