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  • RFLP
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  • 1
    Electronic Resource
    Electronic Resource
    RFLP maps of potato and their alignment with the homoeologous tomato genome (1991)
    Springer
    Theoretical and applied genetics 83 (1991), S. 49-57 
    Details
    ISSN: 1432-2242
    Keywords: RFLP ; Potato ; Tomato ; Genetic maps
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary An RFLP linkage map of the potato is presented which comprises 304 loci derived from 230 DNA probes and one morphological marker (tuber skin color). The self-incompatibility locus of potato was mapped to chromosome I, which is homoeologous to tomato chromosome I. By mapping chromosome-specific tomato RFLP markers in potato and, vice versa, potato markers in tomato, the different potato and tomato RFLP maps were aligned to each other and the similarity of the potato and tomato genome was confirmed. The numbers given to the 12 potato chromosomes are now in accordance with the established tomato nomenclature. Comparisons between potato RFLP maps derived from different genetic backgrounds revealed conservation of marker order but differences in chromosome and total map length. In particular, significant reduction of map length was observed in interspecific compared to intraspecific crosses. The distribution of regions with distorted segregation ratios in the genome was analyzed for four potato parents. The most prominent distortion of recombination was found to be caused by the self-incompatibility locus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00229225
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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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  • 3
    Electronic Resource
    Electronic Resource
    Identification of 2n breeding lines and 4n varieties of potato (Solanum tuberosum, ssp. tuberosum) with RFLP-fingerprints (1989)
    Springer
    Theoretical and applied genetics 78 (1989), S. 16-22 
    Details
    ISSN: 1432-2242
    Keywords: RFLP ; Potato ; Fingerprint ; Variety identification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The possibility of genotype identification with RFLP fingerprints was examined with 20 tetraploid potato varieties and 38 diploid potato lines. By using a sensitive detection system for small restriction fragment length differences and highly variable potato sequences as probes, all genotypes (diploids and tetraploids) were distinguished by a minimum of two probe/enzyme combinations. The best single probe/enzyme combination distinguished 19 out of 20 4n varieties and 33 out of 38 2n lines. Intravarietal variability was very small compared to the intervarietal variability, and patterns obtained with different DNA sources of the same genotype were identical.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00299747
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  • 4
    Electronic Resource
    Electronic Resource
    RFLP analysis and linkage mapping in Solanum tuberosum (1989)
    Springer
    Theoretical and applied genetics 78 (1989), S. 65-75 
    Details
    ISSN: 1432-2242
    Keywords: Solanum tuberosum ; RFLP ; Linkage map
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A morphologically and agronomically heterogeneous collection of 38 diploid potato lines was analysed for restriction fragment length polymorphisms (RFLPs) with 168 potato probes, including random genomic and cDNA sequences as well as characterized potato genes of known function. The use of four cutter restriction enzymes and a fragment separation range from 250 to 2,000 bases on denaturing polyacrylamide gels allowed the detection of RFLPs of a few nucleotides. With this system, 90% of all probes tested showed useful polymorphism, and 95% of those were polymorphic with two or all three enzymes used. On the average, 80% of the probes were informative in all pairwise comparisons of the 38 lines with a minimum of 49% and a maximum of 95%. The percentage of heterozygosity was determined relative to each other for each line and indicated that direct segregation analysis in F1 populations should be feasible for most combinations. From a backcross involving one pair of the 38 lines, a RFLP linkage map with 141 loci was constructed, covering 690 cMorgan of the Solanum tuberosum genome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00299755
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  • 5
    Electronic Resource
    Electronic Resource
    Identification of RFLP markers closely linked to the H1 gene conferring resistance to Globodera rostochiensis in potato (1993)
    Springer
    Theoretical and applied genetics 85 (1993), S. 541-544 
    Details
    ISSN: 1432-2242
    Keywords: Potato ; G. Rostochiensis ; RFLP ; Marker
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Resistance to the root cyst nematode Globodera rostochiensis is an agronomic trait that is at present incorporated into most new potato varieties. Major dominant genes are available that originate from wild and cultivated Solanum species closely related to the cultivated European potato (Solanum tuberosum ssp. tuberosum). One of those genes, H1, from S. Tuberosum ssp. andigena, was mapped to a distal position on potato chromosome V using restriction fragment length polymorphism (RFLP) markers. The H1 locus segregates independently from Gro1, a second dominant gene presumably from S. Spegazzinii that confers resistance to G. Rostochiensis and which has been mapped to chromosome VII. One marker, CP113, was linked without recombination to the H1 locus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220911
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  • 6
    Electronic Resource
    Electronic Resource
    RFLP mapping on potato chromosomes of two genes controlling extreme resistance to potato virus X (PVX) (1991)
    Springer
    Molecular genetics and genomics 227 (1991), S. 81-85 
    Details
    ISSN: 1617-4623
    Keywords: Potato virus X ; Resistance genes ; RFLP ; Solanum tuberosum ; Genetic introgression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two different chromosomal locations of major genes controlling extreme resistance to potato virus X (PVX) were found by restriction fragment length polymorphism (RFLP) analysis of two populations segregating for the resistance. The resistance geneRx1 mapped to the distal end of chromosome XII, whereasRx2 was located at an intermediate position on linkage group V in a region where reduced recombination and segregation distortion have also been observed. These linkage anomalies were due to abnormal behaviour of the chromosome contributed by the resistant parent P34. The results presented were obtained using two different strategies for mapping genes of unknown location. One approach was the use of probes revealing polymorphic loci spread throughout the genome and resulted in the mapping ofRx1. The second approach was based on the assumption of possible linkage between the resistance gene and clone-specific DNA fragments introduced from a wild potato species.Rx2 was mapped by adopting this strategy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00260710
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