Claim · model-written summary
Tetraploid zinnia species should tentatively be assigned the genomic formulae given in the paper.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Verbatim
t0“PERENNIAL ZINNIAS”
e4“Morphological data and chromosomal pairing in the polyploid hybrids suggest that the tetraploid species should be tentatively assigned genomic formulae as follows”
Title
HYBRIDIZATION STUDIES IN PERENNIAL ZINNIAS
Andrew M. Torres American Journal of Botany 1964. doi:10.1002/j.1537-2197.1964.tb06672.x
Other claims from this paper (4)
- Observation Chromosome pairing and chiasmata frequency indicate that the genomes of the diploid zinnia species are homologous.
- Association Pigment production in ray flowers segregates as a simple dominant over colorless in F2 progeny of Z. juniperifolia crossed with Z. acerosa.
- Observation The genomic constitution of Z. juniperifolia is designated A1A1.
- Observation The origin of the polyploid zinnia taxa was more circuitous than simple hybridization followed by chromosome doubling.