ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Forests of the past: a window to future changes (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-06-17
    Description: The study of past forest change provides a necessary historical context for evaluating the outcome of human-induced climate change and biological invasions. Retrospective analyses based on fossil and genetic data greatly advance our understanding of tree colonization, adaptation, and extinction in response to past climatic change. For instance, these analyses reveal cryptic refugia near or north of continental ice sheets, leading to reevaluation of postglacial tree migration rates. Species extinctions appear to have occurred primarily during periods of high climatic variability. Transoceanic dispersal and colonization in the tropics were widespread at geological time scales, inconsistent with the idea that tropical forests are particularly resistant to biological invasions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Petit, Remy J -- Hu, Feng Sheng -- Dick, Christopher W -- New York, N.Y. -- Science. 2008 Jun 13;320(5882):1450-2. doi: 10.1126/science.1155457.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INRA, UMR1202 Biodiversity, Genes and Communities, 69 Route d'Arcachon, F-33612 Cestas, France. petit@pierroton.inra.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18556547" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Biological Evolution ; *Climate ; *Ecosystem ; Extinction, Biological ; Fossils ; Genetic Speciation ; Time ; *Trees/genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Genetic polymorphism in maritime pine (Pinus pinaster Ait.) assessed by two-dimensional gel electrophoresis of needle, bud, and pollen proteins (1995)
    Springer
    Journal of molecular evolution 41 (1995), S. 231-237 
    Details
    ISSN: 1432-1432
    Keywords: Maritime pine ; 2D electrophoresis ; Genetic variability ; Diversity ; Organ-specific polypeptides ; Mobility variants ; Molecular weight
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Using two-dimensional polyacrylamide gel electrophoresis, the genetic variation of proteins was examined in three organs (needle, bud, and pollen) from 18 trees of maritime pine. Three types of variation were noted: presence/absence, staining intensity, and position variation of the spots. Of the 902 polypeptides scored in the three organs, 245 (27.2%) were polymorphic. Moreover, among these variable spots, 117 were found in a single organ, demonstrating an increased polymorphism of the organ-specific polypeptides (56.0% vs 18.4% for the organ-unspecific polypeptides). Finally, a positive correlation was found between variability level and subunit molecular weight for spots showing position variation but not for spots showing presence/absence or staining intensity variations. Possible explanations for this observation are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00170677
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    High level of genetic differentiation for allelic richness among populations of the argan tree [Argania spinosa (L.) Skeels] endemic to Morocco (1996)
    Springer
    Theoretical and applied genetics 92 (1996), S. 832-839 
    Details
    ISSN: 1432-2242
    Keywords: Key words  Desertification  ;  Genetic diversity  ;  Fragmentation  ;  Genetic conservation  ;  Rarefaction method
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract   Genetic diversity at nine isozyme loci was surveyed in an endangered tree species, the argan tree, endemic to south-western Morocco. The species is highly diverse (3.6 alleles/locus) with populations strongly differentiated from each other (F ST=0.25). This example is used to illustrate a method for standardizing measures of allelic richness in samples of unequal sample sizes, which was developed for the estimation of the number of species and relies on the technique of rarefaction. In addition, it is shown that the measure of subdivision, ρ ST, obtained when allelic richness is used in place of h (Nei's index of diversity), is much larger than the F ST[e.g. ρ ST(40)=0.52, where (40) indicates the specified sample used to estimate the allelic richness]. This suggests that rare alleles (which strongly influence measures of allelic richness) have a more scattered distribution than more frequent ones, a result which raises special conservation issues for the argan tree.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050200
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    High level of genetic differentiation for allelic richness among populations of the argan tree [Argania spinosa (L.) Skeels] endemic to Morocco (1996)
    Springer
    Theoretical and applied genetics 92 (1996), S. 832-839 
    Details
    ISSN: 1432-2242
    Keywords: Desertification ; Genetic diversity ; Fragmentation ; Genetic conservation ; Rarefaction method
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Genetic diversity at nine isozyme loci was surveyed in an endangered tree species, the argan tree, endemic to south-western Morocco. The species is highly diverse (3.6 alleles/locus) with populations strongly differentiated from each other (F ST=0.25). This example is used to illustrate a method for standardizing measures of allelic richness in samples of unequal sample sizes, which was developed for the estimation of the number of species and relies on the technique of rarefaction. In addition, it is shown that the measure of subdivision, θ ST, obtained when allelic richness is used in place ofh (Nei's index of diversity), is much larger than the F ST [e.g. θ ST(40)=0.52, where (40) indicates the specified sample used to estimate the allelic richness]. This suggests that rare alleles (which strongly influence measures of allelic richness) have a more scattered distribution than more frequent ones, a result which raises special conservation issues for the argan tree.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00221895
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Strict paternal inheritance of chloroplast DNA and maternal inheritance of mitochondrial DNA in intraspecific crosses of kiwifruit (1999)
    Springer
    Theoretical and applied genetics 99 (1999), S. 314-322 
    Details
    ISSN: 1432-2242
    Keywords: Key words Actinidia deliciosa ; cpDNA ; mtDNA ; PCR ; Universal primers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Previous studies have established that chloroplasts are inherited paternally in Actinidia interspecific crosses. However, fertilisation problems in interspecific crosses may affect the transmission of organelles. Six female clones, i.e. ‘Abbott’, ‘Bruno’, ‘Greensill’, ‘Hayward’, ‘Jones’, ‘Monty’, and four male clones were used to identify cpDNA polymorphisms within the cultivated kiwifruit species A. deliciosa. The restriction patterns by HpaII of a chloroplast fragment amplified by PCR with a pair of universal primers revealed a polymorphism at the intraspecific level. The inheritance of cpDNA in 143 seedlings from three intraspecific crosses in kiwifruit (Actinidia deliciosa) was studied. All offspring displayed the restriction pattern of the paternal parent, indicating that maternal inheritance of cpDNA in kiwifruit is rare at best. Strict maternal inheritance of mtDNA was confirmed in the same crosses used to investigate cpDNA transmission. Studies of cytoplasmic inheritance in the Actinidia genus represent to date the best documented report of differential organelle inheritance of cpDNA and mtDNA in angiosperms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051238
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Estimation, variance and optimal sampling of gene diversity (1995)
    Springer
    Theoretical and applied genetics 90 (1995), S. 462-470 
    Details
    ISSN: 1432-2242
    Keywords: Diversity ; Differentiation ; Variance ; Optimal design
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract An extension of Nei's analysis of diversity in a subdivided population is proposed for a haploid locus. The differentiation G STbecomes a natural extension of Wright's F STand generalizes Weir and Cockerham's parameter of co-ancestry by relaxing the assumption of identical correlation for all the alleles. Inter- and intrapopulation variances of the estimated diversities and differentiation are derived. Finally, the optimal sampling strategy for measuring G STwhen a fixed number of individuals can be analysed is considered. It is shown that, at a given locus, there is a unique sample size per population which yields the smallest variance of G ST,regardless of the number of populations studied. These theoretical developments are illustrated with an analysis of chloroplast DNA diversity in a forest tree. The results emphasize the necessity of sampling many populations, rather than many individuals per population, for an accurate measurement of the subdivision of gene diversity at a single locus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00221991
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Geographic structure of chloroplast DNA polymorphisms in European oaks (1993)
    Springer
    Theoretical and applied genetics 87 (1993), S. 122-128 
    Details
    ISSN: 1432-2242
    Keywords: Quercus petraea ; Q. robur ; Q. pubescens ; Diversity ; Bootstrap ; Autocorrelation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Chloroplast DNA polymorphisms have been detected by the conventional Southern-blotting hybridization method in four species of European oaks (Quercus petraea, Q. robur, Q. pubescens and Q. pyrenaica). Three polymorphisms, shared by at least three of these species, can be scored directly in ethidium bromidestained gels and were used in a broad survey of the level of differentiation of the oak species and of their pattern of genetic structure in western Europe. The highly significant geographic variation and the high genetic differentiation (Gst=0.895, SGst=0.025) indicate a low level of cytoplasmic gene flow. We conclude that cytoplasmic genomes are well suited for the reconstruction of past migrational routes of such a complex of species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00223755
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Inheritance of chloroplast and mitochondrial genomes in pedunculate oak investigated with an efficient PCR method (1995)
    Springer
    Theoretical and applied genetics 91 (1995), S. 1253-1256 
    Details
    ISSN: 1432-2242
    Keywords: Insertion-deletion ; Maternal inheritance ; Non coding DNA ; Quercus robur ; Universal primers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The restriction patterns of two chloroplast fragments and one mitochondrial DNA fragment, amplified by PCR with universal primers, were studied to determine the mode of inheritance of these organelles in 143 progeny of five intraspecific crosses in pedunculate oak (Quercus robur L.). The results indicate that both genomes are maternally inherited, an observation which agrees with the commonly observed pattern of inheritance in angiosperms. They confirm that both chloroplast DNA and mitochondrial DNA can be used as a source of seed-specific markers for the study of the geographic structure of oaks. This is the first report of organelle inheritance within the Fagaceae, an important and widespread tree family.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220937
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    facet.materialart.
    Unknown
    Chloroplast DNA footprints of postglacial recolonization by oaks (1997)
    National Academy of Sciences
    Details
    Publication Date: 1997-09-02
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    Ice-age endurance: DNA evidence of a white spruce refugium in Alaska (2006)
    National Academy of Sciences
    Details
    Publication Date: 2006-08-07
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...