People
Joseph, Jeffrey A.
| Job Title | Population genetics research assistant |
|---|---|
| Department | Jodrell |
| Section | Genetics |
| Science Teams |
Malpighiales United Kingdom Large-Scale Syntheses |
| Joined Kew | 2003 |
| Foreign Language(s) |
Qualifications & Appointments
BSc (Hons), Univ. Hertfordshire, 1995
Role
Conservation genetics, population genetics, and ecological adaptive genetic traits, and phylogenetics.
Currently writing up a part-time MPhil thesis on the phylogenetic analysis of low to high-level polyploids in facultative and obligate apomict species in UK flora (Potentilla, Alchemilla and outgroups). This work has required the cloning of two nuclear DNA regions (ITS and ncpGS) and the production of AFLP data to help assess the unclear and complex relationships within these genera. This work should contribute to the understanding of the interspecific/microspecific relationships within these genera (primarily Alchemilla) that are considered as Vulnerable or Endangered in the British Plant Red Book. Population genetics work in Malpighiales investigates the gene flow in an Austrian hybrid zone (Populus ×canescens) of two species of Aspen (Populus alba and P. tremula) utilising nuclear microsatallite DNA, Expressed Sequence Tag SNP data and leaf morphometrics. Infusing this information with QTLs and admixture mapping to aid in the identification of species-specific, ecological adaptive traits. Populus is a useful tree model with which to study population dynamics and structure, and may help in determining genetic traits involved in speciation.
Projects
Introgression of Abiotic Stress Response Genes across Hybrid Zones in Populus
Selected Publications 2001-2005
Chase M.W., Knapp S., Cox A.V., Clarkson J.J., Butsko Y., Joseph J., Savolainen V. & Parokonny A.S. (2003). Molecular systematics, GISH and the origin of hybrid taxa in Nicotiana (Solanaceae). Annals of Botany 92: 107-127.
Lexer, C., Fay, M.F., Joseph, J.A., Nica, M.-S. & Heinze, B. (2005). Barrier to gene flow between two ecologically divergent Populus species, P. alba (white poplar) and P. tremula (European aspen): the role of ecology and life history in gene introgression. Molecular Ecology 14(4):1045-1057.
Selected Publications pre-2001
Chase, M.W., Soltis, D.E., Soltis, P.S., Rudall, P.J., Fay, M.F., Hahn, W.H., Sullivan, S., Joseph, J., Molvray, M., Kores, P.J., Givnish, T.J., Sytsma, K.J. & Pires, J.C. (2000). Higher-level Systematics of the monocotyledons: An assessment of current knowledge and a new classification. In Wilson, K.L. & Morrison D.A. (eds) Monocots: Systematics and evolution. Melbourne, Australia: CSIRO. 3–16.
Fay M.F., Rudall, P.J., Sullivan S., Stobart, K.L., de Bruijn, A.Y., Reeves, G., Qamaruz-Zaman, F., Hong, W.-P., Joseph, J. , Hahn, W.J., Conran, J.G. & Chase, M.W. (2000). Phylogenetic studies of Asparagales based on four plastid DNA loci. In Wilson, K.L. & Morrison D.A. (eds) Monocots: Systematics and evolution. Melbourne, Australia: CSIRO. 360–371.