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
    Elimination of Solanum phureja nucleolar chromosomes in S. tuberosum + S. phureja somatic hybrids (1987)
    Springer
    Theoretical and applied genetics 73 (1987), S. 878-882 
    Details
    ISSN: 1432-2242
    Keywords: Potatoes ; Somatic hybrid plants ; Nucleolar chromosomes ; Chromosome elimination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The karyotype of the dihaploid SVP1 line of S. tuberosum (2n=2x=24) showed two nucleolar chromosomes with differently sized satellites. The diploid SVP5 line (2n=2x=24) and tetraploid regenerants of S. phureja had larger but similar satellites. Somatic hybrids between the diploid lines of these potato species with genome combinations 4 tub + 2 ph (plants 1–3), 2 tub + 4 ph (plants 4–7) and 4 tub + 4 ph (plant 8) had lost 2 phureja nucleolar chromosomes if 4 phureja genomes were present. One phureja nucleolar chromosome of plants 1–3 and both of plants 5 and 7 had rearranged satellites. Elimination of the two nucleolar chromosomes occurred preferentially, was under genetic control, and probably took place during early callus development. NOR activity resulting in rear-rangements between NORs may have caused the elimination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00289393
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Tetraploid potato hybrids through protoplast fusions and analysis of their performance in the field (1992)
    Springer
    Theoretical and applied genetics 83 (1992), S. 807-812 
    Details
    ISSN: 1432-2242
    Keywords: Solanum tuberosum ; Solanum phureja ; Somatic hybrids ; Field experiment ; Agronomic traits
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Data on the production of tetraploid hybrid plants after electrofusion of protoplasts from various diploid (2n = 2x =24) Solarium tuberosum and S. phureja are reported. Ten different fusion combinations were used. Six hybrids with the tetraploid chromosome number 2n=4x=48 were tested under field conditions for their performance in various agronomic traits (tuber type, tuber yield, underwater weight of tubers, numbers of tubers, mean weight per tuber). Tuber yield in five of the six hybrid clones was similar to that of cv Bintje. One hybrid clone (35-4) had three times higher tuber yield than cv Bintje. The mean tuber weight of this hybrid was similar to that of cv Bintje. The results of this study prove that fertile tetraploid somatic hybrids having similar or higher tuber yield than that of cv Bintje can be obtained through somatic hybridization. This technique is now included in commercial potato breeding programs in The Netherlands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00226701
    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...