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The mitochondrial genome of fertile maize (Zea maysL.) contains two copies of the gene encoding theα-subunit of the F1-ATPase

✍ Scribed by Peter G. Isaac; Axel Brennicke; Sue M. Dunbar; Christopher J. Leaver

Publisher
Springer-Verlag
Year
1985
Tongue
English
Weight
740 KB
Volume
10
Category
Article
ISSN
0172-8083

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✦ Synopsis

In contrast to the situation in animals and fungi the a-subunit of the mitochondrial F1-ATPase is encoded by two identical mitochondrial genes (A TP A) in male fertile maize (Zea mays L.). Cytoplasmic male sterile (T, C and S) maize mitochondrial genomes only contain a single copy of the gene. Sequence analysis reveals that the uninterrupted coding region of both copies of the gene is 1,524 bp long and encodes a polypeptide of 508 amino acids with a molecular weight of 55,117. The predicted amino acid sequence shares over 60% homology with the nuclear encoded a-subunit from yeast and bovine ATPases and approx. 50% with the corresponding chloroplast and bacterial polypeptides.

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