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EVIDENCE FOR GENETIC HETEROZYGOSITY IN A HOMOSPOROUS FERN
Author(s) -
Gastony Gerald J.,
Gottlieb Leslie D.
Publication year - 1982
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1982.tb13300.x
Subject(s) - biology , fern , loss of heterozygosity , sporophyte , botany , gametophyte , ploidy , allele , genetics , gene , pollen
Homosporous fern sporophytes from natural populations exhibited heterozygous electrophoretic patterns for several enzyme systems. Genetic tests utilizing individual gametophytes demonstrate that the observed heterozygosity is coded by alleles at single loci. This simple procedure makes it possible to distinguish segregating from fixed or phenotypic heterozygosity, previously a problem in homosporous vascular plants.