As part of the development of the briefing paper “Yr UE GMO Polisïau, Ffermio Cynaliadwy ac Ymchwil Cyhoeddus" (2012) produced by public-sector scientists and farmers organisations, a survey was conducted among public research institutes active in agricultural biotechnology in Europe.
This survey resulted in a number of examples of public research slowed down, stopio neu symud dramor, oherwydd rhwystrau rheoleiddio cynyddol a chostau er mwyn atal dinistrio ymchwil maes:
- Awstria – Coed ffrwythau a gwinwydd - Resistance Feirws
- Gwlad Belg – Poplys – cyfansoddiad pren a newidiwyd
- Yr Almaen – Haidd ag ymwrthedd ffwngaidd- Jwstus-Liebig-y Brifysgol
- Yr Almaen – Ymchwil Fioddiogelwch- Prifysgol Aachen
- Yr Almaen – Pys – Pryfed a ffwngaidd Resistance Prifysgol Leibniz
- Yr Almaen – Petunia – planhigion transplastomic – Rostock
- Iwerddon – HT hadau rêp
- Yr Eidal - Ciwcymbr- Resistance Pryfed – Cyngor Sgiliau Sector
- Romania – Eirin - ymwrthedd firws
- Rwmania - Tatws- Resistance Pryfed
- Swistir – Gwenith – Resistance Ffyngau
- Twrci – Godog - Melon
- Twrci- Indrawn - ymwrthedd pryfed