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Characterisation of microsatellite markers for the rare and critically endangered Banksia brownii (Proteaceae)

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Abstract

Banksia brownii is a critically endangered small endemic tree restricted to the Stirling Range and Albany area of Western Australia. A genomic library was constructed and novel polymorphic microsatellite markers developed to allow studies of genetic structure, mating systems and gene flow in B. brownii. Markers were assessed in individuals from across the species range and polymorphism further investigated for 12 selected markers in 26 individuals from the Toolbrunup Stirling Range population. Three loci showed significant departure from Hardy–Weinberg equilibrium (P < 0.01) and two of these showed evidence of null alleles. None of the two locus combinations showed evidence of linkage disequilibrium. Levels of polymorphism were moderate in the Toolbrunup population with the number of alleles per locus ranging from two to nine. Observed heterozygosity ranged from 0.200 to 0.957 and expected heterozygosity from 0.308 to 0.849.

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Acknowledgments

We acknowledge funding for this project from the Department of Environment and Conservation Landscope Visa card project. We also thank Bronwyn MacDonald for assistance in the laboratory and Margaret Byrne and Maggie Hankinson for technical advice.

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Authors and Affiliations

  1. Science Division, Department of Environment and Conservation, Locked Bag 104, Bentley Delivery Centre, WA, 6984, Australia

    Shelley L. McArthur & David J. Coates

Authors
  1. Shelley L. McArthur
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  2. David J. Coates
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Correspondence to David J. Coates.

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McArthur, S.L., Coates, D.J. Characterisation of microsatellite markers for the rare and critically endangered Banksia brownii (Proteaceae). Conservation Genet Resour 2 (Suppl 1), 177–179 (2010). https://doi.org/10.1007/s12686-009-9125-5

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  • DOI: https://doi.org/10.1007/s12686-009-9125-5

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