
Overview
Background
Genetics of mental health (new research)
We are using the genetic model organism, C. elegans, do investigate the genetic basis of both normal and disordered behaviour. Our current interests are identifying the genes responsible for anxiety and depression as well as the genes for eating disoders and addiction. Using C. elegans as a model organism will also allow us to study gene function as it relates to behaviour.
Molecular mechanisms of phosphine resistance (other research)
Genetic mapping of oxidative stress resistance genes. The fumigant phosphine disrupts oxidative metabolism, resulting in the production of reactive oxygen intermediates. This causes the premature ageing and death of targeted pests. Insect pests of stored grain in Australia now exhibit resistance to phosphine at levels more than 200 times the normal lethal dose.
We have genetically mappedf and identified the genes responsible for phosphine resistance in tall major insect pests of stored grain. We are using a systems biology approach in the model organism C. elegans to understand the molecular basis of phosphine action. Our genetic studies have recently shown that resistance to phosphine is associated with an extension of lifespan
Availability
- Associate Professor Paul Ebert is:
- Available for supervision
- Media expert
Fields of research
Qualifications
- Bachelor (Honours) of Science (Advanced), University of California-Riverside
- Masters (Coursework) of Science, University of Washington
- Doctor of Philosophy, Washington State University
Research interests
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Genetics of mental health
The genetics of mental health is notoriously difficult to study. I am developing behavioural assays in the model organism, Caenorhabditis elegans to study the genetics and neuropharmacology of anxiety and depression as well as anorexia and addiction.
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Metabolic toxicology - fumigant toxicology
I am interested in energy metabolism and mitochondrial function. My work is based around the toxicology of the agricultural fumigant, phosphine. The phosphine resistance gene, dld, not only results in phosphine resistance, but also modulates cellular energy metabolism.
Research impacts
Mental health
Anxiety is the most common mental health condition. Hundreds of candidate anxiety genes have been identified by human Genome Wide Association Studies (GWAS), but the functions of these genes are difficult to study in humans or mammalian model organisms. We have developed behavioural assays using C. elegans that are allowing us to confirm the role in anxiety of the candidate genes identified by GWAS.
We have also identified a suite of compounds that can induce anorexia in C. elegans. This system is allowing us to test the limited number of candidate anorexia genes that have been identified by GWAS and to identify new genes by genetic screens.
Other research
Our discovery of the economically important phosphine resistance gene has allowed us to characterise resistance across Australia and India. It is now being use to monitor resistance management strategies in collaboration with major grain handling companies to improve commercial practice in Australia and India. This is the subject of a recent Australia-India AISRF project on which I was the UQ lead investigator. We have also used the gene marker to characterise resistance in Vietnam, China, Turkey. Others have used our work to characterise resistance in the USA and Brazil.
We have also sought to use our understanding of how phosphine works to identify synergistic gases that might be used to extend the useful life of phosphine as a grain fumigant. This work was supported by an ARC Discovery grant and a research grant from the Plant Biosecurity CRC.
We have also discovered the the phosphine resistance gene, dld, is a lifespan extending factor. Interestingly, it also protects against pathology in a C. elegans model of Alzheimer's disease, a serious ageing associated disease. Alzheimer's disease is a major disease of global importance with huge economic ramifications due to the level of care required by people who suffer from dementia. Our system allows us to explore the metabolic basis of the disease, an aspect that has until recently been largely neglected.
Works
Search Professor Paul Ebert’s works on UQ eSpace
1999
Conference Publication
A unique D1-like dopamine receptor gene in honey bees shows age related expression in mushroom body intrinsic cells
Humphries, M. and Ebert, P. R. (1999). A unique D1-like dopamine receptor gene in honey bees shows age related expression in mushroom body intrinsic cells. XIII International Congress of IUSSI: IUSSI 1999, Adelaide, S. Aust., 29 December, 1998 - 4 January, 1999. America: IUSSI.
1999
Conference Publication
Comparative genomic and detailed structural analysis of the GABA neurotransmitter transporter gene family between vertebrates and the invertebrates, Apis Mellifera and C.elegans
Dutton, P., Mccart, A., Whitehall, V. L. and Ebert, P. R. (1999). Comparative genomic and detailed structural analysis of the GABA neurotransmitter transporter gene family between vertebrates and the invertebrates, Apis Mellifera and C.elegans. ComBio 99, Conrad Jupiters, Gold Coast, 27-30 September, 1999. Kent Town, SA: Aust. Society for Biochemistry and Molecular Biology.
1999
Conference Publication
Structural features of the biogenic amine receptor genes
Ebert, P. R., Meadows, B., Humphries, M., Swasdipan, N., Whitehall, V. L. and Doan, T. (1999). Structural features of the biogenic amine receptor genes. XIII International Congress of IUSSI: IUSSI 1999, Adelaide, SA, Australia, 29 December 1998 - 4 January 1999. United States: IUSSI.
1998
Journal Article
Isolation of seven unique biogenic amine receptor clones from the honey bee by library scanning
Ebert, P. R., Rowland, J. E. and Toma, D. P. (1998). Isolation of seven unique biogenic amine receptor clones from the honey bee by library scanning. Insect Molecular Biology, 7 (2), 151-162. doi: 10.1046/j.1365-2583.1998.72059.x
1996
Journal Article
Isolation of megabase-sized DNA fragments from the honey bee (Apis mellifera) genome
Ebert, Paul R. (1996). Isolation of megabase-sized DNA fragments from the honey bee (Apis mellifera) genome. Journal of Apicultural Research, 35 (3-4), 124-125. doi: 10.1080/00218839.1996.11100924
1995
Journal Article
An S-RNase promoter from Nicotiana alata functions in transgenic N. alata plants but not Nicotiana tabacum
Murfett, Jane, Ebert, Paul R., Haring, Volker and Clarke, Adrienne E. (1995). An S-RNase promoter from Nicotiana alata functions in transgenic N. alata plants but not Nicotiana tabacum. Plant Molecular Biology, 28 (5), 957-963. doi: 10.1007/bf00042080
1995
Journal Article
Primary sequence, copy number, and distribution of mariner transposons in the honey bee
Ebert, P. R., Hileman, J. P. and Nguyen, H. T. (1995). Primary sequence, copy number, and distribution of mariner transposons in the honey bee. Insect Molecular Biology, 4 (2), 69-78. doi: 10.1111/j.1365-2583.1995.tb00010.x
1992
Journal Article
Expression of a self-incompatibility glycoprotein (S2-Ribonuclease) from Nicotiana alata in transgenic Nicotiana tabacum
Murfett, Jane, Cornish, Edwina C., Ebert, Paul R., Bonig, Ingrid, McClure, Bruce A. and Clarke, Adrienne E. (1992). Expression of a self-incompatibility glycoprotein (S2-Ribonuclease) from Nicotiana alata in transgenic Nicotiana tabacum. The Plant Cell, 4 (9), 1063-1074. doi: 10.2307/3869475
1990
Journal Article
Molecular genetics and biology of self-incompatibility in Nicotiana alata, an ornamental tobacco
Mcclure, B.A., Haring, V., Ebert, P.R., Anderson, M.A., Bacic, A. and Clarke, A.E. (1990). Molecular genetics and biology of self-incompatibility in Nicotiana alata, an ornamental tobacco. Australian Journal of Plant Physiology, 17 (3), 345-353. doi: 10.1071/pp9900345
1990
Journal Article
Transformation and regeneration of the self-incompatible species Nicotiana alata Link & Otto
Ebert, Paul R. and Clarke, Adrienne E. (1990). Transformation and regeneration of the self-incompatible species Nicotiana alata Link & Otto. Plant Molecular Biology, 14 (5), 815-824. doi: 10.1007/bf00016514
1989
Journal Article
Style self-incompatibility gene products of Nicotlana alata are ribonucleases
McClure, Bruce A., Haring, Volker, Ebert, Paul R., Anderson, Marilyn A., Simpson, Richard J., Sakiyama, Fumio and Clarke, Adrienne E. (1989). Style self-incompatibility gene products of Nicotlana alata are ribonucleases. Nature, 342 (6252), 955-957. doi: 10.1038/342955a0
1989
Book Chapter
Binary vectors
An, Gynheung, Ebert, Paul R., Mitra, Amitava and Ha, Sam B. (1989). Binary vectors. Plant molecular biology manual. (pp. 29-47) Dordrecht: Springer Netherlands. doi: 10.1007/978-94-009-0951-9_3
1988
Book Chapter
Binary vectors
An, Gynheung, Ebert, Paul R., Mitra, Amitava and Ha, Sam B. (1988). Binary vectors. Plant molecular biology manual. (pp. 45-63) Dordrecht: Springer Netherlands.
1987
Journal Article
Identification of an essential upstream element in the nopaline synthase promoter by stable and transient assays
Ebert, P.R., Ha, S.B. and An, G. (1987). Identification of an essential upstream element in the nopaline synthase promoter by stable and transient assays. Proceedings of the National Academy of Sciences, 84 (16), 5745-5749. doi: 10.1073/pnas.84.16.5745
1986
Journal Article
A gene essential for Agrobacterium virulence is homologous to a family of positive regulatory loci
Winans, S. C., Ebert, P. R., Stachel, S. E., Gordon, M. P. and Nester, E. W. (1986). A gene essential for Agrobacterium virulence is homologous to a family of positive regulatory loci. Proceedings of the National Academy of Sciences, 83 (21), 8278-8282. doi: 10.1073/pnas.83.21.8278
1986
Journal Article
Both TATA box and upstream regions are required for the nopaline synthase promoter activity in transformed tobacco cells
An, Gynheung, Ebert, Paul R., Yi, Bu-Young and Choi, Chul-Hi (1986). Both TATA box and upstream regions are required for the nopaline synthase promoter activity in transformed tobacco cells. Molecular & General Genetics, 203 (2), 245-250. doi: 10.1007/bf00333961
1986
Journal Article
Promoters of Agrobacterium tumefaciens Ti-plasmid virulence genes
Das, A., Stachel, S., Ebert, P., Allenza, P., Montoya, A. and Nester, E. (1986). Promoters of Agrobacterium tumefaciens Ti-plasmid virulence genes. Nucleic Acids Research, 14 (3), 1355-1364. doi: 10.1093/nar/14.3.1355
Funding
Past funding
Supervision
Availability
- Associate Professor Paul Ebert is:
- Available for supervision
Before you email them, read our advice on how to contact a supervisor.
Available projects
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Phosphine toxicology
This project is focused on energy metabolism and mitochondrial function as it relates to the toxicology of the agricultural fumigant, phosphine. This project employs a systems biology approach that ionvolves bioinformatics, genomics, metabolomics and functional genetics in the model organism, Caenorhabditis elegans.
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Genetics of mental health
A major focus of my lab is investigating the genetics of mental health in the genetic model organism, C. elegans. The fundamental insight that makes it possible to study mental health in a nematode like C. elegans is that at the foundation of every behavioural disorder is a completely normal evolved behaviour. Thus, to study anxiety, the most widespread mental health problem that affects society, one has only to recognise that it is a component of harm avoidance mechanisms. Every animal has the ability to detect and evaluate potential harms, so the genetics of harm avoidance can provide fundamental insight into a bewildering array of anxiety disorders that currently lack a unifying theoretical foundation.
My lab is using a combination of psychoactive drugs, C. elegans strains with neural signalling mutations and the tools of systems biology to study:
- Eating disorders
- Addiction
- Anxiety
And possibly:
- Depression
- Attention deficit hyperactivity disorder
- Learning and forgetting
Supervision history
Current supervision
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Doctor Philosophy
Pharmacogenetics of anorexia in the model organism C.elegans
Principal Advisor
Other advisors: Associate Professor Steven Zuryn
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Doctor Philosophy
Comparative analysis of instinctual feeding behaviour and addiction in the genetic model organism, C. elegans.
Principal Advisor
Other advisors: Associate Professor Steven Zuryn
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Master Philosophy
Mechanisms of phosphine toxicity under low oxygen
Principal Advisor
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Doctor Philosophy
Transposon Activation as an Adaptive Stress Response in C. elegans
Principal Advisor
Other advisors: Professor Sandie Degnan
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Doctor Philosophy
Comparative analysis of instinctual feeding behaviour and addiction in the genetic model organism, C. elegans.
Principal Advisor
Other advisors: Associate Professor Steven Zuryn
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Doctor Philosophy
Insect P450s for degradation of polyethylene plastic
Associate Advisor
Other advisors: Professor Elizabeth Gillam
Completed supervision
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2022
Doctor Philosophy
Investigating Environmental Stress as a Driver of Epigenetic and Genetic Variation Using the Model Organism C. elegans.
Principal Advisor
Other advisors: Associate Professor Steven Zuryn
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2019
Doctor Philosophy
The relationship between phosphine resistance and genetic determinants of longevity
Principal Advisor
Other advisors: Dr Rebecca Cramp
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2018
Doctor Philosophy
Phosphine Toxicity in Caenorhabditis elegans: Synergy and Cross-Resistance with Other Pest Control Treatments, Including Gamma Radiation
Principal Advisor
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2018
Doctor Philosophy
Characterization of Caenorhabditis elegans phosphine resistant mutant alh-6(wr3)
Principal Advisor
Other advisors: Professor James Fraser
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2017
Doctor Philosophy
Metabolic study of Alzheimer's disease using mutant C. elegans
Principal Advisor
Other advisors: Professor Jurgen Götz
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2017
Doctor Philosophy
Phosphine resistance mechanisms in Caenorhabditis elegans
Principal Advisor
Other advisors: Professor Massimo Hilliard
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2016
Doctor Philosophy
Genetics of phosphine resistance in the rice weevil Sitophilus oryzae (L.) (Coleoptera: Curculionidae)
Principal Advisor
Other advisors: Professor Steve Chenoweth
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2015
Doctor Philosophy
Developing high-throughput methods for C. elegans to better understand the newly discovered gasotransmitter sulfur dioxide
Principal Advisor
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2012
Doctor Philosophy
Molecular genetics and ecology of phosphine resistance in Lesser Grain Borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae)
Principal Advisor
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2009
Doctor Philosophy
Studies on Phosphine Toxicity and resistance mechanisms in Caenorhabditis elegans
Principal Advisor
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2008
Doctor Philosophy
Comparative Genetic and Toxicological Analysis of Phosphine Resistance in the Lesser Grain Borer [(Rhyzopertha dominica (f.) (Coleoptera: Bostrichidae)]
Principal Advisor
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2008
Doctor Philosophy
Mitochondrial Phosphine Toxicity and the Physiology and Genetics of Longevity in Caenorhabditis Elegans
Principal Advisor
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2008
Doctor Philosophy
Genetic mapping and pharmacological analysis of phosphine toxicity and resistance pathways in Caenorhabditis elegans
Principal Advisor
Other advisors: Dr Simon Worrall
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2006
Doctor Philosophy
ROLE OF IRON AND FERRITIN IN THE TOXICITY OF PHOSPHINE TO Caenorhabditis elegans
Principal Advisor
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2005
Master Philosophy
GABA NEUROTRANSMITTER TRANSPORTERS (GAT)-1A AND GAT-1B, FROM THE HONEY BEE (APIS MELLIFERA): STRUCTURE, PHYLOGENETICS, EXPRESSION AND FUNCTION
Principal Advisor
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2005
Doctor Philosophy
MOLECULAR ANALYSIS OF CROSS COMMUNICATION BETWEEN SIGNAL TRANSDUCTION PATHWAYS DURING PATHOGEN RESISTANCE RESPONSE IN Arabidopsis thaliana
Principal Advisor
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2004
Doctor Philosophy
GENETIC ENGINEERING OF DISEASE RESISTANCE BY THE MANIPULATION OF PLANT DEFENCE SIGNALLING GENES
Principal Advisor
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2004
Doctor Philosophy
MOLECULAR GENETICS AND LINKAGE ANALYSIS OF PHOSPHINE RESISTANCE IN THE LESSER GRAIN BORER, RHYZOPERTHA DOMINICA (COLEOPTERA: BOSTRICHIDAE)
Principal Advisor
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2003
Doctor Philosophy
BANANA STREAK BADNAVIRUS (BSV) PROMOTERS - CHARACTERISATION, OPTIMISATION AND APPLICATION
Principal Advisor
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2002
Doctor Philosophy
MOLECULAR-GENETICS OF OLFACTION AND ITS ROLE IN THE REGULATION OF INSECT BEHAVIOUR
Principal Advisor
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2015
Doctor Philosophy
Mechanisms underlying inhibition of muscle disuse atrophy during aestivation in the green-striped burrowing frog, Cyclorana alboguttata
Associate Advisor
Other advisors: Dr Rebecca Cramp, Professor Craig Franklin
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2007
Doctor Philosophy
MITOCHONDRIAL GENOMICS OF LICE (INSECTA: PHTHIRAPETERA)
Associate Advisor
Other advisors: Professor Stephen Barker
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2005
Doctor Philosophy
Biochemical and functional characterization of cysteine proteases from ginger rhizome (Zingiber officinale)
Associate Advisor
Media
Enquiries
Contact Associate Professor Paul Ebert directly for media enquiries about:
- C elegans - genetics
- Fumigant phosphine resistance in insects
- Genetics - C elegans
- Grain storage insects
- Insect fumigants
- Insect genetics
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