Aarva

The Conversation ·Future-gazing

New Genetic Approaches Raise Hopes for Restoring the American Chestnut to Its Former Glory

by Steve Strauss, University Distinguished Professor of Forest Biotechnology, Oregon State University

Published 2026-07-22 12:29:02+00:00

Could a new way of reading DNA bring a lost forest giant back to the woods?

0:00 / 9:15 · Narrator Charon

Context

The Appalachian woods still hold the skeletons of the American chestnut, a tree that once fed entire ecosystems before a 1904 blight turned it into a ghost. In this piece from 22 July 2026, the search for a survivor moves from the forest floor to the lab, where researchers are leaving behind a failed genetic experiment to try more precise genomic tools. The story asks if a tree can be engineered to survive, and whether regulations and nature itself will actually allow an iconic species to make a comeback.

Show notes

Efforts to restore the American chestnut tree now rely on genomic science to overcome a century of fungal blight. Researchers use DNA segments to predict resistance in young trees and gene-editing tools to modify specific traits. These methods face technical challenges in the lab as well as government regulations and market rules that limit where modified trees can grow.

Read on The Conversation →