Oak Park Staff
| Ewen Mullins |
|
|
|---|---|---|
| Title | Senior Research Officer | |
| Job Remit | Impact assessment of GM crops | |
| Phone Number | +353 59 9170298 | |
| ewen.mullins@teagasc.ie | ||
| Programme website | www.gmoInfo.ie | |
Research Programme
For centuries, farmers have been improving and
modifying their crops. Through the process of selective
breeding, specific traits are identified and a hybrid
line is created that expresses the desired agronomic
character (e.g. high yield, disease resistance). This
conventional form of breeding has had great success but
by its nature has also imposed many restrictions. Modern
day biotechnology provides a means to accelerate this
pace of discovery and over the last decade especially,
the application of this science to crop improvement has
provided a tremendous insight into its potential.
Now, through biotechnology, a gene of
interest that originates in bacteria, fungi, another
plant or even an animal can now be inserted into a
specific crop. As a consequence, certain crops now
possess characteristics that previously would have been
considered unattainable. Though potentially
advantageous, the production of these transgenic or
genetically modified (GM) plants has invoked public
concern, in regard to the perceived impacts associated
with the coexistence of GM and non-GM crops.
To address these concerns, we have undertaken to
investigate the potential agronomic and environmental
impact of a select number of GM crops that could provide
an economic benefit to Irish farmers through reduced
chemical input costs. We are currently investigating the
agronomic potential of disease resistant potato and herbicide tolerant oilseed rape. In
parallel, we are conducting a gene discovery programme
in wheat, with the goal of isolating genes that could be
transferred into wheat to confer increased resistance to
the important leaf disease Septoria tritici. This
is critically important in light of the decreased
efficacy of existing fungicide regimes.
We have recently concluded a 2-year study to
develop cost-effective production measures to facilitate the
cultivation of GM herbicide tolerant oilseed rape in
coexistence with non-GM oilseed rape cultivars.
Employing the GENESYS gene flow modelling system, the
goal of this study was to preserve the sustainability of
existing non-GM oilseed rape systems in Ireland, should
there be an uptake of GMHT oilseed rape in the near
future.
To facilitate the transparent dissemination of
research data into the public domain, all peer-reviewed
research from the programme is available through the
programme’s website,
www.gmoInfo.ie.
Research Projects
-
Assessing the potential biodiversity impacts
of GM crop cultivation in Ireland (RMIS
5621; funded through EPA STRIVE)
-
Co-existence of GM and non-GM oilseed rape
in Irish tillage systems (RMIS 5629; funded
through DAFF Stimulus Fund)
- Evaluating the potential of non-Agrobacterium
spp. to facilitate gene transfer into main crops
(RMIS 5630)
-
Establishing crop guidelines for the coexistence
of GM and non-GM potato (RMIS 5772; funded
through DAFF Stimulus Fund)
-
Enhancing the conversion of straw into
bioethanol through transgenesis (RMIS 5773;
funded through DAFF Stimulus Fund)
- Systems approach to the control of late blight disease in potato (RMIS 5758; funded through DAFF Stimulus Fund)
Post-doctoral Researchers
- Sinead Phelan - Establishing crop guidelines for the coexistence of GM and non-GM potato
- Marcus Collier - Biodiversity impacts of future GM crop cultivation in Ireland
Current post-graduate students
- Rupali Shitole - Producing high value products through the bioconversion of wheat by Fusarium oxysporum
- Toni Wendt – Investigating alternative processes of gene transfer into plants
- Rosanna Hennessy - Enhancing the conversion of straw/bran into bioethanol with transgenic Fusarium spp.
- Moses Nyongesa - Testing the efficacy of transgenes conferring strong resistance to potato blight
- Paul Flanagan – Agronomic
implications associated with the coexistence of
HT and conventional oilseed rape
Past students
- Carloalberto Petti – Risk assessment of GM potato with increased blight tolerance ( PhD, 2008)
- Lucy Courtney – Developing clover with enhanced resistance to Sclerotinia trifoliorum ( M.Sc, 2007)
Select Publications
- Petti, C., Wendt, T., Meade, C and Mullins, E. (2009).
Evidence of genotype dependency within
Agrobacterium tumefaciens in
relation to the integration of vector backbone sequence in transgenic Phytophthora infestans-tolerant potato.
Journal of Bioscience and Bioengineering, 107(3), 301-306. - O'Brien, M. and Mullins, E. (2009).Relevance of genetically modified crops in light of future environmental and legislative challenges to the agri-environment. Annals of Applied Biology, 154, 323-340.
- Kildea, S., Ransbotyn, V., Khan, M., Fagan, B., Mullins, E. and Doohan, F. (2008). Bacillus megaterium shows potential for the biocontrol of septoria tritici blotch of wheat. Biological Control, 47 (1), 37-45.
- O’Brien, M., Spillane, C., Meade, C. and
Mullins E. (2008). An insight into the impact of
arable farming on Irish biodiversity: A scarcity
of studies hinders a rigorous assessment.
Biology and Environment, Proceedings of the Royal Irish Academy, Volume 108B, Issue 2, pp 97 - 108. - Petti, C. Meade, C and Mullins, E. (2007).
Facilitating co-existence by tracking gene
dispersal in conventional potato systems with
microsatellite markers.
Environmental Biosafety Research 6(4), 223-231. - Ryan, E., Meade, C., Mullins, E., Burke, J.
and Downes, M. (2007).
Tracing field
hybridisation in ryegrass species using
microsatellite and morphological markers.
Environmental Biosafety Research , Vol. 5(2), p106-118. - Mullins, E., Milbourne, D., Petti, C. Doyle-Prestwich,
B.M. and Meade, C. (2006). Potato in the age of
biotechnology.
Trends in Plant Science, 11(5): 254-260. - Flannery, M-L., Meade, C.M. and Mullins, E.
(2005). Employing a composite gene-flow index to
numerically quantify a crop’s potential for gene
flow: an Irish perspective.
Environmental Biosafety Research, Vol. 1, No. 4, p. 29. - Flannery, M-L., Thorne, F.S., Kelly, P.W.
and Mullins, E. (2005). An economic cost-benefit
analysis of GM crop cultivation: An Irish case
study.
AgBioforum – Journal of Agrobiotechnology, Management and Economics, 7(4): 1-9. - Meade, C. M. and Mullins, E. (2005). GM crop
cultivation in Ireland: Ecological and
Economical considerations.
Biology and Environment, Proceedings of the Royal Irish Academy, Vol. 105B, No. 1, p. 33-52. - Ospina-Giraldo, M., Mullins, E. and Kang, S.
(2003). Loss of function of the Fusarium
oxysporum SNF1 gene reduces virulence on
cabbage and Arabidopsis.
Current Genetics, 44 (1), 49-57. - Kang, S., Ayers, J.E., DeWolf, E., Geiser, D., Kuldau, G., Moorman, G.W., Mullins, E., Correll, J.C., Deckert, G., Lee, Y-W., Martin, F.N. and Subbarao, K. (2002). Internet-based database for cataloguing the genetic and phenotype diversity of plant pathogens. Phytopathology, 92: 232-236.
- Mullins, E. and Kang, S. (2001). Review:
Transformation as a tool for studying plant
pathogens.
Cellular and Molecular Life Sciences, 58: 2043-2052. - Mullins, E., Chen, X., Romaine, P., Raina,
R., Geiser, D.M. and Kang, S. (2001). Agrobacterium-mediated transformation of
Fusarium oxysporum: An efficient tool
for insertional mutagenesis and gene transfer.
Phytopathology, Vol. 91, 173-180.



