ausblenden:
Schlagwörter:
flatworm; Polycelis; polyploidy; pseudogamous parthenogenesis;
supernumerary chromosome; Tricladida
R-locus genes; aberrant segregation; incompatible crosses;
population-structure; mitochondrial-dna; clonal diversity;
monacha-lucida; b-chromosome; evolution; origin
Zusammenfassung:
The hermaphroditic flatworm, Polycelis nigra, is characterized by two reproductive biotypes which differ with respect to ploidy; sexual individuals are diploid (n = 8, 2x = 16) and pseudogamous parthenogenetic individuals are polyploid (typically 3x). W