Access

You are not currently logged in.

Access JSTOR through your library or other institution:

login

Log in through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Phylogenetic Relationships among Species of Fragaria (Rosaceae) Inferred from Non-Coding Nuclear and Chloroplast DNA Sequences

Daniel Potter, James J. Luby and Richard E. Harrison
Systematic Botany
Vol. 25, No. 2 (Apr. - Jun., 2000), pp. 337-348
DOI: 10.2307/2666646
Stable URL: http://www.jstor.org/stable/2666646
Page Count: 12
  • Read Online (Free)
  • Download ($12.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Phylogenetic Relationships among Species of Fragaria (Rosaceae) Inferred from Non-Coding Nuclear and Chloroplast DNA Sequences
Preview not available

Abstract

Phylogenetic relationships among 43 accessions of Fragaria, representing 14 species, and one accession of the outgroup Potentilla fruticosa, were assessed using nucleotide sequence data from the nuclear ITS region and from a region of the chloroplast genome including the trnL intron and the trnL-trnF spacer. Variability was low in both regions and lower in the chloroplast than in the nuclear sequences. The data were analyzed cladistically, separately and in combination. Greater phylogenetic resolution was obtained with the ITS and combined data than with the trn data; the strict consensus tree from the combined data analysis was very similar to that from the ITS analysis, but the position of some accessions was affected by the inclusion of the trn data. The results support the following conclusions: Fragaria iinumae is sister to all other species in the genus; F. vesca and F. nubicola are the diploid species most closely related to the polyploid species, including the tetraploid F. orientalis, the hexaploid F. moschata, and the octoploids F. chiloensis and F. virginiana; the latter two species are sister taxa; accessions of F. virginiana subsp. platypetala from Oregon and Nevada are more closely related to F. chiloensis than to other accessions of F. virginiana. The data provide support for the identification of some accessions in the National Clonal Germplasm Repository in Corvallis, Oregon.

Page Thumbnails

  • Thumbnail: Page 
337
    337
  • Thumbnail: Page 
338
    338
  • Thumbnail: Page 
339
    339
  • Thumbnail: Page 
340
    340
  • Thumbnail: Page 
341
    341
  • Thumbnail: Page 
342
    342
  • Thumbnail: Page 
343
    343
  • Thumbnail: Page 
344
    344
  • Thumbnail: Page 
345
    345
  • Thumbnail: Page 
346
    346
  • Thumbnail: Page 
347
    347
  • Thumbnail: Page 
348
    348