Genetic investigations on Ips typographus populations in authochthonus and allochthonous areas.
Abstract
Final Report by Lakatos: The genetic structure of Ips typographus (L.) populations from autochthonous and allochthonous Picea abies ((L.) Karsten) stands in West-Hungary was investigated using isozyme electrophoresis. 38 % of the investigated loci were polymorphic. As our study showed, the genetic structure of the I. typographus populations was homogenous. Differentiation among populations were estimated using heterozygosity calculations, FST statistics and by the estimation of gene flow. The FST statistics indicates that 1.1% of the variance is due genetic differentiation among populations and 98.9% of the variance is within the population. The inbreeding coefficients (FIS AND FIT) is significantly higher in the I. typographus populations from allochthonous spruce stands than from autochthonous ones. The estimation of gene flow after Slatkin's graphical method (1978) differed between autochthonous and allochthonous spruce stands. The allochthonous regions of P. abies may be geographical restricted for I. typographus because the diffuse presence of the host plant, which appear also in the genetic structure of the beetle populations. Theory is presented for the genetic process influencing the physiological population structure depending on the beetle migration. The possible role of genetic dissimilarities in the autochthonous and allochthonous stands according the bark beetle outbreaks are discussed.
- Ips typographus
Publikationen
Ecological genetics of European Ips species.
Autoren: Stauffer, C. Jahr: 1999
Originalbeitrag in Sammelwerk
Phylogeographical analysis of European Ips typographus (L.) (Col., Scolytidae) populations with special concern on the border zones.
Autoren: Lakatos, F., Stauffer, C., Blecha, R. Jahr: 1996
PUBLIZIERTER Beitrag für wissenschaftliche Veranstaltung
Genetic and ecological aspects of scolytid infestations in native and non-autochtonous Picea abies stands.
Autoren: Lakatos, F., Stauffer, C. Jahr: 1995
PUBLIZIERTER Beitrag für wissenschaftliche Veranstaltung
Molecular and ethological analysis of Ips typographus populations (Coleoptera, Scolytidae).
Autoren: Hösle, P., Führer, E., Stauffer, C. Jahr: 2000
PUBLIZIERTER Beitrag für wissenschaftliche Veranstaltung
Mitarbeiter*innen
Christian Stauffer
Ao.Univ.Prof. Dipl.-Ing. Dr.nat.techn. Christian Stauffer
christian.stauffer@boku.ac.at
Tel: +43 1 47654-91631
Projektleiter*in
01.01.1995 - 31.12.1997
BOKU Partner
Externe Partner
University Sopron
keiner
Koordinator