**26. New defense gene**

The SbPRP gene putatively encodes a bimodular protein with 126 amino acids similar to de‐ velopmentally regulated proteins in other plants. It has a distinct proline-rich domain (17

amino acids) and a long hydrophobically cysteine-rich domain (84 amino acids). Its steadystate mRNA level accumulated differentially in response to salicylic acid, and to the inocula‐ tion of soybean mosaic virus Sa strain. It responded to drought treatment and salt stress. It appears that SbPRP plays a defense role in soybean [29].
