Claim · model-written summary
The tetraploid is treated taxonomically as a race of Z. juniperifolia.
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Verbatim
e0“Taxonomically the tetraploid is considered a race of Z. juniperifolia”
Title
THE CHROMOSOME RACES OF ZINNIA JUNIPERIFOLIA
Andrew M. Torres American Journal of Botany 1965. doi:10.1002/j.1537-2197.1965.tb07245.x
Other claims from this paper (6)
- Association Chromosome number is positively correlated with floral and vegetative characters, including pollen size.
- Observation Chiasmata frequency is about 0.63 per chromosome in diploids.
- Observation Chiasmata frequency is about 0.62 per chromosome in tetraploids.
- Observation Multivalents are common in the tetraploid.
- Intervention effect Attempts to induce tetraploids with colchicine failed.
- Observation The tetraploid may be of autoploid origin.