Claim · model-written summary
All ecotypes have 5S rDNA on short arms of chromosomes 4 and 5.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Organ / stage
- short arms of chromosomes 4 and 5e0
- Gene
- 5S rDNAe0
- Outcome
- contain 5S rDNAe0
Not reportedMaterialCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All ecotypes contain 5S rDNA in the short arms of chromosomes 4 and 5.”
t0“Arabidopsis thaliana”
Title
Cytogenetics for the model system Arabidopsis thaliana
Paul Fransz; Sue Armstrong; Carlos Alonso‐blanco; et al. The Plant Journal 1998. doi:10.1046/j.1365-313x.1998.00086.x
Other claims from this paper (12)
- Method / resource A detailed Arabidopsis karyotype was presented.
- Observation Five pachytene bivalents measured 50 to 80 microns.
- Observation Chromosomes 1 and 5 are metacentric.
- Observation Chromosomes 2 and 4 are acrocentric with subterminal NORs.
- Observation Chromosome 3 is submetacentric and medium sized.
- Observation Length variation between pachytene bivalents came from their short arms.
- Method / resource Chromosomes were identified by lengths, arm ratios, NOR knobs, and FISH signals.
- Observation Six ecotypes varied in number and map positions of 5S rDNA loci.
- Observation Three patterns of chromosome 3 5S rDNA locus position or presence were observed.
- Method / resource Repetitive DNA clones resolved pericentromeric heterochromatin into a central and two flanking domains.
- Observation Upper flanking domains of chromosomes 4 and 5, and sometimes 3, contain a 5S rDNA locus.
- Method / resource Unique cosmid and YAC detection showed detailed cytogenetic physical mapping is feasible.