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Title: High outcrossing and random pollen dispersal in a planted stand of 'Acacia saligna' subsp. 'saligna' revealed by paternity analysis using microsatellites
Contributor(s): Millar, MA (author); Byrne, M (author); Nuberg, I (author); Sedgley, Margaret  (author)
Publication Date: 2008
DOI: 10.1007/s11295-007-0115-z
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Abstract: The mating system, patterns of pollen mediated gene flow and levels of genetic contamination were investigated in a planted stand of 'Acacia saligna' subsp. 'saligna' via paternity analysis using microsatellite markers. High levels of outcrossing were detected within the stand (tm=0.98), and the average pollen dispersal distance was 37 m with the majority of progeny sired by paternal trees within a 50-m neighbourhood of the maternal tree. Genetic contamination from the natural background population of A. 'saligna' subsp. 'lindleyi' was detected in 14% of the progeny of A. 'saligna' subsp. 'saligna' and varied among maternal trees. Long distance inter-subspecific pollen dispersal was detected for distances of over 1,500 m. The results provide information for use in the breeding and domestication programme aimed at developing A. 'saligna' as an agroforestry crop for the low rainfall areas of southern Australia.
Publication Type: Journal Article
Source of Publication: Tree Genetics and Genomes, 4(3), p. 367-377
Publisher: Springer
Place of Publication: Germany
ISSN: 1614-2950
Field of Research (FOR): 070501 Agroforestry
Socio-Economic Outcome Codes: 820103 Integration of Farm and Forestry
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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School of Science and Technology

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