Conference paper
Advances in the application of molecular markers to studies of eucalypt phylogeny and population genetics
IUFRO Tree Biotechnology Conference, 2007 (Ponta Delgada, Portugal, 03-Jun-2007–08-Jun-2007)
IUFRO
2007
Abstract
Molecular genetics is continuing to provide new insights into eucalypt phylogeny and population genetics. While sequence variation in specific genome regions such as ITS has successfully resolved many issues in higher level phylogeny in eucalypts, including the placement of several anomalous taxa, the resolution of lower level phylogenies has proven problematic. The power of a whole-genome approach to resolving such phylogenetic relationships has now been shown through the use of amplified fragment length polymorphisms to resolve relationships among Tasmanian taxa from a single Symphyomyrtus section. However, for the more closely related taxa, a population genetic approach has been necessary. A large-scale microsatellite study of the four intergrading taxa within the commercially important Eucalyptus globulus complex and their transition zones in southeastern Australia has indicated marked differences in population divergence within taxa and unexpected affinities of some morphological intermediates. Nuclear microsatellite markers and maternally inherited chloroplast markers have provided evidence for convergent evolution and insights into the fine-scale population structure and dynamics of local gene flow. Congruent patterns of chloroplast DNA variation in three widespread species have suggested several historical barriers to migration that appear to have broadly impacted on the eucalypt forest flora of southeastern Australia.
Details
- Title
- Advances in the application of molecular markers to studies of eucalypt phylogeny and population genetics
- Authors
- Brad M Potts (Author) - University of TasmaniaG E McKinnon (Author) - University of TasmaniaR Jones (Author) - University of TasmaniaT Jones (Author) - University of TasmaniaJ Marthick (Author) - University of TasmaniaS Foster (Author) - University of TasmaniaJules S Freeman (Author) - University of TasmaniaDorothy A Steane (Author) - University of TasmaniaR E Vaillancourt (Author) - University of Tasmania
- Conference details
- IUFRO Tree Biotechnology Conference, 2007 (Ponta Delgada, Portugal, 03-Jun-2007–08-Jun-2007)
- Publisher
- IUFRO
- Date published
- 2007
- Organisation Unit
- University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99450040502621
- Output Type
- Conference paper
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