You can do it is cross genetic male sterility-line on CMS line. 

There are some studies of GMS/CMS interaction, such as THE ANALYSIS ON INTERACTION BETWEEN GMS AND CMS GENETIC SYSTEM (http://www.regional.org.au/au/gcirc/4/574.htm)

"The results showed that there was a pair of recessive major sterile genes in L17A and San2A, and three pairs of recessive major sterile genes in CMS+GMS double sterile line GCDA, but there was some linkage relationship found between CMS s1 gene and one of two GMS m1m2 genes. At the same time, genetic interaction of the sterile genes between CMS and GMS have been found through comparing Polima CMS with CMS+GMS double sterile line .some differences in genetic model and gene effect between Polima CMS and San2A CMS are found too."

thank you sir, but my question is can we convert a GMS line into a CMS line where there is no available source of CMS in its species.