Chromosome analysis of the basidiomycete Cyathus stercoreus (Nidulariaceae) reveals that certain chromosomes of the haploid complement structurally resemble one another. These like chromosomes exhibit with high frequency a tendency to form quadrivalents or to show secondary association at diplotene and diakinesis of meiosis, suggesting some degree of homology. This indicates that C. stercoreus is a tetraploid species. It is suggested that the polyploidy of the present species may have resulted from allotetraploidy involving species which may have been evolved from a single ancestor.
No takes yet. Share an insight, caveat, or question.
Benjamin C. Lu (1964) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: