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Staff Profile

Wallace Cowling

A/Prof Wallace Cowling

Associate Professor
School of Plant Biology

Contact Details
Tel: 6488 7979
Fax:6488 1108
Mail Bag: M084
Email: wcowling@cyllene.uwa.edu.au


Research Summary

I grew up in the large city of Melbourne, but a love of farms and plants lead me to the Agricultural Science degree at Melbourne University, from which I graduated in 1975. I was awarded a University of Melbourne Travelling Scholarship and studied for the PhD in Plant Pathology at the University of California at Davis, completed in 1980. My PhD supervisor was Dr David Gilchrist, Professor in Plant Pathology at UC Davis. Plant breeding for disease resistance and associated molecular and genetic research has dominated my career since that time, starting with a CSIRO Postdoctoral Studentship at Cornell University and then as a plant breeder for lupins at Agriculture Western Australia. In February 1999 I took up the position as Associate Professor in Plant Breeding at the University of Western Australia. This is an industry-funded position and is 70% involved in canola breeding in the company Canola Breeders Western Australia Pty Ltd, and 30% in teaching and research.

As a practicing plant breeder, I have released several commercial lupin and canola varieties. I have also undertaken research into genetics and physiology of resistance to various diseases in lupins and canola, and published several research papers in this field. I was co-author with international authors on a book chapter on lupin breeding (Cowling et al., 1998b), and published a monograph on lupin genetic resources through the International Board for Plant Genetic Resources (Cowling et al., 1998a).

More recently, my research in canola is moving into molecular genetics and identifying genes by molecular markers and other means in wide crosses of canola with related species. I continue to develop my research interests in disease resistance and molecular markers for crop improvement, and to explore new ways to improve Brassica oilseeds through interspecific crossing, doubled haploidy, gene transformation or hybrid development. This involves international collaboration with our German plant breeding partners NPZ Lembke, Agriculture and Agrifood Canadas canola molecular genetics laboratory at Saskatoon, Canada, and others. I am also developing a research interest in the role of apoptosis (programmed cell death) in diseases of plants, in collaboration with Prof David Gilchrist at the University of California, Davis.

I acted as convenor of the 12th Australasian Plant Breeding Conference in 2002 and the 1st Australian Lupin Technical Symposium in 1994.

Research Interests:

Canola breeding
Disease resistance
Gene expression
Molecular biology
Molecular genetics
Plant breeding methodology
Plant molecular markers

Key Research and Expertise:

My research goal is to apply knowledge of evolutionary genetics, molecular genetics and biotechnology for efficient genetic improvement in plants.

In my research, I have applied the principles of population and quantitative genetics to plant breeding, and explored ways of improving breeding for multiple traits such as disease resistance and other important agronomic characters. I am using molecular genetics to improve plant breeding and to better understand the genetics and biochemistry of plant host-parasite relationships. I am concerned about the efficient use of plant genetic resources, and understanding and exploiting natural genetic variation in plants.

Current projects include:

Using molecular markers to follow genes and chromosomal segments in wide crosses between Brassica napus and B. juncea.
Making use of known genes in Arabidopsis and other close relatives of B. napus to identify key genes involved in disease resistance and oil quality in B. napus.
Improving resistance of peas to blackspot fungus through rapid cycles of recurrent selection, in combination with improvements in stem strength.
Understanding the role of apoptosis (programmed cell death) in the host-parasite interaction of the blackleg fungus and B. napus, and other necrotrophic diseases of legume crops and canola.
Improving doubled haploid technology from microspore culture in lupins.
Establishing a molecular map of lupin using RFLP and other locus-specific and cross-transferable markers in Lupinus angustifolius, L. albus and other lupin species.

Other Expertise:

I am Chief Executive Officer and Research Director of Canola Breeders Western Australia Pty Ltd, a small company associated with The University of Western Australia. I recently qualified as a Graduate of the Australian Institute of Company Directors. As a plant breeder, I have released several lupin and canola cultivars during my career, and I am enthusiastically applying new breeding approaches to canola in our new and exciting company CBWA. I achieve great satisfaction from seeing the results of research in new and improved canola varieties on farms.

Future Research:

Hybrid breeding requires advanced understanding of heterotic pools of germplasm that may be exploited in hybrids with strong hybrid vigour or heterosis. I am involved in a new international ACIAR project between Australia, China and India where I will apply molecular markers to determining genetic distance between canola germplasm in the different countries and measure the heterosis in cross progeny between the different countries. Is there an association between genetic distance and heterosis?

With research colleagues, I hope to further explore the application of molecular genetics to the study of gene transfer in wide crosses in the Brassica family. We are already seeing great practical benefits from our previous research in this area, and hope to extend the research to new Brassica species and related species.

I have a strong interest in the basic mechanism of disease resistance and susceptibility in plants, and would like to pursue our current results that suggest that the susceptible reaction in lesions caused by necrotrophic fungal pathogens is the result of apoptosis in plant tissue induced by the fungus.

Industrial Relevance:

My work ranges from pure research through to applied plant breeding. However, all my work has industry relevance. For example, if we are successful in understanding the molecular basis of disease resistance, this will have major ramifications for plant breeding around the world. My canola breeding activities are focussed on industry outcomes CBWA must survive in the competitive world of canola breeding to produce relevant and valuable outcomes for industry.

New and Noteworthy:

The release of Trilogy, Tribune, and Trigold canola represents a first for Australian canola breeding, and a first for UWA. They are the first doubled haploid canola varieties produced in Australia, and were developed in 4 years from crossing in 2000 perhaps a world record from crossing to growers' fields in 2004. UWA was the first university to join a private plant breeding company (CBWA) in 2001 with co-investors including growers (Council of Grain Grower Organisations Ltd) and the Export Grains Centre, and more recently NPZ Lembke (a German plant breeding company).

Research Grants

Current Projects:

Cowling/Bayliss/Kailis2002-2005
ARC Linkage-Project LP0210571
Exploiting the Arabidopsis genome sequence as a molecular toolbox for Brassica improvement.

Cowling/Nelson/Barker2002-2005
GRDC Project UWA372
Development of molecular marker and mapping technology for lupin breeding: UWA component. Comparative mapping across lupin species.

Cowling/Wroth/Khan2001-2005
GRDC Project UWA356
Rapid recurrent selection to improve resistance to black spot in peas.

Cowling/Wroth2000-2003
ARC SPIRT Project C00002521
DNA marker-assisted breeding in interspecific crosses to improve canola (Brassica napus L.)

Cowling/Wroth/Bayliss2000-2002
GRDC Project UWA341
Isolated Microspore Culture of Lupinus spp.

Funding Received:

From 2000 to 2004 I won competitive grant funding of approximately $300,000 per year and $500,000 per year of commercial plant breeding income through the CBWA project at UWA. The latter is significant because it includes my salary which is totally industry funded, 70% by CBWA Pty Ltd for canola breeding and 30% by Export Grains Centre Ltd for research and teaching.


 

Opportunities for Postgrads and Honours Students

My research in canola is in molecular genetics and identifying genes by molecular markers and other means in wide crosses of canola with related species. I continue to develop my research interests in disease resistance and molecular markers for crop improvement, and to explore new ways to improve Brassica oilseeds through interspecific crossing, doubled haploidy, gene transformation or hybrid development. This involves international collaboration with our German plant breeding partners NPZ Lembke, Agriculture and Agrifood Canadas canola molecular genetics laboratory at Saskatoon, Canada, and others. I am also developing a research interest in the role of apoptosis (programmed cell death) in diseases of plants, in collaboration with Prof David Gilchrist at the University of California, Davis.

Research Interests:

Canola breeding
Disease resistance
Gene expression
Molecular biology
Molecular genetics
Plant breeding methodology
Plant molecular markers

Key Research and Expertise:

My research goal is to apply knowledge of evolutionary genetics, molecular genetics and biotechnology for efficient genetic improvement in plants.

In my research, I have applied the principles of population and quantitative genetics to plant breeding, and explored ways of improving breeding for multiple traits such as disease resistance and other important agronomic characters. I am using molecular genetics to improve plant breeding and to better understand the genetics and biochemistry of plant host-parasite relationships. I am concerned about the efficient use of plant genetic resources, and understanding and exploiting natural genetic variation in plants.

Current projects include:

Using molecular markers to follow genes and chromosomal segments in wide crosses between Brassica napus and B. juncea.
Making use of known genes in Arabidopsis and other close relatives of B. napus to identify key genes involved in disease resistance and oil quality in B. napus.
Improving resistance of peas to blackspot fungus through rapid cycles of recurrent selection, in combination with improvements in stem strength.
Understanding the role of apoptosis (programmed cell death) in the host-parasite interaction of the blackleg fungus and B. napus, and other necrotrophic diseases of legume crops and canola.
Improving doubled haploid technology from microspore culture in lupins.
Establishing a molecular map of lupin using RFLP and other locus-specific and cross-transferable markers in Lupinus angustifolius, L. albus and other lupin species.

Future Research:

Hybrid breeding requires advanced understanding of heterotic pools of germplasm that may be exploited in hybrids with strong hybrid vigour or heterosis. I am involved in a new international ACIAR project between Australia, China and India where I will apply molecular markers to determining genetic distance between canola germplasm in the different countries and measure the heterosis in cross progeny between the different countries. Is there an association between genetic distance and heterosis?

With research colleagues, I hope to further explore the application of molecular genetics to the study of gene transfer in wide crosses in the Brassica family. We are already seeing great practical benefits from our previous research in this area, and hope to extend the research to new Brassica species and related species.

I have a strong interest in the basic mechanism of disease resistance and susceptibility in plants, and would like to pursue our current results that suggest that the susceptible reaction in lesions caused by necrotrophic fungal pathogens is the result of apoptosis in plant tissue induced by the fungus.

Teaching

Teaching:

I teach a third year BScAgr course 763.310 Genetics and Plant Breeding, and contribute to other courses on genetics in the Faculty. I supervise or co-supervise 5 PhD students. I help to co-ordinate the "Molecular Genetics and Plant Breeding Research Group" where research students and associates meet to discuss their work and interests.

Community Service and Outreach

Industrial Relevance:

My work ranges from pure research through to applied plant breeding. However, all my work has industry relevance. For example, if we are successful in understanding the molecular basis of disease resistance, this will have major ramifications for plant breeding around the world. My canola breeding activities are focussed on industry outcomes CBWA must survive in the competitive world of canola breeding to produce relevant and valuable outcomes for industry.


New and Noteworthy:

The release of Trilogy, Tribune, and Trigold canola represents a first for Australian canola breeding, and a first for UWA. They are the first doubled haploid canola varieties produced in Australia, and were developed in 4 years from crossing in 2000 perhaps a world record from crossing to growers' fields in 2004. UWA was the first university to join a private plant breeding company (CBWA) in 2001 with co-investors including growers (Council of Grain Grower Organisations Ltd) and the Export Grains Centre, and more recently NPZ Lembke (a German plant breeding company).


 

Links

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CV

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