Scientists say genetic analysis could greatly speed restoration of iconic American chestnut

Associated Press (AP)CenterEN 4 min read 100% complete by By  MICHAEL PHILLISFebruary 12, 2026 at 08:23 PM

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long article 4 min

A new study published in *Science* offers renewed hope for the restoration of the American chestnut tree, which was functionally extinct by the 1950s due to fungal blight and root rot. Researchers at The American Chestnut Foundation have found that genetic testing can identify trees most likely to resist disease and grow tall. This method aims to accelerate the breeding process, shortening the time needed to produce disease-resistant trees. The goal is to create a tree with the desirable traits of the American chestnut, such as its height and rapid growth, combined with the disease resistance of the Chinese chestnut. Scientists hope this will allow the American chestnut to once again thrive in its native range, stretching from Maine to Mississippi, within the coming decades.

Keywords

american chestnut 100% genetic analysis 80% disease resistance 70% restoration 70% root rot 60% fungal blight 60% chinese chestnut 50% genetic testing 50% genome 40%

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