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  • RFLP  (211)
  • Springer  (211)
  • Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu
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  • 1
    Electronic Resource
    Electronic Resource
    Restriction fragment length polymorphisms in theETS-1 proto-oncogene Comparison of Saudi and Western populations (1988)
    Springer
    Cellular and molecular life sciences 44 (1988), S. 1019-1020 
    Details
    ISSN: 1420-9071
    Keywords: ETS 1 proto-oncogene ; RFLP ; Saudi ; leukemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary We have cloned part of theETS 1 proto-oncogene and demonstrated the presence of two polymorphic Sst I restriction sites. A probe derived from one of our clones revealed the presence of 8.3 kb, 9.5 kb and/or 11.5 kb fragments on Southern blots of human DNA samples. The relative frequencies of these alleles appear to be significantly different between Saudi and Western populations, but there are no apparent differences in these frequencies between Saudi non-leukemic and leukemic individuals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01939909
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  • 2
    Electronic Resource
    Electronic Resource
    Genetic diversity in European wheat and spelt breeding material based on RFLP data (1994)
    Springer
    Theoretical and applied genetics 88 (1994), S. 994-1003 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; Spelt ; RFLP ; Marker Genetic diversity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Fifty-two winter wheat (Triticum aestivum L.), nine spring wheat, and 20 spelt (Triticum spelta L.) lines representing part of the European breeding germplasm, were assayed for RFLPs (restriction fragment length polymorphisms) with 56 wheat DNA clones and two barley cDNA clones. Objectives of this study were to (1) determine the level of variation for RFLPs in the wheat and spelt breeding lines, (2) characterize the genetic diversity within the European winter wheat germplasm, and (3) evaluate the usefulness of RFLP markers for pedigree analysis and the grouping of wheat and spelt lines of various origins. Seventy-three of the 166 RFLP loci detected with 58 probes and one restriction enzyme were polymorphic for the 81 lines. The percentage of polymorphic loci was greatest for the B genome (58%) and smallest for the D genome (21%). Among the 81 lines, 271 different RFLP bands were detected. RFLP band frequencies of the winter wheat lines differed considerably (≥0.5) from those of the spring wheat lines at five loci, and from those of the spelt lines at 17 loci. Eight cultivars that had a major impact as progenitors on the development of improved winter wheat cultivars accounted for 93% of the observed RFLP bands in winter wheat. Genetic distance (GD) estimates between two lines ranged between 0.01 and 0.21. Mean GD estimates within winter wheat (0.083), within spring wheat (0.108) and within spelt (0.096) were smaller than between spring and winter wheat (0.114), and greatest between winter wheat and spelt (0.132) and spring wheat and spelt (0.148). Principal coordinate analysis performed on GD estimates revealed a clear separation of wheat and spelt germplasm. Novel spelt lines with various proportions of wheat germplasm were positioned between wheat and traditional spelt lines. The spring wheat lines formed a distinct group at the periphery of the distribution of the winter wheat lines. Subgroupings of the winter wheat lines according to the cluster analysis were in good agreement with their origin, and lines with common ancestors were grouped together.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220807
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  • 3
    Electronic Resource
    Electronic Resource
    Identification of molecular markers linked to the Agropyron elongatum-derived leaf rust resistance gene Lr24 in wheat (1995)
    Springer
    Theoretical and applied genetics 90 (1995), S. 982-990 
    Details
    ISSN: 1432-2242
    Keywords: Leaf rust ; RFLP ; RAPD ; Wheat ; Agropyron elongatum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The objective of this study was to identify molecular markers linked to the wheat leaf rust resistance gene Lr24 derived from Agropyron elongatum (3DL/3Ag translocation). Two near isogenic lines (NILs), ‘Arina’ and Lr24/7 * “Arina”, were screened for polymorphism at the DNA level with 115 RFLP probes. Twenty-one of these probes map to the homoeologous group 3. In addition, 360 RAPD primers were tested on the NILs. Six RFLP probes showed polymorphism between the NILs, and 11 RAPD primers detected one additional band in the resistant NIL. The genetic linkage of the polymorphic markers with Lr24 was tested on a segregating F2 population (150 plants) derived from a cross between the leaf rust resistant Lr24/7 * “Arina” and the susceptible spelt (Triticum spelta) variety ‘Oberkulmer’. All 6 RFLP markers were completely linked to Lr24: one was inherited as a codominant marker (PSR1205), one was in coupling phase (PSR1203) and 4 were in repulsion phase (PSR388, PSR904, PSR931, PSR1067) with Lr24. The localization of these probes on chromosome 3D was confirmed by nulli-tetrasomic analysis. Distorted genotypic segregation was found for the Codominant RFLP marker PSR1205. This distortion can be explained by the occurrence of hemizygous plants. One of the 11 RAPD markers (OPJ-09) also showed complete linkage to theLr24 resistance gene. The polymorphic RAPD fragment was cloned and sequenced. Specific primers were synthesized, and they produced an amplification product only in the resistant plants. This specific marker allows a reliable and rapid screening of a large number of genotypes in practical breeding. Analysis of 6 additional lines containing Lr24 revealed that 3 lines have a smaller chromosomal segment of A. elongatum than lines derived from ‘Agent’, a commonly used gene donor for the Lr24 resistance gene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222911
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  • 4
    Electronic Resource
    Electronic Resource
    Linkage between RFLP markers and genes affecting kernel hardness in wheat (1996)
    Springer
    Theoretical and applied genetics 93 (1996), S. 580-586 
    Details
    ISSN: 1432-2242
    Keywords: Kernel hardness ; Wheat ; RFLP ; QTL ; Puroindoline
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A molecular-marker linkage map of wheat (Triticum aestivum L. em. Thell) provides a powerful tool for identifying genomic regions influencing breadmaking quality. A variance analysis for kernel hardness was conducted using 114 recombinant inbred lines (F7) from a cross between a synthetic and a cultivated wheat. The major gene involved in kernel hardness, ha (hard), known to be on chromosome arm 5DS, was found to be closely linked with the locus Xmta9 corresponding to the gene of puroindoline-a. This locus explained around 63% of the phenotypic variability but there was no evidence that puroindoline-a is the product of Ha (soft). Four additional regions located on chromosomes 2A, 2D, 5B, and 6D were shown to have single-factor effects on hardness, while three others situated on chromosomes 5A, 6D and 7A had interaction effects. Positive alleles were contributed by both parents. A three-marker model explains about 75% of the variation for this trait.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00417951
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  • 5
    Electronic Resource
    Electronic Resource
    Linkage between RFLP markers and genes affecting kernel hardness in wheat (1996)
    Springer
    Theoretical and applied genetics 93 (1996), S. 580-586 
    Details
    ISSN: 1432-2242
    Keywords: Key words Kernel hardness ; Wheat ; RFLP ; QTL ; Puroindoline
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A molecular-marker linkage map of wheat (Triticum aestivum L. em. Thell) provides a powerful tool for identifying genomic regions influencing breadmaking quality. A variance analysis for kernel hardness was conducted using 114 recombinant inbred lines (F7) from a cross between a synthetic and a cultivated wheat. The major gene involved in kernel hardness, ha (hard), known to be on chromosome arm 5DS, was found to be closely linked with the locus Xmta9 corresponding to the gene of puroindoline-a. This locus explained around 63% of the phenotypic variability but there was no evidence that puroindoline-a is the product of Ha (soft). Four additional regions located on chromosomes 2A, 2D, 5B, and 6D were shown to have single-factor effects on hardness, while three others situated on chromosomes 5A, 6D and 7A had interaction effects. Positive alleles were contributed by both parents. A three-marker model explains about 75% of the variation for this trait.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050318
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  • 6
    Electronic Resource
    Electronic Resource
    RFLP-based genetic map of rye (Secale cereale L.) chromosome 1R (1991)
    Springer
    Theoretical and applied genetics 82 (1991), S. 174-178 
    Details
    ISSN: 1432-2242
    Keywords: Rye ; Genetic mapping ; RFLP ; Storage protein ; Isozyme
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A map of chromosome 1R of rye was constructed using 16 molecular and biochemical loci. From long arm to short arm, known-function loci were placed in the order: XAdh — XLee — Glu-R1[Sec-3] — XPpdk-1R — XEm-1R-1 — XEm-1R-2 — Centromere — XNor-R1 —Gpi-R1 — XGli-R1 [Sec-1a] along with six anonymous genomic and cDNA clones from wheat. The map, which spans 106 cM with 12 loci clustered in a 15-cM region around the centromere, shows reasonably good agreement with previously published maps for the centromeric region, whereas the XNor-R1 — Gpi-R1 region gives a much larger distance than previously reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00226209
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  • 7
    Electronic Resource
    Electronic Resource
    Chromosomal rearrangements in the rye genome relative to that of wheat (1993)
    Springer
    Theoretical and applied genetics 85 (1993), S. 673-680 
    Details
    ISSN: 1432-2242
    Keywords: Translocations ; Rye ; RFLP ; Genetic maps ; Comparative mapping ; Co-linearity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary An RFLP-based genetic map of Secale Cereale has provided evidence for multiple evolutionary translocations in the rye genome relative to that of hexaploid wheat. DNA clones which have previously been mapped in wheat indicated that chromosome arms 2RS, 3RL, 4RL, 5RL, 6RS, 6RL, 7RS and 7RL have all been involved in at least one translocation. A possible evolutionary pathway, which accounts for the present day R genome relative to the A, B and D genomes of wheat, is presented. The relevance of these results for strategies designed to transfer useful genes from rye, and probably other related species, to wheat is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00225004
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  • 8
    Electronic Resource
    Electronic Resource
    Characterization of disomic addition lines Brassica napus-Brassica nigra by isozyme, fatty acid, and RFLP markers (1991)
    Springer
    Theoretical and applied genetics 81 (1991), S. 43-49 
    Details
    ISSN: 1432-2242
    Keywords: Brassica ; Genome ; Isozymes ; RFLP ; Fatty acids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Six Brassica napus — B. nigra disomic addition lines were characterized by isozyme, fatty acid, and RFLP markers. The markers were arranged in six synteny groups, representing six of the eight chromosomes present in the B. nigra genome. Synteny group 1 displayed high levels of linoleic and linolenic acids in the seeds of the B. nigra parent. Synteny group 3 accumulated higher levels of eicosenoic and erucic acid than B. nigra. Three of the lines transmitted the alien chromosome to 100% of the progeny. The rest had variable transmission rates but all were above 50%. Most of the lines produced disomic addition plants in their progeny, suggesting pollen transmission of the alien chromosome. In addition to the marked lines, six others remained unmarked. These could be grouped into two classes according to their alien chromosome transmission. It is likely that they represent the two other B. nigra chromosomes that remained uncharacterized by the markers. No diploid individuals carrying B. nigra genome-specific markers were detected in the progenies studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00226110
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  • 9
    Electronic Resource
    Electronic Resource
    Comparative RFLP-based genetic maps of barley chromosome 5 (1H) and rye chromosome 1R (1992)
    Springer
    Theoretical and applied genetics 84 (1992), S. 339-344 
    Details
    ISSN: 1432-2242
    Keywords: Barley ; Genetic mapping ; RFLP ; Storage proteins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A genetic map of barley chromosome 5 (1H) was constructed using DNA markers. Seventeen loci were mapped to 15 locations, and these included the known-function loci (in order from the most distal on the long arm) XAdh (alcohol dehydrogenase), XLec (homologous to wheat germ agglutinin), XHor3 (D-hordein), XPpdk (pyruvate orthophosphate dikinase), centromere, XIcal (chymotrypsin inhibitor), and 6 loci in the B- and C-hordein cluster towards the end of the short arm. The gene order on the barley map agreed closely with that of chromosome 1 of rye. Intervarietal comparisons showed that single-copy cDNA and genomic DNA probes revealed about twice the level of RFLPs found in wheat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00229492
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  • 10
    Electronic Resource
    Electronic Resource
    A molecular, isozyme and morphological map of the barley (Hordeum vulgare) genome (1993)
    Springer
    Theoretical and applied genetics 86 (1993), S. 705-712 
    Details
    ISSN: 1432-2242
    Keywords: RFLP ; Mapping ; Barley ; Genome ; Centromeres
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A map of the barley genome consisting of 295 loci was constructed. These loci include 152 cDNA restriction fragment length polymorphism (RFLP), 114 genomic DNA RFLP, 14 random amplified polymorphic DNA (RAPD), five isozyme, two morphological, one disease resistance and seven specific amplicon polymorphism (SAP) markers. The RFLP-identified loci include 63 that were detected using cloned known function genes as probes. The map covers 1,250 centiMorgans (cM) with a 4.2 cM average distance between markers. The genetic lengths of the chromosomes range from 124 to 223 cM and are in approximate agreement with their physical lengths. The centromeres were localized to within a few markers on all of the barley chromosomes except chromosome 5. Telomeric regions were mapped for the short (plus) arms of chromosomes 1, 2 and 3 and the long (minus) arm of chromosomes 7.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222660
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