GENETIC-VARIATION IN THE SPINNING GUM, EUCALYPTUS-PERRINIANA F-MUELL EX RODWAY
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posted on 2025-01-15, 01:04 authored by Robert Wiltshire, James ReidJames ReidTwo Tasmanian populations of E. perriniana were examined to determine the extent of morphological variation between two gene pools that have been isolated for perhaps thousands of years. Surprisingly few differences were noted despite small population sizes, high levels of disturbance and high levels of hybridisation with E. rodwayi. When compared to mainland E. perriniana, large genotypic differences were noted: e.g. mainland E. perriniana seeds required stratification whereas Tasmanian seeds did not. The growth rates, leaf shape and colour also differed markedly but reproductive characters did not. These differences are possibly the products of differing selective pressures associated with altitudinal differences rather than random genetic drift or introgressive hybridisation. Developmental abnormalities were noted which seem to indicate that the distinctive connate form of the juvenile leaves is under relatively simple control mechanisms. © 1987, CSIRO. All rights reserved.
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Publication title
Australian Journal of BotanyVolume
35Issue
1Article number
1Number
1Pagination
33-47:15ISSN
0067-1924Department/School
Biological SciencesPublisher
CSIRO PUBLISHINGPublication status
- Published
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BM Potts. Copyright Copyright 1987 CSIROUsage metrics
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