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  • 1
    Digitale Medien
    Digitale Medien
    The evolution of fraction I protein during the origin of a new species ofNicotiana (1975)
    Springer
    Journal of molecular evolution 7 (1975), S. 59-64 
    Details
    ISSN: 1432-1432
    Schlagwort(e): Fraction I Protein ; Ribulose Diphosphate Carboxylase ; Nicotiana ; Origin of Species
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The polypeptide composition of Fraction I protein fromNicotiana digluta, a synthetic species which arose by chromosome doubling following the interspecific hybridization ofN.glutinosa andN.tabacum, has been examined by isoelectric focusing. The composition of the protein fromN.digluta, which was identical to the protein from the infertile F1 hybridN.glutinosa xN.tabacum, showed 3 polypeptides in the large subunit and 4 polypeptides in the small subunit. The large subunit polypeptides were identical to those fromN.glutinosa, the maternal parent in the original hybridization, whereas the small subunit polypeptides were a composite of the small subunit polypeptides from bothN.glutinosa andN.tabacum. This analysis demonstrates how the polypeptide composition of Fraction I protein evolves during the origin of new species ofNicotiana.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01732179
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Polypeptide composition of fraction I protein from Nicotiana glauca and from cultivars of Nicotiana tabacum, including a male sterile line (1975)
    Springer
    Biochemical genetics 13 (1975), S. 771-778 
    Details
    ISSN: 1573-4927
    Schlagwort(e): fraction I protein ; ribulose diphosphate carboxylase ; Nicotiana ; tobacco ; male sterility
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The polypeptide compositions of fraction I protein isolated from six collections of Nicotiana glauca and from ten cultivars of N. tabacum, as well as a polyploid series and a male sterile line, have been analyzed by isoelectric focusing in polyacrylamide gel slabs containing 8 m urea. Apart from the male sterile line, none of the plants showed any variation from the species pattern of polypeptides. Fraction I protein from the male sterile Burley 21 cultivar of N. tabacum contained the two small subunit polypeptides of N. tabacum and the three large subunit polypeptides of an Australian species, probably N. megalosiphon. This indicates a changed chloroplast genome in the male sterile line in comparison to the normal fertile N. tabacum.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00484408
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Serological relationships of Fraction I proteins from species in the genusNicotiana (1977)
    Springer
    Plant systematics and evolution 128 (1977), S. 53-69 
    Details
    ISSN: 1615-6110
    Schlagwort(e): Solanaceae ; Nicotiana ; Fraction I protein ; serotaxonomy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The serological relationships of Fraction I proteins from 62 species of the genusNicotiana have been determined by qualitative double diffusion in agar gels, using antisera raised against crystalline Fraction I proteins from four species,N. glauca, N. glutinosa, N. gossei, andN. tabacum. The relationships obtained are, in most cases, similar to the relationships of the species based on morphological and cytogenetic criteria. In general, Fraction I proteins from species within the same section are serologically identical. However, serological examination of Fraction I proteins draws attention to certain species, for example,N. glauca, N. sylvestris, andN. acaulis, whose classification by traditional methods has been difficult.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00985171
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Serological reactions of Fraction I proteins from interspecific hybrids in the genusNicotiana (1978)
    Springer
    Plant systematics and evolution 129 (1978), S. 177-183 
    Details
    ISSN: 1615-6110
    Schlagwort(e): Solanaceae ; Nicotiana ; Fraction I protein ; interspecific hybrids ; allopolyploids ; serotaxonomy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The serological reactions of Fraction I proteins from interspecific hybrids in the genusNicotiana have been examined by immunodiffusion in agar gels using antisera to crystalline Fraction I proteins fromN. glutinosa, N. gossei, andN. tabacum. The serological reactions of the proteins from the hybrids resembled the reactions of the proteins from the maternal parent species but not from the paternal species. Changes in ploidy level did not affect the serological reactions of Fraction I proteins from hybrids. It is suggested that serological examination of Fraction I proteins from polyploid species and their known progenitors can indicate the direction of the cross giving rise to the polyploid species.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00990759
    Standort Signatur Erwartet Verfügbarkeit
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