"Sky islands" in the eastern U.S.A.? — Strong phylogenetic structure in the Heuchera parviflora group (Saxifragaceae). Issue 2 (28th December 2018)
- Record Type:
- Journal Article
- Title:
- "Sky islands" in the eastern U.S.A.? — Strong phylogenetic structure in the Heuchera parviflora group (Saxifragaceae). Issue 2 (28th December 2018)
- Main Title:
- "Sky islands" in the eastern U.S.A.? — Strong phylogenetic structure in the Heuchera parviflora group (Saxifragaceae)
- Authors:
- Folk, Ryan A.
Freudenstein, John V. - Abstract:
- Abstract: Lineage delimitation using multiple sources of data has received renewed emphasis owing to the new possibilities offered by multi–locus datasets and model–based analyses. Species complexes displaying interrupted sky island–like distributions may be especially under–assessed by current taxonomies, warranting reexamination with new data and methodologies. We present a molecular and morphological study of the discontinuously distributed Heuchera parviflora complex (Saxifragaceae), with the aim of identifying genetic lineages that correlate with geography and morphology and may be worthy of taxonomic recognition in this contentious group. Concatenated analyses of the molecular data suggest four genetic lineages that are allopatric or (in one case) parapatric and correlate with major physiographic provinces. These lineages also correlate with morphological differentiation in the group and suggest taxonomically useful morphological characters. Independent, confirmatory coalescent approaches strongly support the four lineages identified by concatenation. However, morphological differentiation, though involving multiple characters, is relatively weak between two of the identified lineages. For this reason, in contrast with most coalescent studies we advocate the use of both specific and varietal rank, recognizing in total three species, one with two varieties.
- Is Part Of:
- Taxon. Volume 64:Issue 2(2015)
- Journal:
- Taxon
- Issue:
- Volume 64:Issue 2(2015)
- Issue Display:
- Volume 64, Issue 2 (2015)
- Year:
- 2015
- Volume:
- 64
- Issue:
- 2
- Issue Sort Value:
- 2015-0064-0002-0000
- Page Start:
- 254
- Page End:
- 271
- Publication Date:
- 2018-12-28
- Subjects:
- Heuchera parviflora -- Lineage delimitation -- Phylogeography -- Saxifragaceae -- Sky island -- Species delimitation
Plants -- Classification -- Periodicals
580.12 - Journal URLs:
- http://onlinelibrary.wiley.com/ ↗
https://onlinelibrary.wiley.com/journal/19968175 ↗ - DOI:
- 10.12705/642.3 ↗
- Languages:
- English
- ISSNs:
- 0040-0262
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 8611.820000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 10173.xml