SRP124596 PRJNA417544 Helianthus annuus cultivar:HA412-HO Transcriptome or Gene expression To investigate the molecular bases of arbuscular symbiosis in sunflower, we harvested roots from control and from 4 and 16 days inoculated roots. RNAs were isolated from root cells, with 3 biological replicates for each time point and treatment. RNA sequencing was performed with Illumina technology. Helianthus annuus cultivar:HA412-HO