Emeritus Professor Peter Koopman is one of Australia’s internationally recognised developmental geneticists. His research helped identify the gene responsible for initiating male development in mammals, a discovery regarded as one of the major breakthroughs in twentieth-century molecular genetics.

Behind his scientific achievements lies a remarkable Dutch-Australian family story. Born in Geelong in 1959 and raised in Torquay, Victoria, Peter was the youngest child of Dutch migrants Cornelis and Anna Koopman, who had arrived in Australia in 1951.

His life illustrates how the opportunities created by post-war migration could extend across generations, connecting the experiences of Dutch families rebuilding their lives in Australia with achievements in science, education and international research.

A Dutch family establishes itself in Torquay

Peter’s parents, Cornelis and Anna Koopman, married in the Netherlands in 1943, during the German occupation.

Like many Dutch families after the Second World War, they faced difficult economic circumstances and wanted to provide better opportunities for their children.

In June 1951, they travelled to Australia aboard the Sibajak with their three young children.

Their migration was unusual because Cornelis had dismantled the family home in the Netherlands and shipped its components to Australia, together with a Wolseley motor car.

After initially settling in Yarragon, Victoria, the family moved to Torquay in 1952. Cornelis rebuilt their house in Beales Street, where the family established itself in the small but growing coastal community.

Cornelis worked in several occupations, including mechanical repairs, cartage, the Geelong Harbour Trust and the Country Roads Board. Anna maintained the family home and strong friendships with other Dutch migrants in the region.

The family also contributed to Torquay’s development. Cornelis assisted neighbours with practical building and maintenance work and participated in constructing the local Catholic church.

The couple eventually had four children: Catharina, Cees, Marianne and Peter.

Peter was born in Geelong on 3 December 1959, eight years after his parents had arrived in Australia.

The family retained connections with its Dutch heritage, although the children grew up within the Australian education system and local community.

Their experiences were recorded in an interview conducted by fellow Dutch migrant Josie Wepster and published in The Turn of the Tide in 1999. The account was republished in History Matters, the magazine of Torquay Museum Without Walls, in September 2026.

The wider family story is documented in the DACC article Dutch Pioneers of Torquay – From Post-War Migration to a New Life on Victoria’s Surf Coast.

From Torquay to university

Peter grew up in Torquay and attended Oberon High School in Geelong.

He continued his education at the University of Melbourne, studying biochemistry, genetics and botany. He completed a Bachelor of Science, followed by honours studies in genetics.

His intellectual interests extended beyond science. He also studied fine arts and Dutch language and literature, completing a Bachelor of Arts in 1985.

This interest in Dutch language and literature is a particularly noteworthy aspect of his Dutch-Australian background. Although born and educated in Australia, Peter maintained a connection with his family’s country of origin through his academic studies. His published curriculum vitae also records that he holds both Australian and Dutch citizenship.

These details add another dimension to his family’s migration story. While his parents established their lives in Australia after leaving the Netherlands in 1951, their youngest son pursued an international scientific career while retaining a documented interest in his Dutch heritage.

In 1986, he received his PhD from the University of Melbourne for research into stem-cell differentiation. His doctoral work examined how cells acquire specialised functions during development, an area that would become central to his subsequent scientific career.

After completing his doctorate, Koopman moved to London to undertake postdoctoral research with the United Kingdom’s Medical Research Council.

He initially worked with the distinguished developmental biologist Anne McLaren, investigating mammalian embryo development.

He subsequently joined the laboratory of Robin Lovell-Badge at the National Institute for Medical Research, where he became involved in research that would lead to an internationally significant discovery.

Discovering the gene that initiates male development

For decades, scientists had known that the Y chromosome played a central role in determining whether a mammalian embryo developed testes, but the precise genetic mechanism remained uncertain.

During the late 1980s and early 1990s, researchers sought to identify the gene responsible for initiating this process.

Koopman was part of an international research effort to identify the genetic mechanism responsible for initiating testis development in mammals.

In July 1990, two landmark papers appeared in the scientific journal Nature.

The first, led by Andrew Sinclair and colleagues, reported the identification of a gene in the human Y chromosome’s sex-determining region, subsequently known as SRY:

Sinclair et al. (1990), “A gene from the human sex-determining region encodes a protein with homology to a conserved DNA-binding motif,” Nature, 346, 240–244.

The second, co-authored by Koopman, identified the corresponding gene in mice and provided important evidence of its role in embryonic development:

Gubbay, Collignon, Koopman et al. (1990), “A gene mapping to the sex-determining region of the mouse Y chromosome is a member of a novel family of embryonically expressed genes,” Nature, 346, 245–250.

The decisive experimental confirmation followed in May 1991. In a paper with Koopman as first author, the research team demonstrated that introducing the Sry gene into chromosomally female mouse embryos could initiate testis development and produce male characteristics.

Koopman, Gubbay, Vivian, Goodfellow and Lovell-Badge (1991), “Male development of chromosomally female mice transgenic for Sry,” Nature, 351, 117–121.

This experiment provided compelling evidence that Sry was the gene responsible for initiating testis determination in mammals.

The findings transformed scientific understanding of sex determination and opened new avenues for research into embryonic development, reproductive biology and differences of sex development.

Koopman’s role in the discovery, particularly as lead author of the 1991 experimental paper, established his international scientific reputation.

Building an international research career in Australia

In 1992, Koopman returned to Australia to establish a research group at the University of Queensland in Brisbane.

His research expanded from the initial discovery of Sry to the wider genetic networks responsible for controlling embryonic development.

He and his colleagues investigated the SOX family of genes, several members of which regulate the development of important organs and tissues.

Among these was SOX9, a gene involved in skeletal development and testis formation.

Other investigations contributed to understanding the formation of blood vessels, the lymphatic system and the reproductive organs.

Koopman’s research also explored fertility, gonadal cancers and differences of sex development.

In 2006, a University of Queensland research team led by Josephine Bowles and Koopman reported important findings concerning the role of retinoic acid, a derivative of vitamin A, in regulating the onset of meiosis in developing reproductive cells.

The findings helped explain an important difference in the timing of egg and sperm development.

Together, these investigations contributed to a broader understanding of how genes and molecular signals coordinate the formation of the developing embryo.

Recognition by the scientific community

Koopman’s achievements have received extensive national and international recognition.

He received the Julian Wells Medal in 1998, a major Australian biochemistry and molecular biology medal in 2003, and the GlaxoSmithKline Award for Research Excellence in 2007.

Between 2007 and 2012, he held an Australian Research Council Federation Fellowship.

In 2008, he was elected a Fellow of the Australian Academy of Science, one of the country’s highest scientific honours.

His contributions extended beyond laboratory research. He helped train generations of scientists, participated in international scientific publishing and contributed to research leadership and governance.

He also co-founded the Australian Developmental Biology Workshop in 2001, helping provide specialist training for younger researchers.

In 2024, the Australian Academy of Science awarded him the Suzanne Cory Medal in recognition of his outstanding career in molecular genetics.

By that time, his scientific output included more than 300 research publications, and his work had attracted approximately $56 million in competitive research funding.

He also served as the University of Queensland’s inaugural Executive Director of Research Ethics and Integrity, reflecting his wider commitment to scientific standards and responsible research.

A Dutch-Australian contribution to international science

Peter Koopman’s career represents an important example of the achievements of the second generation of Dutch migrants in Australia.

His parents arrived in the early post-war years, bringing with them their family, practical skills and determination to establish a better life.

Their initial years were marked by uncertainty, difficult living conditions and the challenge of adapting to a new country.

Within a generation, their youngest son had completed advanced university studies, participated in a major international scientific discovery and established a distinguished research career in Australia.

The story also highlights the importance of education in the history of Dutch migration.

For families such as the Koopmans, migration was not simply a matter of finding employment or establishing a home. It was also an investment in the opportunities available to their children.

Peter Koopman’s scientific achievements form part of that wider Dutch-Australian story.

From a modest family home transported across the world to pioneering research into the genetic foundations of life, the Koopman family’s experience illustrates the lasting contribution of Dutch migrants and their descendants to Australian society.

Sources and further reading

Family history and migration

Scientific career and recognition

Landmark scientific publications in Nature

Acknowledgement

The Dutch Australian Cultural Centre acknowledges Torquay Museum Without Walls and the original interviewer, Josie Wepster, for preserving the migration story of Cornelis and Anna Koopman, providing valuable context for their son’s subsequent scientific achievements.