Isozyme Variation Among Mountain Pine Beetle ( Dendroctonus ponderosae ) Populations in the Pacific Northwest
- 1 October 1979
- journal article
- research article
- Published by Oxford University Press (OUP) in Environmental Entomology
- Vol. 8 (5) , 889-893
- https://doi.org/10.1093/ee/8.5.889
Abstract
To examine genetic variation among mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Scolytidae), populations in the Pacific Northwest, beetles from 6 localities were assayed for isozyme variation using starch gel electrophoresis. Greater genetic differences were observed among males in many samples than among the females. A cline in gene frequencies at the aspartate aminotransferase locus corresponded to north-south geographic distribution of beetle populations in Idaho. Similarity coefficients calculated between all possible pairs of populations indicated the presence of 2 major population units. The largest differences between populations appear to be attributable to long-term geographic isolation.This publication has 1 reference indexed in Scilit:
- Floristic Plant Geography of Eastern Washington and Northern IdahoJournal of Biogeography, 1975