Abstract
A novel ATP synthase subunit 9 gene (atp9) was identified in the mitochondrial genome of a Petunia somatic hybrid line (13-133) which was produced from a fusion between Petunia lines 3688 and 3704. The novel gene was generated by intergenomic recombination between atp9 genes from the two parental plant lines. The entire atp9 coding region is represented on the recombinant gene. Comparison of gene sequences indicate that the 5' transcribed region is contributed by an atp9 gene from 3704 and the 3' transcribed region is contributed by an atp9 gene from 3688. The recombinant atp9 gene is transcriptionally active. The location of the 5' and 3' transcript termini are conserved with respect to the parental genes, resulting in the production of hybrid transcripts.
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