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  • 1
    Electronic Resource
    Electronic Resource
    Mitochondrial DNA of cytoplasmic male-sterile Triticum timopheevi: rearrangement of upstream sequences of the atp6 and orf25 genes (1993)
    Springer
    Theoretical and applied genetics 86 (1993), S. 259-268 
    Details
    ISSN: 1432-2242
    Keywords: Wheat mitochondrial DNA ; atp6 and orf25 genes ; Cytoplasmic male sterility ; timopheevi cytoplasm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The organization of mitochondrial DNA (mtDNA) and transcript patterns of the atp6 and orf25 genes were examined in cytoplasmic male-sterile (CMS) and fertile Triticum lines. Major differences are observed between CMS T. timopheevi and fertile T. aestivum for both mitochondrial genes. The T. aestivum mt genome carries two atp6 gene copies, whereas only a single copy of the atp6 gene is present in T. timopheevi mtDNA. Sequence data suggest that identical sequences upstream of the atp6 gene and the orf25 gene are involved in homologous recombination in both cytoplasms. The differences in the upstream sequences of the atp6 or the orf25 genes affect transcript sizes in both cytoplasms. Transcription initiation may occur at conserved promoter elements located at variable distances upstream of the aminoacid coding sequences. The correlation between the gene rearrangements and the CMS phenomenon in T. timopheevi is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222087
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  • 2
    Electronic Resource
    Electronic Resource
    An extended map of the sugar beet genome containing RFLP and RAPD loci (1995)
    Springer
    Theoretical and applied genetics 90 (1995), S. 189-193 
    Details
    ISSN: 1432-2242
    Keywords: Sugar beet ; Beta vulgaris ; RFLP ; RAPD
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract An updated map of sugar beet (Beta vulgaris L. ssp. vulgaris var ‘altissima Doell’) is presented. In this genetic map we have combined 248 RFLP and 50 RAPD loci. Including the loci for rhizomania resistance Rr1, hypocotyl colour R and the locus controlling the monogerm character M, 301 loci have now been mapped to the nine linkage groups covering 815 cM. In addition, the karyotype of some of the Beta vulgaris chromosomes has been correlated with existing RFLP and RAPD linkage maps.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222201
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    Paper (German National Licenses)
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