Claim · model-written summary
Neighbor-Joining and UPGMA analyses of Nei's genetic distance grouped all populations within each taxon into their own clusters.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Verbatim
e0“Neighbor-Joining and Unweighted Pair Group analyses of Nei's genetic distance grouped all populations within a taxon into their own clusters”
e1“Numerous populations from six spruce taxa”
Title
Relationships among the Spruces (Picea, Pinaceae) of Southwestern
F. Thomas Ledig; Paul D. Hodgskiss; Konstantin V. K Rutovskii; et al. 2004
Other claims from this paper (13)
- Observation Isozyme loci clearly separated each of the six spruce taxa.
- Observation Spruces from Flys Peak, Arizona, joined a P. engelmannii cluster and were not a bridge to P. mexicana.
- Observation Spruces from Cerro Mohinora, Chihuahua, were clearly P. mexicana and not hybrids of P. chihuahuana and P. pungens.
- Observation P. chihuahuana and P. martinezii were separated as distinct species.
- Observation P. chihuahuana and P. martinezii formed a sister-species group.
- Observation Picea engelmannii and P. mexicana formed a separate cluster.
- Association The genetic distance between Picea engelmannii and P. mexicana was similar to values associated with closely related species.
- Association The genetic distance between Picea engelmannii and P. mexicana was greater than distances typical of subspecies or varieties in conifers.
- Observation Picea pungens was clearly distinguished from P. engelmannii, although the two are frequently misidentified.
- Observation Picea pungens sometimes joined a P. chihuahuana-martinezii group and sometimes a P. engelmannii-mexicana group, depending on analysis.
- Observation Picea breweriana was well isolated from all other taxa.
- Observation DNA and isozyme phylogenies agreed with results from crossability studies.
- Observation DNA and isozyme phylogenies contradicted intrageneric relationships constructed largely on cone morphology.