Classification of cytoplasmic male sterility systems in rapeseed (Brassica napus and Brassica campestris)

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

Acta Horticulturae 459: 275-279

1998


ISSN/ISBN: 0567-7572
DOI: 10.17660/actahortic.1998.459.31
Accession: 003068532

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Abstract
The test of the restoring and maintaining relationship between 10 different cytoplasmic male sterile (CMS) lines of rape (B. napus) and turnip rape (B. campestris) 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. RFLP and mtDNA 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 (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 an ogu CMS line.