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Thirty-two C-genome specific candidate bacterial artificial chromosome (BAC) clones were successfully screened from the BAC library by four-dimensional PCR method with the primer pairs of 75 simple sequence repeat (SSR) markers located in the nine C-genome linkage groups of Brassica napus. The screened 32 BAC clones have an average insert size of 114.2 kb with a range of 30-190 kb. They are the first set of C-genome BAC clones screened from B. napus genomic BAC library. The average insert size of this set of BAC clones presented that the constructed BAC library had a high quality. This set of BAC clones can be used as markers to identify individual chromosomes of B. napus C-genome.
Thirty-two C-genome specific candidate bacterial artificial chromosome (BAC) clones were successfully screened from the BAC library by four-dimensional PCR method with the primer pairs of 75 simple sequence repeat (SSR) markers located in the nine C-genome linkage groups of the Brassica napus. The screened 32 BAC clones have an average insert size of 114.2 kb with a range of 30-190 kb. They are the first set of C-genome BAC clones screened from B. napus genomic BAC library. The average insert size of this set of BAC clones presented that the constructed BAC library had a high quality. This set of BAC clones can be used as markers to identify individual chromosomes of B. napus C-genome.