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  • Column liquid chromatography  (17)
  • RFLP  (14)
  • Springer  (31)
  • American Institute of Physics
  • American Institute of Physics (AIP)
  • Nature Publishing Group
  • Oxford University Press
  • Wiley
  • 2020-2022
  • 1990-1994  (31)
  • 1993  (31)
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Keywords
Publisher
  • Springer  (31)
  • American Institute of Physics
  • American Institute of Physics (AIP)
  • Nature Publishing Group
  • Oxford University Press
    • +
Years
  • 2020-2022
  • 1990-1994  (31)
Year
  • 1
    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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  • 2
    Electronic Resource
    Electronic Resource
    RFLP mapping of genes affecting plant height and growth habit in rye (1993)
    Springer
    Theoretical and applied genetics 85 (1993), S. 1049-1054 
    Details
    ISSN: 1432-2242
    Keywords: RFLP ; Rye ; Dwarfism ; Vernalisation ; Genetic mapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary RFLP mapping of chromosome 5R in the F3 generation of a rye (Secale cereale L.) cross segregating for gibberellic acid (GA3)-insensitive dwarfness (Ct2/ct2) and spring growth habit (Sp1/sp1) identified RFLP loci close to each of these agronomically important genes. The level of RFLP in the segregating population was high, and thus allowed more than half of the RFLP loci to be mapped, despite partial homozygosity in the parental F2 plant. Eight further loci were mapped in an unrelated F2 rye population, and a further two were placed by inference from equivalent genetic maps of related wheat chromosomes, allowing a consensus map of rye chromosome 5R, consisting of 29 points and spanning 129 cM, to be constructed. The location of the ct2 dwarfing gene was shown to be separated from the segment of the primitive 4RL translocated to 5RL, and thus the gene is probably genetically unrelated to the major GA-insensitive Rht genes of wheat located on chromosome arms 4BS and 4DS. The map position of Sp1 is consistent both with those of wheat Vrn1 and Vrn3, present on chromosome arms 5AL and 5DL, respectively, and with barley Sh2 which is distally located on chromosome arm 7L (= 5HL).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00215046
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  • 3
    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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  • 4
    Electronic Resource
    Electronic Resource
    Molecular taxonomic relationships in the genus Vigna based on RFLP analysis (1993)
    Springer
    Theoretical and applied genetics 86 (1993), S. 97-104 
    Details
    ISSN: 1432-2242
    Keywords: Vigna ; Numerical taxonomy ; RFLP ; Asiatic grams ; Cowpea ; Bambara groundnut
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The taxonomy of the genus Vigna has been primarily based on morphological attributes. We have used 27 genomic clones from soybean, common bean, mungbean and cowpea to examine restriction fragment length polymorphism (RFLP) among 44 accessions of different species belonging to four subgenera of the genus Vigna. One accession each of common bean (Phaseolus vulgaris) and soybean (Glycine max) was included in the study. Total DNA from the various genotypes was digested with one restriction enzyme (Eco RV). Results of a numerical taxonomic analysis showed a high level of genetic variation within the genus with a remarkably higher amount of variation associated with Vigna sp. from Africa relative to those from Asia. The distinctness of the Asiatic grams in subgenus Ceratotropis, cowpea in section Catiang, bambara groundnut (V. subterranean) and members of the subgenus Plectotropis was elucidated by this study. Members of the subgenus Plectotropis were closer in genome homology to those of subgenus Vigna section Catiang than to those of subgenus Ceratotropis. The relative positions of some genotypes to one another on the dendrogram and minimum spanning tree were discussed in regard to hybridisations aimed generating well-saturated genomic maps and interspecies transfer of desirable genes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00223813
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  • 5
    Electronic Resource
    Electronic Resource
    The distribution of RFLP markers on chromosome 2(2H) of barley in relation to the physical and genetic location of 5S rDNA (1993)
    Springer
    Theoretical and applied genetics 87 (1993), S. 177-183 
    Details
    ISSN: 1432-2242
    Keywords: Barley ; RFLP ; 5S rDNA ; Genetic mapping ; Physical mapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The 5S rDNA locus on the long arm of barley chromosome 2(2H) was genetically mapped in two crosses in relation to 30 other RFLP loci. Comparison of the genetic maps with the previously published physical position of the 5S rDNA, determined by in-situ hybridization, showed that there was a marked discrepancy between physical and genetic distance in both crosses, with recombination being less frequent in the proximal part of the arm. Pooled information from the present study and other published genetic maps showed that at least 26 of the 44 (59%) RFLPs that have been mapped on 2(2H)L lie distal to the 5S rDNA locus even though this region is only 27% of the physical length of the arm. The distribution of RFLP markers is significantly different from expected (P 〈 0.01), implying that the low-copy sequences used for RFLP analysis occur more frequently in distal regions of the arm and, or, that sequences in distal regions are more polymorphic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00223762
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  • 6
    Electronic Resource
    Electronic Resource
    Genome organization of Magnaporthe grisea: genetic map, electrophoretic karyotype, and occurrence of repeated DNAs (1993)
    Springer
    Theoretical and applied genetics 87 (1993), S. 545-557 
    Details
    ISSN: 1432-2242
    Keywords: Rice blast ; RFLP ; Retrotransposon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A genetic map of Magnaporthe grisea (anamorph=Pyricularia oryzae and P. grisea), the causal agent of rice blast disease, was generated from segregation data utilizing 97 RFLP markers, two isoenzyme loci and the mating type locus among progeny of a cross between parental strains Guy 11 and 2539. Of the seven chromosomes of M. Grisea, three were resolved by contour-clamped homogeneous electric field (CHEF) electrophoresis, while the remaining four migrated as two doublet bands. By utilizing differences between CHEF mobilities of unresolved chromosomes from the parental strains, Southern analysis with selected markers allowed the chromosomal assignment of all linkage groups. A small translocation involving 1 marker was found in the parental strains used to produce the segregating population from which the map was constructed. Nine classes of repetitive DNA elements were found in the genome of a fungal isolate pathogenic to rice. These occurred only a few times or not at all in the genomes of isolates showing reduced virulence on rice. One repetitive DNA was shown to have structural similarity to the Alu sequences found in primates, a sequence similarity to the copia-like elements of Drosophila, and peptide similarity to transposable elements found in Drosophila, other fungi, and higher plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00221877
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  • 7
    Electronic Resource
    Electronic Resource
    A particle size distribution analysis of used HPLC column packing material (1993)
    Springer
    Chromatographia 35 (1993), S. 295-301 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Used column packings ; Particle size distribution ; Scanning electron microscopy ; Column age
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Particle size distribution analysis and scanning electron microscopy (SEM) were carried out on eight used HPLC columns containing either irregular silica based, spherical silica based or spherical polymer based packing material. Particle size distributions of the used irregular silica based columns were at least bimodat at the outlet ends and either biomodal or log-normal at the inlet ends with regular progressions between the two extremes through the column. A new ODS-3 column showed log-normal size distributions from the inlet to the outlet ends. Spherical silica based column particle size distributions showed distinct shoulders on large central distribution peaks in most column sections with various degrees of shoulder erosion. The spherical resin based column showed a broader inlet particle size distribution progressing to a very narrow outlet distribution. SEMs of both irregular and spherical silica based columns revealed a larger number of undersized particles and debris at the outlet than inlet ends which could have resulted from stationary phase degradation, since this was not seen in the new ODS-3 column. While several SEMs of the spherical silica based columns revealed hollow spheres and twins, the spherical resin based column packing showed stress fractures or wrinkle lines resulting from use or dehydration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02277513
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  • 8
    Electronic Resource
    Electronic Resource
    A family of wound-induced genes in Populus shares common features with genes encoding vegetative storage proteins (1993)
    Springer
    Plant molecular biology 23 (1993), S. 135-143 
    Details
    ISSN: 1573-5028
    Keywords: bark storage protein ; gene clustering ; RFLP ; systemic response
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Two wound-inducible cDNAs from poplar leaves show sequence identity to vegetative storage proteins (VSP) that accumulate seasonally in poplar bark tissues. We have compared the genomic organization, cDNA sequences and expression of the genes encoding the wound-inducible cDNAs (win4) with that of a bark VSP (called bark storage protein, or BSP). There appear to be several win4 genes in the poplar genome which segregate as a single locus and are therefore likely to be clustered. The same is true of the BSP genes. The win4 locus is linked (map distance of 5 cM) to the BSP locus, consistent with a common evolutionary origin of the genes. A near full-length win4 cDNA shows 75% sequence identity to BSP cDNAs. Both win4 and BSP are systemically wound-inducible; win4 transcripts accumulate in leaves and stems, whereas BSP transcripts accumulate almost exclusively in stems. A phloem transport-dependent signaling mechanism appears to be involved in systemic win4 expression after wounding. In contrast to BSP gene expression, win4 genes are not expressed in response to short day conditions. The data indicate win4 and BSP genes are differentially regulated, and their products may play important roles in the storage and reallocation of nitrogen in perennial plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00021426
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  • 9
    Electronic Resource
    Electronic Resource
    Molecular genetics of growth and development in Populus. I. Triploidy in hybrid poplars (1993)
    Springer
    Theoretical and applied genetics 86 (1993), S. 301-307 
    Details
    ISSN: 1432-2242
    Keywords: RFLP ; Polyploid ; Nondisjunction ; Interspecific hybrid ; Cottonwood
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary While constructing a genetic linkage map of a hybrid poplar genome (Populus trichocarpa x P. deltoides), we identified several restriction fragment length polymorphismus (RFLPs) for which the parental trees are heterozygous. Although 8 of the 11 F1 hybrid offspring inherited, as expected, single RFLP alleles from each parent, 3 F1 trees in the mapping pedigree inherited both maternal alleles along with a single paternal allele at some loci. Aneuploidy or polyploidy in these 3 F1 trees due to partial or complete nondisj unction during female gametogenesis is the simplest explanation for this finding. Of the 3 f1 offspring with supernumerary RFLP alleles 2 have triploid nuclear DNA contents as measured by fluorescence flow cytometry; the 3rd F1 with supernumerary alleles has a sub-triploid nuclear DNA content and is probably aneuploid. Among the tri/aneuploid hybrids, leaf quantitative traits either are skewed toward those values characteristic of the P. trichocarpa female parent (adaxial stomate density, petiole length: blade length ratio; abaxial color) or show transgressive variation (epidermal cell size). Abaxial leaf color was used to screen a large population of P. trichocarpa x P. deltoides hybrids for further evidence of tri/aneuploidy. In each case where a “white” abaxial leaf surface was observed and the nuclear DNA content measured, the hybrid proved to be tri/aneuploid. All sexually mature female triploids examined were sterile, although the inflorescences completed their development in the absence of embryo formation. The (probably) aneuploid F1 hybrid is a fertile female. Of 15 female P. trichocarpa parents used in crosses to P. deltoides, 10 produced one or more tri/aneuploid hybrid offspring. In an intraspecific cross using a P. trichocarpa female that had produced triploid hybrids with five different P. deltoides males, no tri/aneuploid offpsring were found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222092
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  • 10
    Electronic Resource
    Electronic Resource
    Taxonomic and population differentiation of mitochondrial diversity inPinus banksiana andPinus conforta (1993)
    Springer
    Theoretical and applied genetics 86 (1993), S. 573-578 
    Details
    ISSN: 1432-2242
    Keywords: COXI ; COXII ; Maternal inerhitance ; mtDNA ; RFLP
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We have studied two mitochondrial DNA polymorphisms in 741 individuals from 16 allopatric populations ofPinus banksiana Lamb. andPinus contorta Dougl. Restriction fragments of both polymorphisms distinguished the two species qualitatively, except in aP. Banksiana population whose ancestors were involved in hybridization withP. contorta.COXI-associated restriction fragments were monomorphic within species, whileCOXII-associated restriction fragments were highly variable inP. contorta (Hes=0.68). Population differentiation was substantial inP. contorta (Fst=0.31 among subspecies; mean Fst=0.66 within subspecies) and consistent with predictions for maternally inherited markers. Plant mitochondrial markers appear to be useful for the investigation of seed migration routes, hybridization and introgression, breeding zone designation, and the development of germ plasm conservation sampling strategies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00838711
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