ISHS Acta Horticulturae 546: International Symposium on Molecular Markers for Characterizing Genotypes and Identifying Cultivars in Horticulture
MOLECULAR EVIDENCE FOR THE ORIGIN OF ACHILLEA 'TAYGETEA' OF GARDENS |
| Authors: | C. Pankhurst, J. Compton, S. Thornton-Wood, J. Cubey, A. Culham |
| Keywords: | DNA, ITS, sequence, cultivar, Achillea, hybrid |
| Abstract:
Since its appearance prior to 1938, circumscription of the cream-flowered cultivar Achillea 'Taygetea' has been confused by mis-application of the name (which itself is shown to be invalid) and question over its origin. Parentage is commonly attributed to A. clypeolata Sm. (yellow-flowered) x A. millefolium L. (white-flowered). The application of molecular evidence to this problem is discussed. DNA sequence evidence from nuclear ITS and chloroplast DNA suggest that the cultivars share a common origin but are not closely related to A. taygetea. The history of this cultivar is explored, and the status of plants currently available in the UK clarified (based upon a recent trial of garden worthiness undertaken by the Royal Horticultural Society, UK). | |
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