Rose Andrew
Post-Doctoral Fellow
roselorien(at)gmail.com

https://sites.google.com/site/roseandrewresearch/home

My postdoc with Loren Rieseberg is on the interface between local adaptation and speciation in sunflowers. Two common and widespread annual sunflower species, Helianthus annuus and H. petiolaris, have given rise to three stable diploid hybrid species. Hybridisation is thought to be an important source of the phenotypic novelty that allows the hybrid species to occupy extreme environments, such as active sand dunes. However, H. petiolaris at Great Sand Dunes has colonised the dune field apparently without genetic contributions from H. annuus. This is an exciting population as it represents an intraspecific case of dune adaptation and a striking example of divergence with gene flow. I am using landscape genetics, population genomics and ecological experiments to understand the effect of gene flow on genetic and phenotypic divergence. For this project we are now using restriction-associated DNA (RAD) sequencing, an Illumina-based approach to SNP discovery and detection that is ideally suited for population genomics and genetic mapping. Seed ecology is extremely important in this system and we are preforming field and greenhouse experiments to elucidate the significance of this trait for dune plants.

Publications

Manuscripts in preparation or submitted

Andrew RL, Fitzpatrick C and Rieseberg LH (2010) Parallel evolution of seed size in dune-adaptated annual sunflowers. In prep.

Andrew RL, M King and LR Rieseberg, Gene flow and adaptation in a narrow edaphic ecomorph: a landscape perspective on sand dune sunflowers. In prep.

Andrew RL, R Godfrey and LR Rieseberg, Local adaptation of morphology and flowering time in sand dune sunflowers.  In prep.

Carlon, DB, Budd AF, Lippe C and Andrew RL (2010) The quantitative genetics of incipient speciation: heritability and genetic correlations of skeletal traits in populations of diverging Favia fragum ecomorphs. In review.

Published

Stern, RF, Horak A, Andrew RL, Coffroth M-A, Andersen RA, Küpper FC, Jameson I et al. 2010. Environmental barcoding reveals massive dinoflagellate diversity in marine environments. PLoS ONE 5:e13991.

Andrew RL, IR Wallis, CE Harwood and WJ Foley (2010) Genetic and environmental contributions to variation and population divergence in a broad-spectrum foliar defence of Eucalyptus tricarpa. Annals of Botany 105:707-717.

Ebert D and RL Andrew (2009) Rhodopsin population genetics and local adaptation: variable dim-light vision in sand gobies is illuminated. Molecular Ecology 18: 4140-4142.

Andrew RL, Wallis I, Harwood C, Henson M, Foley W. 2007. Heritable variation in the foliar secondary metabolite sideroxylonal in Eucalyptus confers cross-resistance to herbivores. Oecologia 153(4): 891-901.

Andrew RL, Peakall R, Wallis IR, Foley W. 2007. Spatial distribution of defense chemicals and markers: Implications for the maintenance of variation. Ecology 87(3): 716–728.

Marsh K, Wallis I, Andrew R, Foley W. 2006. The detoxification limitation hypothesis: Where did it come from and where is it going? Journal of Chemical Ecology 32(6): 1247-1266.

Andrew RL, Peakall R, Wallis IR, Wood JT, Knight EJ, Foley WJ. 2005. Can marker-based quantitative genetics in the wild be successful? Heritability and genetic correlation of chemical defences in Eucalyptus. Genetics 171: 1989-1998.

Andrew RL, Miller JT, Peakall R, Crisp MD, Bayer RJ. 2003. Genetic, cytogenetic and morphological patterns in a mixed mulga population: Evidence for apomixis. Australian Systematic Botany 16(1): 69-80.

Miller JT, Andrew R, Bayer RJ. 2003. Molecular phylogenetics of the Australian acacias of subg. Phyllodineae (Fabaceae : Mimosoideae) based on the trnK intron. Australian Journal of Botany 51(2): 167-177.

Miller JT, Andrew R, Maslin BR. 2002. Towards and understanding of variation in the mulga complex (Acacia aneura and relatives). Conservation Science Western Australia 4(3): 19-35.