Library

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
    Electronic Resource
    Electronic Resource
    DNA METHYLATION IN PLANTS (1998)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Plant Physiology and Plant Molecular Biology 49 (1998), S. 223-247 
    Details
    ISSN: 1040-2519
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Notes: Abstract Methylation of cytosine residues in DNA provides a mechanism of gene control. There are two classes of methyltransferase in Arabidopsis; one has a carboxy-terminal methyltransferase domain fused to an amino-terminal regulatory domain and is similar to mammalian methyltransferases. The second class apparently lacks an amino-terminal domain and is less well conserved. Methylcytosine can occur at any cytosine residue, but it is likely that clonal transmission of methylation patterns only occurs for cytosines in strand-symmetrical sequences CpG and CpNpG. In plants, as in mammals, DNA methylation has dual roles in defense against invading DNA and transposable elements and in gene regulation. Although originally reported as having no phenotypic consequence, reduced DNA methylation disrupts normal plant development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.arplant.49.1.223
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Developing a transposon tagging system to isolate rust-resistance genes from flax (1992)
    Springer
    Theoretical and applied genetics 85 (1992), S. 46-54 
    Details
    ISSN: 1432-2242
    Keywords: Linum usitatissimum ; Melampsora lini ; Rust-resistance genes ; Ac/Ds gene tagging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A line of flax, homozygous for four genes controlling resistance to flax rust, was transformed with T-DNA vectors carrying the maize transposable elements Ac and Ds to assess whether transposition frequency would be high enough to allow transposon tagging of the resistance genes. Transposition was much less frequent in flax than in Solanaceous hosts such as tobacco, tomato and potato. Transposition frequency in callus tissue, but not in plants, was increased by modifications to the transposase gene of Ac. Transactivation of the excision of a Ds element was achieved by expressing a cDNA copy of the Ac transposase gene from the Agrobacterium T-DNA 2′ promoter. Progeny of three plants transformed with Ac and 15 plants transformed with Ds and the transposase gene, were examined for transposition occurring in the absence of selection. Transposition was observed in the descendants of only one plant which contained at least nine copies of Ac. Newly transposed Ac elements were observed in 25–30% of the progeny of some members of this family and one active Ac element was located 28.8 (SE=6.3) map units from the L 6 rust-resistance gene. This family will be potentially useful in our resistance gene tagging program.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00223843
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...