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Potential uses of gene editing for primary industries

Royal Society Te Apārangi

For immediate release

Thursday 4 October

Potential uses of gene editing for New Zealand’s primary industries

Removing allergens from milk, making mānuka disease-resistant and preventing wilding pines are some potential future uses of gene editing in New Zealand if we choose to utilise this new technology.

They are among the potential uses explored in the Royal Society Te Apārangi’s new discussion paper ‘The use of gene editing in the primary industries’, released today. The paper outlines the relevant considerations, risks and potential benefits for five scenarios of how gene editing could be used for primary production sectors including agriculture, forestry and horticulture.

It’s part of the Society’s larger Gene Editing in Aotearoa project, for which a multidisciplinary expert panel and reference group have been brought together to explore the wider social, cultural, legal and economic implications of gene editing in New Zealand, incorporating Māori perspectives and broader cultural contexts.

“Gene editing techniques will allow more targeted and precise genetic changes than what has been possible before in crop and livestock breeding,” says Professor Barry Scott, Professor of Molecular Genetics at Massey University and co-chair of the expert panel.
“It’s a good time for New Zealanders to consider what gene editing could offer our primary industries and how they’d feel about its use.

“One potential application of gene editing is to speed up the time it takes to produce new apple varieties. New Zealand is known internationally for our apples and there is strong commercial pressure to develop new and improved varieties but the process is slow, because it can take five years before any fruit is produced to start the evaluation and testing of potential new apple varieties.

“Gene editing could offer the opportunity to temporarily remove the gene that slows down flowering – so the trees would flower in eight months instead of five years. Once a new variety of apple with desirable characteristics had been selected, traditional plant breeding would reintroduce the genes that slow down flowering. This means the resulting trees sold to growers would not contain any of the gene editing changes, but would have been introduced to the market much faster than by using existing breeding methods.”

Another scenario the paper discusses is using gene editing to make mānuka resistant to disease. “Myrtle rust and kauri dieback disease have got people thinking about what we can or should do to conserve our native taonga species,” says lawyer and panel member Irene Kereama-Royal, who is also a research partner at Unitec.

“Extracts of leaves and bark from mānuka have been used for centuries by Māori and, with the growth in the mānuka honey industry, mānuka is now an important plant for New Zealand both culturally and economically. Should we use gene-editing to create new varieties of mānuka that are resistant to disease?”

A third scenario is to use gene editing to make exotic conifer trees, such as Douglas fir, sterile. “Wilding trees are a big problem in New Zealand. Not only do they outcompete native species, they invade and modify unique natural ecosystems, are costly to remove and can contribute to pollen allergies,” says Dr Phil Wilcox, Senior Lecturer in statistics at University of Otago and a member of the expert panel, who has over 30 years experience in forestry research.

"Gene editing could halt the production of cones and pollen in these species, which would mean that when these trees are planted for forestry, shelter belts, or to help prevent erosion or climate change, they wouldn’t escape into places where they are not wanted.”

How do New Zealanders feel about using gene editing for this? The Society encourages them to consider this and the four other scenarios and let the panel know.

Feedback should be sent to marc.rands@royalsociety.org.nz.

Three workshops are being held around the country to discuss the potential use of gene editing in the primary industries with the panel and reference group members:

Hamilton | Wednesday 10 October, 9:45am - 2:30pm, The Verandah, Rotoroa Drive, Hamilton Lake

Napier | Monday 15 October 9:45am - 2:30 pm, Napier Conference Centre, Exhibition Room, 48 Marine Parade

Dunedin | Tuesday 23 October 10:00am - 2:30 pm, The Dunedin Centre, Fullwood Room, 1 Harrop St

This discussion paper is the third in a series, which includes papers exploring the potential use of gene editing for human health and pest control in New Zealand. All resources are available online at royalsociety.org.nz/gene-editing



Background information


About Royal Society Te Apārangi

Royal Society Te Apārangi is an independent not-for-profit organisation that supports all New Zealanders to explore, discover and share knowledge.

Its varied programmes provide funding and learning opportunities for researchers, teachers and school students, together with those who are simply curious about the world.

To celebrate the discoveries of New Zealand researchers, the Society awards medals and elects Fellows, who are leaders in their fields.

These experts help the Society to provide independent advice to New Zealanders and the government on issues of public concern.

The Society has a broad network of members and friends around New Zealand and invites all those who value the work New Zealanders do in exploring, discovering and sharing knowledge to join with them.

To discover more visit royalsociety.org.nz

ends

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