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Maternal inheritance of the chloroplast genome in Eucalyptus globulus and interspecific hybrids


McKinnon, GE and Vaillancourt, RE and Tilyard, PA and Potts, BM, Maternal inheritance of the chloroplast genome in Eucalyptus globulus and interspecific hybrids, Genome, 44, (5) pp. 831-835. ISSN 0831-2796 (2001) [Refereed Article]

DOI: doi:10.1139/gen-44-5-831


The utility of chloroplast DNA (cpDNA) in Eucalyptus, either as a molecular marker for genetic studies or as a potential vehicle for genetic manipulation, is based on knowledge of its mode of inheritance. Chloroplast inheritance in angiosperms can vary among and within species, and anomalous inheritance has been reported in some interspecific-hybrid combinations. In Eucalyptus, abnormalities of pollen-tube growth occur in a number of interspecific-hybrid combinations, and this might increase the likelihood of anomalous chloroplast transmission. We used a rapid PCR technique to determine chloroplast heritability in 425 progeny of Eucalyptus, comprising 194 progeny of the premier pulpwood species E. globulus and 231 interspecific hybrids between E. globulus and E. nitens (F1, F2, and backcrosses). At this sampling intensity, no pollen-mediated transmission of cpDNA was found in any of the 40 families tested. The results are discussed with reference to chloroplast engineering and the use of cpDNA as a seed-specific marker in phylogeographic studies of Eucalyptus.

Item Details

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:McKinnon, GE (Dr Gay McKinnon)
UTAS Author:Vaillancourt, RE (Professor Rene Vaillancourt)
UTAS Author:Tilyard, PA (Mr Paul Tilyard)
UTAS Author:Potts, BM (Professor Brad Potts)
ID Code:22497
Year Published:2001
Web of Science® Times Cited:42
Deposited By:Plant Science
Deposited On:2001-08-01
Last Modified:2009-07-31

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