Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or 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.

Molecular and Morphological Reassessment of Relationships within the Vittadinia Group of Astereae (Asteraceae)

Timothy K. Lowrey, Christopher J. Quinn, Rachael K. Taylor, Raymund Chan, Rebecca T. Kimball and Jan C. De Nardi
American Journal of Botany
Vol. 88, No. 7 (Jul., 2001), pp. 1279-1289
Stable URL: http://www.jstor.org/stable/3558339
Page Count: 11
  • 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.
Molecular and Morphological Reassessment of Relationships within the Vittadinia Group of Astereae (Asteraceae)
Preview not available

Abstract

Morphological and ITS (internal transcribed spacer) sequence data for 40 species of the Austral-Pacific genera Camptacra, Kippistia, Minuria, Peripleura, Tetramolopium, and Vittadinia as well as one semiherbaceous species of Olearia were subjected to cladistic analysis, separately and together. Minuria, Peripleura, and Tetramolopium are paraphyletic as currently defined. Tetramolopium vagans from Australia appears to represent an undescribed genus. Both Kippistia suadefolia and Peripleura diffusa show close affinity to Minuria species, and Minuria macrorhiza appears to contain two distinct but closely related species. Vittadinia and the remaining species of Tetramolopium and Peripleura form a strong affinity group. The distribution of indels and the combined analysis each provide evidence that the Hawaiian and Cook Island species of Tetramolopium are descended from New Guinea species. The combined analysis also suggests that the Cook Island species T. mitiaroense is sister to the Hawaiian clade. Olearia arguta groups strongly with Camptacra and shows no close affinity with either of the arborescent species of Olearia used to root these analyses. Marked homoplasy among morphological characters indicates why generic delimitation in the group has been problematic.

Page Thumbnails

  • Thumbnail: Page 
1279
    1279
  • Thumbnail: Page 
1280
    1280
  • Thumbnail: Page 
1281
    1281
  • Thumbnail: Page 
1282
    1282
  • Thumbnail: Page 
1283
    1283
  • Thumbnail: Page 
1284
    1284
  • Thumbnail: Page 
1285
    1285
  • Thumbnail: Page 
1286
    1286
  • Thumbnail: Page 
1287
    1287
  • Thumbnail: Page 
1288
    1288
  • Thumbnail: Page 
1289
    1289