Pattern of genetic differentiation in two Isophya species (Orthoptera: Tettigonoidea) in north-east Hungary

Katalin Pecsenye, Edit Vadkerti, Z. Varga

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Allozyme polymorphism was studied in two populations of Isophya kraussi and Isophya stysi. Both species are flightless and have low dispersal ability. As a consequence, we expected high level of genetic differentiation among their local populations. Samples were collected in three regions of Hungary. Enzyme polymorphism was investigated at 10 loci (Aldox, Est, Got, α Gpdh, Hk, Idh, Mdh, Me, Pgi and Pgm) in both species. High levels of polymorphism were detected in all samples. α Gpdh proved to be diagnostic as there were no common alleles in the two species. At four further loci (Got, Hk, Mdh and Me), the two species had one common allele together with one or more differentiating alleles. We detected high FIT values implying a high level of genetic variation. The positive FIS values suggested a tendency of heterozygote deficiency in both species. The highly significant overall FST values indicated clear genetic differentiation among the local populations. Thus our results confirmed the taxonomic status of these two species. The dendrogram constructed on the basis of Nei's genetic distances and the results of the PCA analyses fully confirmed those obtained by F-statistics.

Original languageEnglish
Pages (from-to)207-213
Number of pages7
JournalJournal of Insect Conservation
Volume7
Issue number4
DOIs
Publication statusPublished - Dec 2003

Fingerprint

Orthoptera
Hungary
genetic differentiation
alleles
genetic variation
genetic polymorphism
enzyme polymorphism
allele
loci
polymorphism
allozymes
genetic distance
heterozygosity
statistics
sampling
allozyme
enzyme

Keywords

  • Enzyme polymorphism
  • Genetic differentiation
  • Hungary
  • Isophya

ASJC Scopus subject areas

  • Ecology
  • Animal Science and Zoology
  • Nature and Landscape Conservation

Cite this

Pattern of genetic differentiation in two Isophya species (Orthoptera : Tettigonoidea) in north-east Hungary. / Pecsenye, Katalin; Vadkerti, Edit; Varga, Z.

In: Journal of Insect Conservation, Vol. 7, No. 4, 12.2003, p. 207-213.

Research output: Contribution to journalArticle

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