Claim · model-written summary
Pentaploid meiosis was highly abnormal, with univalents, laggards and micronuclei.
GlycineNot reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“meiotic stages were highly abnormal in the pentaploid, with univalents, laggards, and micronuclei”
t0“Cytogenetics of a synthesized allopentaploid (2n = 5x = 100) in the genus Glycine”
Title
Cytogenetics of a synthesized allopentaploid (2n = 5x = 100) in the genus Glycine subgenus Glycine
R. J. Singh; T. Hymowitz Genome 1991. doi:10.1139/g91-116
Other claims from this paper (7)
- Observation The pentaploid closely resembled tetraploid G. tomentella morphologically.
- Observation The pentaploid was less vigorous than hexaploids for several morphological traits.
- Observation Tetraploid, pentaploid and hexaploid plants were visually indistinguishable.
- Observation Despite abnormal meiosis, the pentaploid set normal pods and seeds.
- Observation The pentaploid did not breed true, with progeny chromosome counts of 86 to 97.
- Observation A 90 chromosome plant yielded progeny with 81 to 86 chromosomes.
- Mechanism The authors infer rapid preferential loss of G. canescens chromosomes and eventual stabilization at tetraploidy.