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A Survey Of Apomixis And Ploidy Levels Among Poa L. (Poaceae) Using Flow Cytometry, Alicia Michelle Kelley, Paul G. Johnson, Blair L. Waldron, Michael D. Peel

CWEL Publications

Poa is a complex genus taxonomically and genetically. As a result, relatively little information exists for this economically important genus with regards to reproductive mode and variability in chromosome number. We examined apomixis frequency and ploidy levels in 83 Poa accessions representing 33 species from the National Plant Germplasm System using flow cytometric techniques. In reproductive mode analysis, we analyzed at least three preparations of 50 seeds each from the accessions. In ploidy level analysis, at least three plants of each accession were analyzed. Sixty percent of the species had at least one apomictic or facultative apomictic accession; 40% were …