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Differential expression of the eight genes of the petunia ribulose bisphosphate carboxylase small subunit multi‐gene family
Author(s) -
Dean Caroline,
Elzen Peter,
Tamaki Stanley,
Dunsmuir Pamela,
Bedbrook John
Publication year - 1985
Publication title -
the embo journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.484
H-Index - 392
eISSN - 1460-2075
pISSN - 0261-4189
DOI - 10.1002/j.1460-2075.1985.tb04045.x
Subject(s) - genetic variants , biology , library science , gene , genetics , computer science , genotype
Of the eight nuclear genes in the plant multi‐gene family which encodes the small subunit (rbcS) of Petunia (Mitchell) ribulose bisphosphate carboxylase, one rbcS gene accounts for 47% of the total rbcS gene expression in petunia leaf tissue. Expression of each of five other rbcS genes is detected at levels between 2 and 23% of the total rbcS expression in leaf tissue, while expression of the remaining two rbcS genes is not detected. There is considerable variation (500‐fold) in the levels of total rbcS mRNA in six organs of petunia (leaves, sepals, petals, stems, roots and stigmas/anthers). One gene, SSU301, showed the highest levels of steady‐state mRNA in each of the organs examined. We discuss the differences in the steady‐state mRNA levels of the individual rbcS genes in relation to their gene structure, nucleotide sequence and genomic linkage.