CLASSIFICATION OF CYTOPLASMIC MALE STERILITY SYSTEMS IN RAPESEED (BRASSICA NAPUS AND BRASSICA CAMPESTRIS)

The test of the restoring and maintaining relationship between 10 different cytoplasmic male sterile (CMS) lines showed that Xin-4–2A, Xin-4–3A, Xin-4–4A, Ning 4A, AB1 and pol CMS line Xin-4–1A; S45A, Shanghai Green A and nap CMS line 5021A, have the same restorers and maintainers, respectively, but ogu CMS line P24 A has completely different restorers with pol CMS and nap CMS. The RFLP and mt DNA fragment polymorphism analysis showed that the cytoplasm of Xin-4–2A, Xin-4–3A, Xin-4–4A, Ning 4A and AB1 is the same as that of Xin-4–1A of pol CMS, and the cytoplasm of S45A and Shanghai Green A is the same as that of Westar S which has the cytoplasm of nap CMS. The cytoplasm of P24A is completely different from that of all CMS lines and their maintainers.
Therefore, we may conclude that: Xin-4–1A, Xin-4–2A, Xin-4–3A, Xin-4–4A, Ning 4A and AB1 are all pol CMS lines, S45A, 5021A, Westar S and Shanghai Green A are all nap CMS lines and P24A is a ogu CMS line.

International Symposium Brassica 97, Xth Crucifer Genetics Workshop

G.S. Yang, T.D. Fu, G.G. Brown

Brassica napus L., Brassica campestris L., Cytoplasmic Male Sterility, Restorer, Maintainer, Mitochondrial, DNA, RFLP, Polymorphism, Classification

https://doi.org/10.17660/ActaHortic.1998.459.31