1. Table S1. List of primers used for the amplification of DNA fragments that were used as probes for Northern blot analysis. Primer nameSequence 5`-3`cDNA Product size (bp) Accession number Gene AtNPR1-FGAGGACACACTGGTTATACTC691EF470707non- expressor of PR1 (NPR1) AtNPR1-RCCAGATCGAGCAGCGTCATCTT PR1-FTGCCCAAGACTCACAACAAG238CK988133.1Putative PR1 PR1-RGGCCTTCTCATTAACCCACA PR10-FTACTATTGAAGCCGCCAAGG399AF305067PR10 PR10-RTCGGGATTAGCCAAGAGGTA Thaumatin-FCAAGCTTGTTGGGTCATCCT357DN828172Thaumatin like Thaumatin-RGTCCTCGAATGCAAGGGATA Glucanase-FCATTGATATGACCTTGATCG173CD486342Glucanase Glucanase-RGTGAGATATCCCTTGGATTG CAD1C-FATAAGGATGAAATGCGTCC433AF270425.1(+)-Delta- cadinene synthase CAD1C-RGAAGCTTGGTAAAGTTCCA LOX1-FGCATGGAGGACTGATGAAGAGTT1060AF361893Pathogen induced lipoxygenase LOX1-RGACTGGAAGGCTGAAGCCACCCATAT Chitinase-FACCAAGCTACTCGCAAGAGG156CD485880Chitinase Chitinase-RCGGAAGCGCAGTAAGATGA POD10-FCACTGTTTCCTGCGCTGATA413ES831865Peroxidase POD10-RCGAAACCATCAGGTGTTGTG MIC3-FTACCAAGGTGCTCCGGTAAC290GQ231922MIC3 MIC3-RGGGCTGAAGGATGCTCACTA GST13-FTTTTTGGATACTGGGCAAGC566DT464022Glutathione S-transferase GST13-RGCTGCAATTTGCGAAATCTT

2. Primer name Sequence 5`-3`cDNA Product size bp Accession number Gene OXRED-FAATTGAGTTCCCAGCCATT495CO123294Oxidoreductase OXRED-RTATTTCATCATCCGCACCAA MPD-FTGGACATAAGGGCAAAAAGG635CO118999Mevalonate Pyrophosphate Decarboxylase MPD-RTGCAAAATTAGCCTGTGCTG HIST3-FGAAGCCTCATCGATACCGTC412AF024716Histone 3 HIST3-RCTACCACTACCATCATGGC Table S1. (Continued)

3. Fig. S1. Disease severity in wild-type (WT) and transgenic cotton plants expressing AtNPR1 gene, one month following inoculation with Thielaviopsis basicola. The image shown is at the termination of experiment #2 conducted under growth chamber conditions.

4. ** Fig. S2. Resistance to Thielaviopsis basicola in transgenic cotton lines (#68L-19, #68L-20, and #68L-5) expressing AtNPR1. WT: wild-type. Shoot weight was used as a parameter to score disease-severity in experiment #2, conducted under growth chamber conditions, one month following inoculation with the pathogen. Data represent mean±SE, **P<0.01; n=10.

5. ** * * Fig. S3. Resistance to Thielaviopsis basicola in transgenic cotton lines (#68L-19, #68L-20, and #68L-5) expressing AtNPR1. WT: wild-type. Root weight was used as a parameter to score disease-severity in experiment #2, conducted under growth chamber conditions, one month following inoculation with the pathogen. Data represent mean±SE, *P<0.05, **P<0.01; n=10.

6. *** * Fig. S4. Resistance to Thielaviopsis basicola in transgenic cotton lines (#68L-19, #68L-20, and #68L-5) expressing AtNPR1. WT: wild-type. Chlamydospore count was obtained from the roots of WT and transgenic cotton plants, one month following inoculation with the pathogen in experiment # 2. Data represent mean±SE; *P<0.05, ***P<0.001; n=3; each replicate is a representative sample obtained from roots pooled from 3-4 infected plants.

7. WT 68L-20 WT 68L-20 Uninfected Infected Fig. S5. Stunting of growth caused by Thielaviopsis basicola in wild-type (WT) and transgenic cotton plants expressing AtNPR1 gene. The image depicted is of plants three months following inoculation with the pathogen from experiment #4 conducted under greenhouse conditions.