Library

X
You have 0 saved results.
Mark results and click the "Add To Watchlist" link in order to add them to this list.
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
    Studies on the crossability relationships of some spinous Solanums (1984)
    Springer
    Theoretical and applied genetics 67 (1984), S. 419-426 
    Details
    ISSN: 1432-2242
    Keywords: Spinous Solanums ; Crossability relationships ; Interspecific hybrids ; Chromosome repatterning ; S. melongena
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Cytogenetic studies involving six species of spinous Solanums have been made using the parameters of crossability/fertility relationships and chromosome pairing in parental and derived hybrid genomes. These studies have made it possible to integrate hybrid reproductive performance with observed cytological phenomena and draw inferences on concerned intergenomic homeologies. It has been found that species' differences, as they exist, are ascribable to chromosome repatterning, in their divergence and maintenance as distinct taxa. In the light of these studies, the grouping of these species has to be reconsidered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00263405
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Cytogenetic studies on the F1 hybrid Solanum indicum x S. torvum (1981)
    Springer
    Theoretical and applied genetics 59 (1981), S. 303-306 
    Details
    ISSN: 1432-2242
    Keywords: Solanum indicum ; Solanum torvum ; F1 Solanum hybrid ; Meiosis ; Sterility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The F1 hybrid Solanum indicum x S. torvum could be maintained only under special conditions. Meiosis was highly irregular: about 45% of chromosomes remained as univalents and wherever pairing was observed, it appeared to be loose. A maximum number of three higher chromosome associations other than bivalents, including ‘Y’ and ‘spoon’ type associations, indicate extensive chromosome repatterning. Occasional occurrence of twelve bivalents per PMC suggests that, notwithstanding the extreme divergence, the species have retained sufficient ancestral chromosome homoeologies. Chromosome distribution at anaphase-I was highly irregular and precocious division of chromosomes was observed frequently. This hybrid was 100% sterile and the dropping off of immature flower buds was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264982
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Cytological studies on F1 hybrids of Solanum integrifolium with S. melongena and S. melongena var. insanum (1982)
    Springer
    Genetica 59 (1982), S. 127-131 
    Details
    ISSN: 1573-6857
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract S. integrifolium (2n = 24) can easily be crossed as the pistillate parent with S. melongena (2n = 24) and S. melongena var. insanum (2n = 24). However, crosses in the other direction do not succeed. Both hybrids are vigorous. Chromosome association at diakinesis and metaphase I was studied. Chromosome associations higher than bivalents were observed in the hybrids indicating structural repatterning of chromosomes. The modal chromosome association in hybrids was twelve bivalents per PMC. This is suggestive of the retention of ancestral chromosome homeologies by the taxa concerned. Despite regular meiosis both hybrids were highly pollen-sterile (about 95%), which was attributed to segregational events of the recombined chromosomes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00133296
    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...