🛠️ Invention or technique

Virus-resistant transgenic papaya

Papaya transgénica resistente al virus de la mancha anular

Date
1998 · confidence high
Place
Hilo, Hawaii, United States
Credited to
Dennis Gonsalves and colleagues at Cornell and the University of Hawaii
Field
Life & health

What it is

A papaya variety engineered with the coat protein gene of the papaya ringspot virus (PRSV), which gives it resistance through gene silencing. It was released to Hawaiian farmers in 1998 and saved the islands' papaya industry.

It is one of the first transgenic crops developed by a public university. It is considered a success in fighting a virus through genetic engineering.

What it led to

  • commercial cultivation of transgenic papaya in Hawaii and its approval in Japan and Canada
  • pathogen-derived resistance as a breeding strategy
  • a reference case in the debate on GMOs

Links

Sources✓ verified 2026-11-04