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. 1981 Apr;19(3-4):255-61.
doi: 10.1007/BF00504272.

Polypeptide composition of fraction 1 protein of the somatic hybrid between Petunia parodii and Petunia parviflora

A Kumar, D Wilson, E C Cocking

Polypeptide composition of fraction 1 protein of the somatic hybrid between Petunia parodii and Petunia parviflora

A Kumar et al. Biochem Genet. 1981 Apr.

Abstract

The analysis of the subunit polypeptide composition of Fraction 1 protein provides information on the expression of both chloroplast and nuclear genomes. Fraction 1 protein, isolated from leaves of the somatic hybrid plants derived form the fusion of protoplasts of Petunia parodii and P. parviflora, was analyzed for its subunit polypeptide composition by isoelectric focusing in 8 M urea. The fraction 1 protein enzyme oligomer in the somatic hybrid plants contained small subunits resulting from the expression of both parental nuclear genomes, but probably only one of the parental large subunits, namely that of P. parodii. The relevance of such somatic hybrid material for the study of nucleocytoplasmic interrelationship is discussed, as well as the use of these fraction 1 protein isoelectric focusing patterns for the analysis of taxonomic relationships in Petunia.

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