Nucleotide sequence and transcriptional analysis of a mitochondrial plasmid from a cytoplasmic male-sterile line of sunflower
Canal, L. ; Crouzillat, D. ; Flamand, M. C. ; Perrault, A. ; Boutry, M. ; Ledoigt, G.
Springer
Published 1991
Springer
Published 1991
| ISSN: |
1432-2242
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|---|---|
| Keywords: |
Mitochondrial plasmids ; Mitochondrial DNA ; Sunflower
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Biology
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| Notes: |
Summary A mitochondrial plasmid of 1,939 bp (P2) from a cytoplasmic male-sterile line of sunflower has been cloned and sequenced. It presents 437 bp of near-perfect homology to the 1.4-kb mitochondrial plasmid P1 from sunflower. Sequences homologous to P2 were found in nuclear DNA. P2 was transcribed into a major 980-nucleotide (nt) RNA molecule and two minor transcripts of 570 and 520 nt. They were all transcribed from the same strand and within the region nonhomologous to P1. A single 5′ boundary and three 3′ termini were determined for P2 transcripts. The 5′ end is similar to a consensus sequence for plant mitochondrial genes. No evidence of translation products can be provided.
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| Type of Medium: |
Electronic Resource
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| URL: |