Short legends for Supporting Information
Figure S1. Characterization of Mthsfa9 mutants.
Figure S2 Identification and characterization of MtHSFA9 downstream
(in)direct targets.
Figure S3. Survival curves of mature wild type (WT), associated WT
(assocWT) and Mthsfa9 seeds from different growth environments.
Figure S4. Effect of high temperature during seed development on seed
number, longevity and gene expression of HSP that are deregulated in
Mthsfa9 mutants
Figure S5. Water content and germination curves after aging at different
relative humidities (RH) of mature wild type (WT), associated WT
(assocWT) and Mthsfa9 seeds.
Figure S6. Deregulation of HSFA9 and two sHSP targets in Arabidopsishsfa9 mutants.
Figure S7. Seeds of M. truncatula Mthsfa9 Tnt1 insertion
mutants exhibit a dormancy phenotype.
Figure S8. MtHSFA9 does not bind to the promotor of MtNCED4.
Figure S9. Differential expression of ABA synthesis, degradation, and GA
inactivation genes in dormant and non-dormant Medicago truncatulawild type and hsfa9 seeds.
Supplemental Data S1. Network parameters from co-expression module
connecting seed-specific transcription factors to late maturation genes.
Supplemental Data S2. Differentially regulated genes in35S::MtHSFA9 hairy roots and Tnt1 insertion mutants of