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Research
Molecular regulation of plant development
Using a combination of genetic, genomic and biochemical approaches, we
are investigating the regulation of a wide range of developmental
processes including wood formation, seed development, trichome
development, and flowering time. All these processes are affected by the
plant hormone ethylene and we aim to better understand how ethylene is
involved, and how it interacts with other factors to control plant
development.
Genomic resources for
poplar and potato
Researchers in my
Carleton University lab are working on two Genome Canada projects. In
the Functional genomics of regulation in forest treesproject lead by
John MacKay, my lab is responsible for producing a large population of
activation tagged poplars. In a similar project The Canadian Potato
Genome Projectlead by Barry Flinn and myself, my lab is producing an
equally large population of activation tagged potatoes. These two
collections of tagged mutants will be completed in 2005 and will be an
excellent resource for the identification of new genes responsible for
plant form and function. We are currently looking for collaborations to
screen these tagged lines for phenotypes of interest.
Publications
MacKay, J.,
Bérubé, H., Regan,
S., Séguin, A. (2004) Functional genomics in forest
trees: application to the investigation of defense mechanisms and wood
formation. In: Plantation Forest
Biotechnology for the 21st Century, C Walter and Mike Carson Eds.
Kozela,
C. and Regan, S.
(2003) How plants make tubes. Trends Plant Sci. 8 (4): 159-164.
Andersson-Gunnerås,
S., Hellgren J.M., Björklund, S., Regan, S., Moritz, T., and
Sundberg, B. (2003) Asymmetric expression of a poplar ACC oxidase
controls ethylene production during gravitational induction of tension
wood. Plant J. 34:339-350.
Langer,
K., Ache, P., Geiger, D., Stinzing, A., Arend, M., Wind, C., Regan, S., Fromm, J., and
Hedrich, R. (2002) Poplar potassium transporters capable of controlling
K+ homeostasis and K+-dependent xylogenesis. Plant J. 32, 997-1009.
Hanson,
J., Regan, S.,
Engstrom, P. (2002) ATHB13 is expressed in leaf traces of both
Arabidopsis and hybrid aspen. Plant
Cell Rep. 21:81-89.
Chaffey,
N., Cholewa, E., Regan, S.,
Sundberg, B. (2002) Secondary xylem development in Arabidopsis: a
model for wood formation. Physiol.
Plant. 114:594-600.
Regan, S., and Sundberg, B.
(2001) In situ hybridization for the wood-forming tissues of trees. In: Wood formation in trees: developmental
cell biology techniques, Ed. N. Chaffey. Harwood Academic
Publishers.
Tuominen,
H., Puech, L., Regan, S.,
Fink, S., Olsson, O., and Sundberg, B. (2000) Cambial-region specific
expression of the Agrobacterium iaa genes in transgenic Populus
visualized by a linked uidA reporter gene. Plant Physiol. 123: 531-542.
Regan, S., Bourquin, V.,
Tuominen, H., and Sundberg, B. (1999) Accurate and high resolution in
situ hybridization analysis of gene expression in secondary stem
tissues. Plant J. 19: 363-369.
Sterky,
F., Regan, S.,
Karlsson, J., Hertzberg, M., Rohde, A., Holmberg, A., Amini, B.,
Bhalerao, R., Larsson, M., Villarroel, R., Van Montagu, M., Sandberg,
G., Olsson, O., Teeri, T.T., Boerjan, W., Gustafsson, P., Uhlén,
M., Sundberg, B., and Lundeberg, J. (1998) Gene discovery in the
wood-forming tissues of Populus: Analysis of 5762 expressed sequence
tags. Proc. Natl. Acad. Sci. USA
95, 13330-13335.
Rutledge,
R., Regan, S.,
Nicolas, O., Fobert, P., Côté, C., Bosnich, W., Kauffeldt,
C., Sunohara, G., Séguin, A., and Stewart D. (1998)
Characterization of an AGAMOUS homologue from the conifer black spruce
that produces floral homeotic conversions when expressed in Arabidopsis. Plant J. 15: 625-634.
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