Claim · model-written summary
Nine types of multiple rearrangements were identified.
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- multiple rearrangementse0
- Value
- 9 typese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“multiple rearrangements (9 types), pericentric inversions (9 types), and paracentric inversions (3 types)”
t0“wheat”
Title
Chromosomal rearrangements in wheat: their types and distribution
E. D. Badaeva; O. S. Dedkova; G. Gay; et al. Genome 2007. doi:10.1139/g07-072
Other claims from this paper (19)
- Observation Chromosomal rearrangements occurred in 70 of 208 tetraploid wheat accessions.
- Observation Chromosomal rearrangements occurred in 69 of 252 hexaploid wheat accessions.
- Observation Chromosomal rearrangements occurred in 3 of 39 triticale forms.
- Observation The study identified 58 types of major chromosomal rearrangements.
- Observation Six chromosome modifications of unknown origin were observed.
- Observation Single translocations were the most frequent aberration type, with 39.
- Observation Nine types of pericentric inversions were identified.
- Observation Three types of paracentric inversions were identified.
- Observation Breakpoints were at or near the centromere in 60 rearranged chromosomes.
- Observation Breakpoints were in interstitial chromosome regions in 52 cases.
- Observation Interstitial translocation breakpoints were often at C-band borders or between adjacent C-bands.
- Observation B-genome chromosomes were most often involved in translocations, then A- and D-genome chromosomes.
- Observation Individual wheat chromosomes differed in translocation frequency.
- Observation Most translocations were found in one or two accessions.
- Observation Eleven translocation variants had relatively high frequency or occurred across varieties and species.
- Observation Translocation spectra and frequencies varied significantly by geography.
- Observation The highest proportions of rearranged genotypes occurred in Central Asia, the Middle East, Northern Africa, and France.
- Observation Tetraploid wheat from Transcaucasia had a low proportion of aberrant genotypes.
- Observation Hexaploid wheat from Middle Asia and Eastern Europe had a low proportion of aberrant genotypes.