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  • 1,8 disubstituted triphenodioxazines  (1)
  • Breeding system  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Breeding systems and population structure in Limnanthes (1985)
    Springer
    Theoretical and applied genetics 71 (1985), S. 292-299 
    Details
    ISSN: 1432-2242
    Keywords: Breeding system ; Population subdivision ; Multilocus estimator ; Inbreeding ; Selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The breeding systems of seven Limanthes (Limanthaceae) populations, including one “inbreeding” and three “outbreeding” taxa, were quantified using a multilocus outcrossing rate estimator (tm) and autofertility estimates. Along with the assays of heterozygosity levels, these data were used to separate components of “effective” outcrossing in terms of Wright's equilibrium inbreeding coefficient (Fe) and adult (FA) and zygotic (FZ) fixation indices. The patchy distribution of alleles as a potential source of “substructure inbreeding” was tested from the allelic frequencies mapped along a linear transect. Evidence for consanguineous matings in restricted neighborhoods and for selection at two different life cycle stages, and the efficiency of the protandrous breeding system were noted and discussed. Multilocus estimates of outcrossing are useful for their greater precision and unbiased nature while single locus estimates can help in detecting the effects of selection and population substructure. The data generally support the “heterozygosity paradox” noted by Brown (1979) but further suggest that the paradox may often result from a lack of precision of outcrossing estimates and from overlooking the stages of the life cycle being sampled.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00252070
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  • 2
    Electronic Resource
    Electronic Resource
    Thin-layer chromatographic analysis of some new 1,8-disubstituted triphenodioxazines (1979)
    Springer
    Chromatographia 12 (1979), S. 306-307 
    Details
    ISSN: 1612-1112
    Keywords: TLC studies of some ; 1,8 disubstituted triphenodioxazines ; using non-aqueous solvents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A thin-layer chromatographic method for the separation and identification of hitherto unknown disubstituted triphenodioxazines in submicrogram amounts has been developed using silica gel plates. The solvent systems used are acetone-petroleum ether (60∶40), benzene-petroleum ether (80∶20) and acetone-petroleum ether (50∶50). The compounds are detected by spraying the plates with 0.05 mol dm−3 sulphuric acid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02261836
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    Paper (German National Licenses)
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