Inheritance of internal pigmentation in green cabbage (Brassica oleracea var. Capitata L.)

Autor: J. R. Baggett
Rok vydání: 1978
Předmět:
Zdroj: Euphytica. 27:593-599
ISSN: 1573-5060
0014-2336
DOI: 10.1007/bf00043187
Popis: Internal anthocyanin pigmentation (IP) in otherwise normally green cabbage occurs in a number of Oregon State University breeding lines. Extracted pigment, tested for spectral absorption and for color reactions with lead acetate and aluminium chloride, was similar but not necessarily identical to pigment extracted from red cabbage cultivar Redman. When IP line R52 was crossed with normal green line C70, the F1, F2 and backcross progenies indicated that IP at the intensity found in R52 was determined by a single factor in homozygous condition, with intermediate levels of IP expressed by the heterozygous genotypes. Modifying factors also appear to influence the level of IP. In the cross R52 (IP)×R51 (normal green), expression of IP in the F1 was much reduced. The F2 failed to fit the expected 3 IP: 1 green ratio due to an excess of green plants, but instead, closely fit a 9:7 ratio. This may have resulted from incomplete expression of IP because of modifiers, rather than from the effects of a second major gene. An allele at the A (anthocyanin) locus of B. oleracea is tentatively proposed and designated A IP or a IP pending further identification.
Databáze: OpenAIRE
Externí odkaz: