Inside Institut National de la Recherche Agronomique de Tunisie's largest research partnership: Islamic Azad University, Tehran

Behind Institut National de la Recherche Agronomique de Tunisie's research output sits a defining relationship: 90 co-authored works with Islamic Azad University, Tehran (Iran) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 270 collaborating institutions across 49 countries, producing 14,405 joint works over the window, with international co-authors on 4% of output.

The collaborative work travels: its field-weighted citation impact stands at 0.15, where the world average is 1.0.

The Research Collaboration Index, the first global account of how universities actually collaborate, publishes its first full edition on Tuesday 15 September at 09:00 UK.

Every figure derives from the open global research record and is checkable at source.