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This article was originally published by GenomeAtlantic in July, 2025. We are sharing the full text here for reference. All rights remain with the original publisher. 

Opening message from Steve Armstrong, our President & CEO, on how genomics is helping turn the tide on oyster disease. 

Fighting Back with Disease-Resistant Oyster Seed 

When MSX was first detected in P.E.I.’s Bedeque Bay in July 2024, alarm bells rang across Maritime Canada’s oyster sector. Now confirmed in New Brunswick too, the parasite threatens a regional industry valued at $58 million in P.E.I. alone. For Dr. Martin Mallet, co-owner of L’Étang Ruisseau Bar Ltée (ERB)/Mallet Oysters in Shippagan — the Maritimes’ largest oyster seed supplier — the best line of defence is clear: selective breeding powered by genomics. Genome Canada recently announced a $3.1M Genome Atlantic project  to support this work and put MSX-resistant seed in the hands of growers, faster.  Check out our press release and video interview with Dr. Mallet who is co-leading this initiative.

Genomics – a Multi-Front Defence against MSX

Genomics-driven selective breeding is key to developing MSX-resistant oyster seed — a vital long-term solution for the industry. But genomics is also being deployed for short-term solutions.  Through Genome Canada’s $800,000 eDNA Surveillance Initiative, Genome Atlantic is leading a regional project to develop early detection tools for MSX and Dermo in oyster-growing areas. Check out our video and news release about the project.

Science Meets tradition to revive Bras d’Or Lake Oyster Fishery:

In Cape Breton’s Bras d’Or Lake, a genomics-powered comeback is underway. Biologist Dr. Rod Beresford is working with First Nations groups and other local experts to combine cutting-edge science with traditional knowledge in a bid to revive oyster operations devastated by MSX disease more than 20 years ago. With support from Genome Atlantic and others, Dr. Beresford is developing rapid detection tools using eDNA and exploring new growing methods – offering fresh hope for the industry and drawing strength from the insights of those who know the lake best. Check out our video and article to find out more.

Source: GenomeAtlantics. Original article available here.