Three ncw CMS sources, ANT-1, Pet-2, ANN-1, are studied. B and R.lines for CMS of Pet-1 type are included in the investigation. The results show that the three new sources are different from the French type Pet-1. Differences are also present between the new CMS types. In ANT-1 and ANN-1 one and the same line appears as the maintainer of the two types. Restorers for CMS of ANT-1 and ANN-1 types from the lines used in the study are not found. In CMS of Pet-2 type the fertility is restored only by line RCMG-1. It is supposed that the complementary performance of two nonallelic genes controls the fertility restoring in CMS of Pet-2 type.