The pattern of variability in chloroplast DNA (cpDNA) of Eucalyptus globulus Labill. (Myrtaceae) was studied using 270 samples from southern Australia. Forty variable sequence characters were found, defining 105 haplotypes. Haplotypes were assigned to three major cpDNA clades based on their phylogeny. The pattern of cpDNA variation did not conform to subspecies boundaries; however, there was a strong geographic structure to the distribution of clades and haplotypes. One clade (JC) was geographically central and widespread and was found in 163 samples from Tasmania and continental Australia. Less-common clades occurred in more localised regions - southern (Js, 77 samples) and eastern (Jet, 12 samples). The distribution of the Jet and Js clades coincides with hypothesised glacial refugia in Tasmania, suggesting limited seed-mediated dispersal since deglaciation.

Item Type:	Refereed Article
Research Division:	Biological Sciences
Research Group:	Evolutionary biology
Research Field:	Plant and fungus systematics and taxonomy
Objective Division:	Expanding Knowledge
Objective Group:	Expanding knowledge
Objective Field:	Expanding knowledge in the environmental sciences
UTAS Author:	Freeman, JS (Dr Jules Freeman)
UTAS Author:	Jackson, HD (Mr Hamish Jackson)
UTAS Author:	Steane, DA (Dr Dorothy Steane)
UTAS Author:	McKinnon, GE (Dr Gay McKinnon)
UTAS Author:	Dutkowski, GW (Mr Greg Dutkowski)
UTAS Author:	Potts, BM (Professor Brad Potts)
UTAS Author:	Vaillancourt, RE (Professor Rene Vaillancourt)
ID Code:	23183
Year Published:	2001
Web of Science® Times Cited:	81
Deposited By:	Plant Science
Deposited On:	2001-08-01
Last Modified:	2011-08-03
Downloads:	0