The SSP Gene Expression Atlas in M. truncatula hosts a rich RNA-seq data from diverse biological conditions, such as macronutrient deficiencies, nodule development, salt stress, symbiotic interactions and different plant tissues (root, leaf, leaf bud, pod, flower, petiole, and bare stalk) of 421 samples from 125 conditions and 13 experiments. SSP GEA allows you to query for the expression levels of your gene(s)/transcript(s) of interest, and also analyze the expression or co-expression and visualize the results by line or bar graphs. Users can download the relevant data and results by choosing the output format (table or graphs). SSP-GEA provides a complete and an update transcriptomic profiles in M. truncatula with different analytical tools.
SSP Gene Expression Atlas is available here. For any questions and comments about the SSP project, please contact the principal investigator of the project - Dr. Wolf Scheible ( or the Co-PI - Dr. Patrick Zhao ( from Noble Research Institute. For questions and suggestions regarding the Web Server, please contact site administrator.


In total, there are 13 RNA-seq experiments datasets. These 13 experiments are represented by 421 samples and 125 conditions.
Experiment Samples Source
Macronutrient Deficiencies 1 24 published data from de Bang et al. 2017
Macronutrient Deficiencies 2 6 published data from de Bang et al. 2017
Nodule Development 1 7 published data from de Bang et al. 2017
Nodule Development 2 12 published data from LIPM-INRA-CNRS
Nodule Development 3 36 published data from UCDAVIS
Salt Stress 8 Noble Research Institute, LLC
Symbiotic Interactions 1 3 published data from LIPM-INRA-CNRS
Symbiotic Interactions 2 4 published data from Garcia et al. 2017
Symbiotic Interactions 3 4 published data from Jardinaud et al. 2016
Symbiotic Interactions 4 12 published data from Luginbuehl et al. 2017
Symbiotic Interactions 5 12 published data from Zeijl et al. 2015
Plant Tissues 9 Noble Research Institute, LLC
Hormone Treatment 9 Noble Research Institute, LLC