I haven’t yet had a chance to read the full FAO–WMO joint report on Extreme heat and agriculture, but some preliminary skimming reveals that agrobiodiversity does seem to be addressed, at least to some extent:
No mention of genebanks, mind you. I guess you can’t have everything, but you’d have thought the following snippets could easily have been used to make the case very explicitly for ex situ conservation of crop diversity.
For domesticated agricultural species, human influence on the genome through selective breeding for enhanced performance in increasingly homogenous production environments has resulted in a loss of natural genetic variability that have accentuated many species vulnerability to temperature extremes.
…
It is only through innovation and the implementation of adaptative measures (e.g.
selective breeding, making changes in the physical environment and altering management practices) that the global community can shelter agricultural activities from the larger forces of planetary human induced climate change.…
Switching to more resilient species to extreme heat may result in reduced genetic diversity, increasing the vulnerability of crops and livestock to large-scale losses due to a narrower genetic base.