Summary
Mitochondrial DNA (mtDNA) from fertile (N) and possibly new cytoplasmic male sterile (CMS) genotypes was studied in the sugar beet Beta vulgaris L. It was found by restriction endonuclease analysis that BMC-CMS, a cytoplasm that was derived from the wild beet Beta maritima, contained a unique type of mtDNA which is distinguishable from both the N and S-CMS, the only other CMS genotype that is currently availabe in B. vulgaris L. The organization of three genes: coxI, coxII and cob, was analyzed by hybridization with heterologous probes from maize. These genes have a similar structure in N and BMC-CMS that is different from S-CMS. It is concluded that BMC-CMS is a novel CMS genotype in the sugar beet.
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Communicated by P. Maliga
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Mann, V., McIntosh, L., Theurer, C. et al. A new cytoplasmic male sterile genotype in the sugar beet Beta vulgaris L.: a molecular analysis. Theoret. Appl. Genetics 78, 293–297 (1989). https://doi.org/10.1007/BF00288814
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DOI: https://doi.org/10.1007/BF00288814