Claim · model-written summary
Reproductive and nonreproductive stages had significant positive fine-scale genetic structure; juveniles did not.
- Taxon
- Trillium grandiflorum
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Trillium grandiflorume1 - Organ / stage
- R and NR stagese0
- Outcome
- fine-scale genetic structuree0
- Direction
- Significant positivee0
- Comparator
- J stagee0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Significant positive fine-scale genetic structure was detected in the R and NR stages, but not in the J stage”
e1“Trillium grandiflorum”
Title
Susan Kalisz; John D. Nason; Frances M. Hanzawa; et al. Evolution 2001. doi:10.1111/j.0014-3820.2001.tb00675.x
Other claims from this paper (11)
- Observation Genotypes had Hardy-Weinberg frequencies at all loci and stages.
- Observation Allele frequencies did not differ among stages.
- Observation F-statistics were indistinguishable from zero except a slightly negative reproductive-stage FIT.
- Observation Near-neighbor kinship was 0.122 in reproductive plants.
- Observation Near-neighbor kinship was 0.065 in nonreproductive plants.
- Observation Near-neighbor kinship was 0.027 in juveniles.
- Observation Near-neighbor reproductive and nonreproductive kinship corresponded approximately to half-sibs and first cousins.
- Method / resource The juvenile correlogram was within the simulated null expectation at the shortest and nearly all other distances.
- Mechanism Low recruitment, random mating and seed dispersal could account for loss of spatial genetic structure from reproductive to juvenile stages.
- Observation Low total allelic diversity was consistent with a possible past bottleneck.
- Recommendation A longitudinal stage-specific study is needed to distinguish historical events from local selection as causes of increasing structure.