Claim · model-written summary
Most A. asplenioides individuals had rugose perispore surfaces with a reticulum of inflated folds.
- Taxon
- A. asplenioides
Athyrium asplenioidese2 - Outcome
- rugosee2
- Qualifier
- with a reticulum of inflated foldse2
Verbatim
e2“all A. angustum individuals had papillose surfaces, whereas most A. asplenioides individuals were rugose with a reticulum of inflated folds”
Title
Carol Lynn Kelloff; Judith Skog; Laura Adamkewicz; et al. American Fern Journal 2002. doi:10.1640/0002-8444(2002)092[0185:doenaa]2.0.co;2
Other claims from this paper (19)
- Observation All A. angustum individuals had papillose perispore surfaces.
- Observation Spores from the northernmost A. asplenioides population showed intermediacy suggestive of introgressive hybridization with A. angustum.
- Observation Allozyme polymorphism in populations (P=36.5%) was near the means for angiosperms and ferns.
- Observation Allozyme polymorphism in populations (A=1.97) was near the means for angiosperms and ferns.
- Observation Allozyme polymorphism in populations (HE=0.129) was near the means for angiosperms and ferns.
- Observation Genotype frequencies at most loci in all populations were in Hardy-Weinberg equilibrium.
- Observation Most alleles were shared among all populations.
- Association Allele frequencies at Idh-1, Pgi-2 and Pgm-2 were significantly divergent between A. angustum and A. asplenioides.
- Association Allele frequencies at Tpi-2 were significantly divergent between A. angustum and A. asplenioides.
- Association Idh-1 approached fixation for alternate alleles.
- Observation FST ranged from 0.008 to 0.459 for individual loci.
- Observation FST across loci was 0.255.
- Observation Differences between the two taxa accounted for most allele frequency divergence among populations (FXY=0.216).
- Observation Allele frequency divergence among populations was FXY=0.238.
- Observation UPGMA analysis resulted in two principal clusters, each comprising populations of one taxon.
- Observation Populations of A. angustum were joined within their cluster at S=0.938.
- Observation Populations of A. asplenioides were joined within their cluster at S=0.945.
- Observation The two taxon clusters were joined at S=0.848.
- Recommendation The two taxa merit distinction at the rank of subspecies or species.