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  • Pinus flexilis  (1)
  • Ponderosa Pine  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Primers designed to amplify a mitochondrial nad1 intron in ponderosa pine, Pinus ponderosa, limber pine, P. flexilis, and Scots pine, P. sylvestris (2000)
    Springer
    Theoretical and applied genetics 101 (2000), S. 1269-1272 
    Details
    ISSN: 1432-2242
    Keywords: Key words mtDNA ; Polymorphism ; Pinus ponderosa ; Pinus flexilis ; Pinus sylvestris
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  The b/c intron of the mitochondrial nad1 gene, was sequenced to characterize the indel region of ponderosa pine, Pinus ponderosa. The sequence in ponderosa pine was aligned with the sequence in Scots pine, Pinus sylvestris, to design seven primers that are useful for sequencing and for revealing size variation in amplified fragments in ponderosa pine, Scots pine, and limber pine, Pinus flexilis. These primers reveal variability in all three species, and the pattern of variability within ponderosa pine is described by a preliminary survey. The indel region of ponderosa pine contains three distinct elements with lengths of 31, 32, and 34 bp.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051606
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  • 2
    Electronic Resource
    Electronic Resource
    Observations on the genetic structure and mating system of ponderosa pine in the Colorado front range (1977)
    Springer
    Theoretical and applied genetics 51 (1977), S. 5-13 
    Details
    ISSN: 1432-2242
    Keywords: Selection ; Migration ; Peroxidase ; Ponderosa Pine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Variation of peroxidase enzymes is analyzed both in mature needle tissue and in open-pollinated seedling families of ponderosa pine, Pinus ponderosa, and is identified as being controlled by a single Mendelian locus. Variation at this locus, analyzed in 1, 386 individuals, is used in the analysis of population differentiation and the mating system. Significant variation of gene frequencies is detected over distances of several hundred meters, and is found to be associated with slopes of different aspects. Ponderosa pine is wind-pollinated, and an analysis of the mating system indicates that the level of outcrossing is greater than 90 %. Selection specific for different environments is evidently strong enough to overcome the homogenizing force of migration and produce population fissuring in ponderosa pine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00306055
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    Paper (German National Licenses)
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