Study of Gryllids of the subfamily Landrevinae (Orthoptera: Gryllidae) from Vietnam: karyology and patterns of sperm
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Karyotypes (the number, shape, C-bands, NORs, chiasma frequency) of four species of Landrevinae were studied. Three species are characterized by a karyotype of 2n male=19 - Duolandrevus (Eulandrevus) sonorus, D. (E.) dendrophilus and D. (E.) enatus while Vasilia vietnamensis showed 2n=17. Differences of karyotypes are connected with simple Robertsonian translocation in autosomes. Successive stages of spermatogenesis were analysed.
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E.Warchalowska-Sliwa, Department of Experimental Zoology, Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Slawkowska 17, 31-016 Krakow, Poland