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Variation in the Eucalyptus gunnii-archeri Complex. III. reciprocal transplant trials

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Potts, BM (1985) Variation in the Eucalyptus gunnii-archeri Complex. III. reciprocal transplant trials. Australian Journal of Botany, 33 (6). pp. 687-704. ISSN 0067-1924

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Abstract

Two multicharacter clines in the more or less continuous stands of Eucalyptus gunnii-archeri on the Central Plateau, Tasmania, are genetically based and appear to parallel independent habitat gradients. Results from experimental gardens established near the extremes of each cline suggest that these clines are at least partly maintained by spatially varying selective forces. Spatial variation in population fitness could be partly attributed to a differential response to drought, frost and insect predation. Most characters associated with extension growth (e.g. height, internode length, leaf size) exhibited marked phenotypic plasticity. In contrast, several characters of taxonomic importance in the complex, and which vary markedly between populations (e.g. seedling leaf shape, glaucousness), exhibited little environmental modification. The ontogenetic pattern varied between populations and, for many charac- ters, the direction of environmental modification was the same as the direction of genetic differentiation.

Item Type: Article
Journal or Publication Title: Australian Journal of Botany
Page Range: pp. 687-704
ISSN: 0067-1924
Identification Number - DOI: 10.1071/BT9850687
Additional Information: BM Potts. Copyright © 1985 CSIRO
Date Deposited: 23 Sep 2008 03:07
Last Modified: 18 Nov 2014 03:49
URI: http://eprints.utas.edu.au/id/eprint/7461
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