A University of Newcastle-led global study has created the most detailed genetic map of Salicornia, a salt-tolerant plant known for its asparagus-like flavor and texture. Published in Nature Communications, the research sequenced the genomes of six Salicornia species, offering a foundation for developing crops that can grow in salty environments where traditional farming is difficult. Salicornia, sometimes called sea asparagus or samphire, is already consumed in parts of Europe, Asia, and North America. As climate change and population growth strain freshwater supplies, scientists believe salt-tolerant plants like Salicornia could help improve global food security. The five-year project involved 24 researchers from eight countries, working together to understand the genetic makeup of this promising crop. Starting at King Abdullah University of Science and Technology (KAUST) in Saudi Arabia, the team sequenced the complete genomes of six Salicornia species and analyzed DNA from 318 plants collected worldwide. The study identified genes related to salt tolerance, clarified the evolutionary relationships between species, and created seed collections for future breeding. This timing is crucial, as salt-induced land degradation costs billions annually in lost agricultural production, and freshwater scarcity is pushing researchers to explore new farming methods. The research builds on a previous study by Dr. Vanessa Melino, a plant scientist at the University of Newcastle and lead author of the new paper. In earlier work, she identified a key mechanism allowing Salicornia to survive extreme salinity by storing salt safely in its cells. This time, using advanced genomic technologies, the team scanned the entire genome to uncover a broader range of genes involved in salt tolerance. The findings revealed that salt tolerance is more complex than a single gene, with new candidate genes related to stress metabolism and salt sensing. These discoveries offer valuable targets for future breeding programs. The study also has implications for Australia, where strict biosecurity rules prevent the introduction of foreign Salicornia species. However, the research provides a roadmap for improving native Australian samphire, which are closely related to Salicornia. Dr. Melino emphasized that the knowledge gained could help adapt other crops to challenging growing conditions. She also highlighted the growing global interest in saline agriculture, which could open new farming opportunities using seawater and salt-affected soils. In Australia, saline wastewater from the Murray–Darling Basin could become a valuable resource for this kind of agriculture, reducing pressure on freshwater supplies.