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Background Brassica napus (AACC) is self-compatible, although its ancestor species Brassica rapa (AA) and Brassica oleracea (CC) are self-incompatible. Most B.napus accessions have dominant self-compatibility (SC) resulting from an insertion of 3.6 kb in the promoter region of BnSCR-1 on the A genome, while recessive SC in B.napus has rarely been observed. Expression and cloning of SRK and SCR genes...
A self-incompatible (SI) line, S-1300, and its maintainer 97-wen135, a self-compatible (SC) line, were used to study the inheritance of maintenance for self-incompatibility in B. napus. The ratio of SI plants to SC plants from S-1300 × 97-wen135 F2 and (S-1300 × 97-wen135) × 97-wen135 was 346:260 and 249:232, fitting the expected ratio of 9:7 and 1:1, respectively. Based on these observations, here...
Difficulty in propagating self-incompatible lines on a large scale limits the utilization of self-incompatibility in Brassica napus. The self-incompatible line S-1300 and its maintainer Bing409 were used in this study to develop molecular markers linked to the maintenance for the self-incompatibility of S-1300. The maintenance of Bing409 is controlled by one recessive gene. SLG-specific primer pairs...
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