Table 1. Environmental conditions differentially associate with major chemotypes across geographic location.

Linear model for the two major chemotypes, Allyl and 2-OH-3-Butenyl, was conducted with the indicated environmental parameters, for the northern and southern collection, separately (for more details, see Methods). The table shows p values for each term from the linear model. For the interaction with geography, the linear model was run using the total dataset, and the geography parameter (north or south) was added to the model.

Environmental parameter	Effect on chemotype – north	Effect on chemotype – south	Interaction with geography
Genomic group	<0.0001	<0.0001	<0.0001
Max temperature of warmest month	0.0382	<0.0001	0.3574
Min temperature of coldest month	0.0007	<0.0001	0.0049
Precipitation of wettest month	0.1645	0.0003	0.0094
Precipitation of driest month	0.0665	0.2026	0.47425
Distance to the coast	0.2781	0.02680	0.1279