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4 Folia Biologica

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Karyotypes and C-banding patterns of some Phaneropterinae katydids (Orthoptera, Tettigonioidea) with special attention to a post-reductional division of the neo-X and the neo-Y sex chromosomes in Isophya hemiptera

100%

Warchalowska-Sliwa E. , Bugrov A. G.

Folia Biologica

1998

tom 46

47-54

Karyotypes and C-banding patterns of four species belonging to three genera of the subfamily Phaneropterinae were studied. The basic karyotype of Isophya kalishevskii, Polysarcus zacharovi, and Poecilimon ukrainicus consists of 2n=31(XO) in the male. The chromosome number of Isophya hemiptera is 2n%=28+neo-X+neo-Y as a result of mutual tandem translocation between the originally acrocentric X-chromosome and acrocentric medium size autosome. Analysis of the meiotic behaviour of the neo-X and neo-Y demonstrated a post-reductional division of these chromosomes.

Karyotypes and C-banding patterns of Bradyporinae (Tettigoniidae, Orthoptera)

100%

Warchalowska-Sliwa E. , Burgov A. G.

tom 44

95-98

Karyotypes and C-heterochromatin distribution of Deracanthina deracanthoides, Deracanthella verrucosa and Zichya baranovi were studied. Differences in the chromosome numbers, their morphology, and the position of C-bands between species of Bradyporinae are discussed.

Karyotype characteristics of Orthoptera katydid (Ensifera, Tettigoniidae), and remarks on their evolution at different taxonomic levels

88%

Heller K. G. , Warchalowska-Sliwa E.

Folia Biologica

1998

tom 46

143-176

So far, only about 400 species, subspecies, and chromosome races of 15 subfamilies of Tettigoniidae have been studied karyologically, this constituting about 7% of all described species in this group. An attempt was made to establish the basic diploid chromosome numbers of Tettigoniidae and, considering chromosome number, morphology, and the sex determining mechanisms, to suggest how karyotype evolution in the particular subfamilies could have occurred.

Cytological and morphological differences between two species of the genus Tettigonia (Orthoptera, Tettigoniidae) from Korea

88%

Warchalowska-Sliwa E. , Kostia D. , Sliwa L.

tom 50

nr 1-2

23-28

Tettigonia ussuriana and T. dolichopoda maritima differ in the length of tegmina, details in venation, and in females in details of the subgenital plate. The two species of the genus Tettigonia have the same number and morphology of autosomes but a different morphology of the X chromosome: in T. ussuriana it is metacentric, whereas in T. dolichopoda maritima acrocentric. In both species, euchromatic zones and breaks of one or to chromatids during meiosis and mitosis in theXchromosome were observed. Additionally, B chromosomes were noted in most individuals of both species.