Swamp cypress study challenges idea that ancient trees hold unique genetic value, but confirms their carbon storage role

A new study on the endangered Chinese swamp cypress finds that ancient trees do not carry unique genetic diversity compared to younger trees. The genetic variation is better explained by population demographics than by tree age, according to researchers at the University of British Columbia. The findings, published in Nature Plants, question the notion that old trees act as genetic storehouses for adaptive potential. However, the authors stress that ancient trees still matter for ecosystems and carbon storage. They are keystone structures in forests, cycling nutrients and providing habitats. Conservation should focus on preserving populations and habitats, not on the assumption that old trees are genetic archives. For critically endangered species like the swamp cypress, maintaining gene flow and protecting fragmented populations is more important than singling out ancient individuals.