Claim · model-written summary
Meiotic behavior of the polyploid cereals determines the diverse segregation ratios obtained from mutants.
- Taxon
- cultivated oats and wheat
Avena sativa
Triticum aestivume0 - Outcome
- segregation ratiose2
- Qualifier
- meiotic behaviore1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The origin of the mutants and their survival and peculiar genetic behavior are all bound up with the polyploid nature of cultivated oats and wheat”
e1“The frequency with which different types of gametes are formed is determined by meiotic behavior”
e2“determine the diverse segregation ratios that may be obtained from phenotypically similar mutants”
Title
MUTATIONS IN POLYPLOID CEREALS: I. INTRODUCTORY OUTLINE
C. Leonard Huskins; Gerhard F. Sander Canadian Journal of Research/Canadian journal of research 1949. doi:10.1139/cjr49c-027
Other claims from this paper (7)
- Observation Fatuoid, steriloid, speltoid, compactoid and subnormal mutants arise by mutation that in most cases is a chromosome aberration.
- Observation Deficiency is definitely established in all three speltoid segregation types, Series alpha, beta and gamma, of wheat.
- Observation In speltoid wheat, the deficiency ranges from a whole chromosome C down to a segment too small to be seen microscopically.
- Observation In oat mutants the deficiencies are similar, and their range apparently extends below the limit of cytological and genetic determination.
- Observation In compactoid and subnormal wheats, duplication of the whole C chromosome or of its major arm is involved.
- Observation A distinction can almost invariably be drawn between hybrids from natural crossing of wild and cultivated oats and the mutants.
- Mechanism The polyploid nature of cultivated oats and wheat particularly affects the viability of deficient gametes.