 This study used solexa sequencing to identify and characterize micro-ionase, myrnase, in soybean plants undergoing water deficit and rust stress. The authors found 256 myrnase, including 24 families of novel myrnase, six families of conserved myrnase, and 22 families previously reported in soybean. They also observed the presence of several isomyionase during their analyses. Furthermore, they validated the expression patterns of these myrnase by performing quantitative reverse transcriptase polymerase chain reaction, a TQPCR. Their results suggest that myrnase may be involved in the processes of water deficit and rust stress responses in soybean. This article was authored by Nassumento Leandroci, Abdel Norocadovi, Mussolino-Gemorez, Francis Marci, and others.