The Parthenogenesis of Wheat-rye Hybrid by the Influence of the Pollen of Haynaldia villosa
1956 Volume 69 Issue 815 Pages 236-238
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1956 Volume 69 Issue 815 Pages 236-238
1. In the present report, a result of cytogenetical study on a plant derived from TdicSa F1 (Triticum dicoccum var. atratum×Secale africanum F1) after the pollination with Haynaldia villosa is described.
2. The external characters of this plant, resemble these of TdicSa F1 in every point though somewhat inferior as shown in Table 1 and Fig. 1.
3. The number of somatic chromosomes of the plant is distinctly found to be 20 (Fig. 2).
4. The number of bivalents in one PMC at heterotypic metaphase varies from 0 to 3, and the frequency of it is tabulated in Table 2, OII being the mode. The results are the same as in the parent TdicSa F1.
5. Considering from the external characters and the meiosis of PMC's, this plant (having 2n=20 chromosomes) may be considered as having developed by parthenegenesis, influenced by the pollen of Haynaldia villosa, from an egg having 20 chromosomes.
