Claim · model-written summary
The intraspecific hybrid had a partly recessive phenotype due to loss of a chromosome segment containing the wild type locus.
- Taxon
- Haplopappus
Haplopappust0 - Material
- intraspecific hybride0
- Gene
- wild type locuse0
- Outcome
- partly recessive phenotypee0
- Qualifier
- loss of a chromosome segmente0
Not reportedCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The intraspecific hybrid exhibited a partly recessive phenotype due to loss of a chromosome segment containing the wild type locus”
t0“Haplopappus”
Title
Mitotic Instability in Haplopappus: Structural and Genic Causes
R. C. Jackson American Journal of Botany 1985. doi:10.2307/2443518
Other claims from this paper (8)
- Observation Mitotic instability occurred in an intraspecific H. gracilis hybrid.
- Observation Mitotic instability occurred in an interspecific H. arenarius and H. aureus hybrid.
- Mechanism The interspecific hybrid showed abnormal morphological development due to chromatin loss.
- Observation Both hybrids grew more slowly, were smaller and were weaker than parents.
- Association Hybrid weakness correlated with chromatin loss from cleavage during cell wall formation across long chromosome arms.
- Mechanism A highly unequal translocation caused chromosome cleavage in H. gracilis.
- Mechanism Genome size disparity caused chromosome cleavage in the interspecific hybrid.
- Mechanism Initial chromosome cleavage led to a breakage fusion bridge cycle persisting in some H. gracilis backcross progeny.