Transcription initiation sites for sorghum mitochondrial atp9 are positioned immediately 3′ to trnfM

Transcription initiation sites for sorghum mitochondrial atp9 are positioned immediately 3′ to... Sorghum mitochondrial atp9 is polymorphic among male-sterile cytoplasms, but each cytoplasm is characterized by a major 650 nt transcript, regardless of fertility status. The gene is positioned 323 bp 3′ to trnfM. Primer extension revealed multiple atp9 5′ transcript termini, distributed from +1 to +28 3′ to trnfM; the termini could be labeled with polynucleotide kinase, suggesting that they result from the maturation of trnfM. Guanylyltransferase experiments, however, showed that four of the termini were capable. The juxtaposition of a putative promoter 3′ to trnfM results in a unique atp9 transcript population consisting of primary and processed transcripts. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

Transcription initiation sites for sorghum mitochondrial atp9 are positioned immediately 3′ to trnfM

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 1997 by Kluwer Academic Publishers
Subject
Life Sciences; Biochemistry, general; Plant Sciences; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1023/A:1005814812438
Publisher site
See Article on Publisher Site

Abstract

Sorghum mitochondrial atp9 is polymorphic among male-sterile cytoplasms, but each cytoplasm is characterized by a major 650 nt transcript, regardless of fertility status. The gene is positioned 323 bp 3′ to trnfM. Primer extension revealed multiple atp9 5′ transcript termini, distributed from +1 to +28 3′ to trnfM; the termini could be labeled with polynucleotide kinase, suggesting that they result from the maturation of trnfM. Guanylyltransferase experiments, however, showed that four of the termini were capable. The juxtaposition of a putative promoter 3′ to trnfM results in a unique atp9 transcript population consisting of primary and processed transcripts.

Journal

Plant Molecular BiologySpringer Journals

Published: Sep 29, 2004

References

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