Summary
Internal anthocyanin pigmentation (IP), previously reported to be controlled by a single gene dominant to aa of normal green cabbage, was studied further to determine its relationship to A RC A RC of red cabbage. When IP line R52 was crossed with an early red cabbage line. F1 heads were pigmented throughout, but pigment intensity was intermediate. Subjective classification of F2 plants by pigmentation intensity and distribution scores gave a ratio of 1 intense red throughout (red cabbage):2 medium red throughout:1 medium to light red, restricted to the central portion of the head (IP). The genotypes A RC A RC: A RC A IP: A IP A IP. respectively, are proposed to explain these 3 phenotypic classes. F2 progenies contained no normal green plants, supporting the conclusion that A IP and A RC are alleles.
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References
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Technical Paper 7052, Oregon Agricultural Experiment Station.
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Baggett, J.R., Kean, D. The allelic relationship between A IP(internal pigmentation) and A RC (red cabbage) in Brassica oleracea var. capitata L.. Euphytica 33, 587–590 (1984). https://doi.org/10.1007/BF00021161
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DOI: https://doi.org/10.1007/BF00021161