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Testing the impact of calibration on molecular divergence times using a fossil-rich group: the case of Nothofagus (Fagales).
It is suggested that increased background research should be made at all stages of the calibration process to reduce errors wherever possible, from verifying the geochronological data on the fossils to critical reassessment of their phylogenetic position.
Australian biogeographical connections and the phylogeny of large genera in the plant family Myrtaceae
Aim To compare the phylogeny of the eucalypt and melaleuca groups with geological events and ages of fossils to discover the time frame of clade divergences.
Chloroplast genome analysis of Australian eucalypts--Eucalyptus, Corymbia, Angophora, Allosyncarpia and Stockwellia (Myrtaceae).
Phylogeny, major clades and infrageneric classification of Corymbia (Myrtaceae), based on nuclear ribosomal DNA and morphology
Phylogenetic relationships of sections and species within Corymbia (Myrtaceae), the bloodwood eucalypts, were evaluated by using combined analyses of nuclear rDNA (ETS + ITS) and morphological characters and molecular data provided resolution of relationships.
Comment on a new classification of the Eucalypts
Brooker’s classification of the eucalypts, which combines Angophora, Corymbiaand Eucalyptus into one genus, is contrary to phylogenetic evidence based on eight different data sets including…
Phylogeny of Eucalyptus and Angophora based on 5S rDNA spacer sequence data.
Alignment shows that, as in other plants, the tandemly repeated 5S rRNA genes are highly conserved while the noncoding intergenic spacers are variable, and Parsimony analysis showed Eucalyptus to be paraphyletic, with the bloodwoods being more closely related to Angophora than to the rest of Eucaliptus.
Historical biogeographical patterns in continental Australia: congruence among areas of endemism of two major clades of eucalypts
- P. Ladiges, C. Parra‐O., Adele K. Gibbs, F. Udovicic, G. Nelson, M. Bayly
- Environmental Science, GeographyCladistics : the international journal of the…
- 1 February 2011
The results show all arid and semi‐arid regions as related, suggestive of a historically cohesive interior biota rather than repeated colonizations of the interior from the periphery of the continent.
Ribosomal DNA pseudogenes are widespread in the eucalypt group (Myrtaceae): implications for phylogenetic analysis
Pseudogenes from the 18S−5.8S−26S cistron of nuclear ribosomal DNA are reported in the eucalypt group (Myrtaceae), which includes seven genera and at least six sequences used in previous phylogenetic studies are identified as pseudogenes, and a further 10 pseudagenes are newly sequenced here.
Molecular phylogeny and biogeography of Melaleuca, Callistemon and related genera (Myrtaceae)
To resolve the relationships of taxa within the Beaufortia suballiance (Myrtaceae), 72 ingroup taxa were analysed by parsimony methods and nrDNA sequence data from the 5S and ITS-1 ribosomal DNA spacer regions, showing that Melaleuca is polyphyletic.
Phylogeny and classification of Eucalyptus subgenus Eudesmia (Myrtaceae) based on nuclear ribosomal DNA, chloroplast DNA and morphology
The hypothesised phylogeny provides a framework for further analyses of biogeography and ecology, including functional traits.