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Most wild American grapevine species need urgent conservation help

Native Plants

The wine grapes and table grapes we eat today rely on wild grapevine cousins growing right now in Texas woodlands and Mexican hillsides to supply the disease resistance and climate toughness that keeps vineyards alive.

Researchers tracked down where 38 kinds of wild grapevines actually grow, from Canada down through Mexico into South America, and figured out what climates and terrain each one prefers. Turns out most of these wild vines aren't well protected, either in seed banks or in the wild parks and preserves where they naturally grow. That's a problem because these scrappy wild relatives carry genetic tricks, like drought tolerance or disease resistance, that plant breeders need to keep cultivated grapes healthy as growing conditions shift.

Key Findings

1

38 wild Vitis taxa were mapped across a range from southeastern Canada to southern Mexico, Guatemala, Belize, and parts of northern South America and the Caribbean

2

Central to southern Texas hosts up to 10 potentially overlapping (sympatric) wild grapevine taxa, the highest concentration found

3

25 of 38 taxa are urgent priority and 10 are high priority for improved seed bank (ex situ) conservation; 3 are urgent and 29 are high priority for improved habitat (in situ) protection

chevron_right Technical Summary

Scientists mapped 38 species of wild grapevines across the Americas and found that most are urgently in need of better conservation, since these wild plants hold genetic traits that could help future grape crops survive drought, disease, and changing climates.

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Abstract Preview

Original paper

Conservation gap analysis for wild grapevines ( <i>Vitis</i> L.) of the Americas

Societal Impact Statement Wild grapevines ( Vitis L.) native to the Americas are ecologically and culturally important plants that are also critical to the global cultivated grape industry as sourc...

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Abstract copyright held by the original publisher.

hub This connects to 11 other discoveries — Wild grapevine, Grape native-plants, climate-adaptation, crop-improvement +1 more 5 related articles

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