Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • 1995-1999  (3)
  • Germ plasm expansion  (2)
  • Centromeres  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Allotetraploid hybrids between citrus and seven related genera produced by somatic hybridization (1996)
    Springer
    Theoretical and applied genetics 92 (1996), S. 577-582 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Key words  Citrus cultivar improvement ; Germ plasm expansion ; Protoplast fusion
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract   We have developed an efficient protoplast-fusion method to produce somatic hybrid allopolyploid plants that combine Citrus with seven related genera, including four that are sexually incompatible. In this paper we report the creation of 18 new allotetraploid hybrids of Citrus, including ten among sexually incompatible related genera, that may have direct cultivar potential as improved citrus rootstocks. All hybrids were confirmed by cytological and RAPD analyses. If fertile, the attributes of these hybrids may be amenable to further genetic manipulation by breeding at the tetraploid level. Wide somatic hybridization of Citrus via protoplast fusion bypasses biological barriers to the natural allopolyploidization of Citrus, and creates new evolutionary opportunities that would be difficult or impossible to achieve by natural or conventional hybridization.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s001220050166
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Allotetraploid hybrids between citrus and seven related genera produced by somatic hybridization (1996)
    Springer
    Theoretical and applied genetics 92 (1996), S. 577-582 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Citrus cultivar improvement ; Germ plasm expansion ; Protoplast fusion
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract We have developed an efficient protoplast-fusion method to produce somatic hybrid allopolyploid plants that combine Citrus with seven related genera, including four that are sexually incompatible. In this paper we report the creation of 18 new allotetraploid hybrids of Citrus, including ten among sexually incompatible related genera, that may have direct cultivar potential as improved citrus rootstocks. All hybrids were confirmed by cytological and RAPD analyses. If fertile, the attributes of these hybrids may be amenable to further genetic manipulation by breeding at the tetraploid level. Wide somatic hybridization of Citrus via protoplast fusion bypasses biological barriers to the natural allopolyploidization of Citrus, and creates new evolutionary opportunities that would be difficult or impossible to achieve by natural or conventional hybridization.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00224561
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Cloning and characterization of a centromere-specific repetitive DNA element from Sorghum bicolor (1998)
    Springer
    Theoretical and applied genetics 96 (1998), S. 832-839 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Key words Sorghum bicolor ; Repetitive DNA sequences ; Centromeres ; Molecular cytogenetics
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract  A 823-bp Sau3AI fragment (pSau3A10) was subcloned from a sorghum bacterial artificial chromosome (BAC) clone, 13I16, that contains DNA sequences specific to the centromeres of grass species. Sequence analysis showed that pSau3A10 consists of six copies of an approximately 137-bp monomer. The six monomers were organized into three dimers. The monomers within the dimers shared 62–72% homology and the dimers were 79–82% homologous with each other. Fluorescence in situ hybridization (FISH) analysis indicated that the Sau3A10 family is present only in the centromeres of sorghum chromosomes. Sequencing, Southern hybridization, and Fiber-FISH analyses indicated that the Sau3A10 family is tandemly arranged and is present in uninterrupted stretches of up to at least 81 kb of DNA. Slot-blot analysis estimated that the Sau3A10 family constitutes 1.6–1.9% of the sorghum genome. The long stretches of Sau3A10 sequences were interrupted by other centromeric DNA elements. Southern analysis indicated that the Sau3A10 sequence is one of the most abundant DNA families located in sorghum centromeres and is conserved only in closely related sorghum species. Methylation experiments indicated that the cytosine of the CG sites in sorghum centromeric regions is generally methylated. The structure and organization of the Sau3A10 family shared similarities with centromeric DNA repeats in other eukaryotic species. It is suggested that the Sau3A10 family is probably an important part of sorghum centromeres.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s001220050809
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...