Identification of All Genotypes in Tetraploid Ryegrass (Lolium spp.) Segregating for Four Alleles in a Pgi-Enzyme Locus

Gunnar Gissel Nielsen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    A phosphoglucoisomerase locus (Pgi-2) segregates for four alleles in chromosome-doubled plants of the two ryegrasses, Lolium perenne and L. multiflorum. After separation by starch gel electrophoresis, all the possible 35 genotypes have been identified by means of the gene dosage effect on the isoenzyme bands. The Pgi-2 enzyme is a dimer and the zymogramme patterns show a maximum of seven bands, three of which are hybrid bands. An explanation of the complex variation in banding pattern is given. The existence of a fifth allele is shown and a possible effect of aneuploidy is discussed.
    Original languageEnglish
    JournalHereditas (Print)
    Volume92
    Issue number1
    Pages (from-to)49-52
    ISSN0018-0661
    DOIs
    Publication statusPublished - 1980

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