Fruit tree genes could predict which orchards survive climate change
Criado M, Brisson M, Alix K, Bourgeois YXC, François O
Climate Adaptation
The apple, olive, or almond tree in your yard carries genetic clues about whether it can handle the hotter, drier summers headed its way, and this research maps out how to read them.
Fruit and nut trees like apples, olives, and almonds live for decades and are often cloned rather than grown from new seeds each generation, which makes it harder for them to naturally adapt to fast climate shifts. Researchers argue these trees are actually great test subjects for a technique called genomic offset, which compares a tree's current genes to the genes that would work best under future climate conditions. If perfected, this could let growers and conservationists spot mismatches early and choose better-suited varieties before trees start failing.
Key Findings
Genomic offset analysis estimates the mismatch between a tree's current genetic makeup and the genetic profile predicted to be optimal under future climate conditions
Fruit trees combine long generation times, clonal propagation, and intensive management with growing genomic resources and common-garden networks, making them well-suited test cases
The approach is already expanding in annual crops and forest trees but still needs stronger empirical validation, which Mediterranean and temperate fruit tree species could provide
chevron_right Technical Summary
Scientists propose using fruit and nut trees, like apples and olives, as models to predict which trees will struggle as the climate changes, by comparing their genetic makeup to what future conditions will demand. This could help breeders and conservationists get ahead of crop failures before they happen.
Abstract Preview
Original paper
Genomic forecasting for climate-resilient fruit trees.
Fruit trees - long-lived perennial crops cultivated for their edible fruits or nuts and frequently propagated clonally - are increasingly exposed to climate extremes that threaten their productivit...
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Crop-improvement refers to the systematic enhancement of plant varieties through selective breeding, genetic modification, and biotechnological approaches to develop cultivars with superior agronomic, nutritional, or environmental traits. This field is essential for addressing global food security,
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