Rocky Mountain Research Station Publications
RMRS Online Publication - Journal
Articles, External Publications, and Special Reports
Origin of the flax cultuvar 'Appar' and its position within the Linum perenne complex
Pendleton, Rosemary L.; Kitchen, Stanley G.; Mudge, Joann; McArthur, E. Durant. 2008. Origin of the flax cultuvar 'Appar' and its position within the Linum perenne complex. International Journal of Plant Science. 169(3): 445-453.
The 'Appar' flax germplasm was originally released by the USDA Soil Conservation Service as a cultivar of Linum lewisii. The observation that 'Appar' is heterostylic, a key taxonomic character distinguishing Lewis flax from other members of the Linum perenne complex, created a need for further study in order to resolve the taxonomic position of both Lewis flax and the 'Appar' cultivar. We grew 10 plants each of nine European, nine North American, and three putative 'Appar' seed sources, measured 18 morphologic variables on each plant, and examined genetic variation using randomly amplified polymorphic DNA (RAPD). We also performed self- and cross-pollinations within and among source groups.North American collections differed from European collections for 12 of the 18 morphologic variables. 'Appar' collections were morphologically similar to European collections and differed from North American collections for 13 of the 18 variables. RAPD data also showed that 'Appar' sources clustered with European, and both were distinct from North American sources. European and 'Appar' collections were self-sterile and interfertile, whereas NorthAmerican collections were self-fertile but reproductively isolated from European and 'Appar' collections. We conclude that L. lewisii is a distinct species within the L. perenne complex and that 'Appar' should be classified as L. perenne. This study provides an example of how questions regarding origin and/or taxonomy of plant materials developed for restoration can be resolved.
Keywords: heterostyly, Linum lewisii, native plants, revegetation, morphometrics, RAPDs
About PDFs: For best results, do not open the PDF in your Web browser. Right-click on the PDF link to download the PDF file directly to your computer. Click here for more PDF help.
PDF File Size: 320 K
Title: RMRS Other
Publications: Origin of the flax cultuvar 'Appar' and its position
within the Linum perenne complex
Electronic Publish Date: March 13, 2008
Last Update: March 13, 2008
RMRS Publications | Order a publication | Contact Us