http://hdl.handle.net/10453/105 Thu, 23 May 2013 11:56:59 GMT 2013-05-23T11:56:59Z http://hdl.handle.net/10453/19079 Development of a SNP multiplex assay for the inference of biogeographical ancestry and pigmentation phenotype Castel Charmain; Piper Anita Angel Carracedo SNPs exhibiting strong associations with specific populations and/or pigmentation phenotypes have been identified in mitochondrial, Y chromosome and autosomal DNA. Ancestry and phenotype inferences gained from DNA may assist forensic investigations of unknown perpetrators or aid identification of missing persons and disaster victims. To test the predictive power of combining SNPs from all three DNA types, 21 coding region mitochondrial SNPs, 28 Y chromosome SNPs and 14 autosomal SNPs were selected and analysed in a hierarchical multiplex assay. Sat, 01 Jan 2011 00:00:00 GMT http://hdl.handle.net/10453/19079 2011-01-01T00:00:00Z http://hdl.handle.net/10453/16089 Are floodplain-wetland plant communities determined by seed bank composition or inundation periods? Webb Munique; Reid Mike; Thoms Martin; Capon Sam; Rayburg Scott; James Cassandra Rowan, J.S., Duck, R.W., Werritty, A. Vegetation zonation patterns are a common feature in flood plain¿ wetland complexes and are important to the biodiversity and functioning of such systems. The purpose of this paper is to identify links between water regime, seed bank and the establishment of zoned vegetation communities in a series of small distributary channels within the Narran Lakes flood plain¿ wetland complex, eastern Australia. Seed bank material from three distinct plant community zones within three distributary channels were collected and subjected to five inundation treatments over a period of 12 weeks to test the effects of location and inundation regime on the abundance of seedlings, species richness and species assemblages. The results of this study indicate that the water regime determines which species germinate and the seed bank influences the abundance of plants to emerge. This study provides insight into the implications of changing flooding regimes on plant community composition in flood plain¿wetland systems Sun, 01 Jan 2006 00:00:00 GMT http://hdl.handle.net/10453/16089 2006-01-01T00:00:00Z http://hdl.handle.net/10453/12613 Segmentation and tracking of individual Pseudomonas aeruginosa bacteria in dense populations of motile cells Vallotton Pascal; Sun Changmin; Wang Dadong; Ranganathan Prabhakar; Turnbull Lynne; Whitchurch Cynthia NA The dynamics of individual bacteria underlies the manifestation of complex multicellular behaviours such as biofilm development and colony expansion. High resolution movies of expanding bacterial colonies reveal intriguing patterns of cell motions. A quantitative understanding of the observed behaviour in relation to the bacteria¿s own motile apparatus and to hydrodynamic forces requires that bacteria be identified and tracked over time. This represents a demanding undertaking as their size is close to the diffraction limit; they are very close to each other; and a typical image may contain over a thousand cells. Here, we describe the approach that we have developed to segment individual bacteria and track them in high resolution phase contrast microscopy movies. We report that over 99% of nonoverlapping bacteria could be segmented correctly using mathematical morphology, and we present preliminary results that exploit this new capability. Thu, 01 Jan 2009 00:00:00 GMT http://hdl.handle.net/10453/12613 2009-01-01T00:00:00Z http://hdl.handle.net/10453/11879 SNPs associated with physical traits: A valuable tool for the inference of biogeographical ancestry Daniel Runa; Sanchez Juan; Nassif Najah; Hernandez Alexis; Walsh Simon Niels Morling Sixteen autosomal SNPs were selected to differentiate major populations in Australia. A SNP multiplex assay was developed for the inference of biogeographical ancestry. Tue, 01 Jan 2008 00:00:00 GMT http://hdl.handle.net/10453/11879 2008-01-01T00:00:00Z