Localization and organization of tRNA genes on the mitochondrial genomes of fertile and male sterile lines of maize

Maize mitochondrial (mt) tRNA genes were localized on the mt master circles of two fertile lines (WF9-N and B37-N) and of one cytoplasmic male sterile line (B37-cmsT) of maize. The three genomes contain 16 tRNA genes with 14 different anticodons which correspond to 13 amino acids. Out of these 16 tR...

Full description

Saved in:
Bibliographic Details
Published inMolecular & general genetics Vol. 223; no. 2; pp. 224 - 232
Main Authors Sangare, A, Weil, J.H, Grienenberger, J.M, Fauron, C, Lonsdale, D
Format Journal Article
LanguageEnglish
Published Germany 01.09.1990
Subjects
chloroplasts
chromosome mapping
comparisons
cytoplasmic male sterility
DNA probes
fertility
genes
Genes, Plant
genetic code
genome
Mitochondria - metabolism
mitochondrial DNA
Nucleic Acid Hybridization
pseudogenes
Restriction Mapping
RNA - genetics
RNA, Mitochondrial
RNA, Transfer - genetics
Sequence Homology, Nucleic Acid
transfer RNA
Zea mays
Zea mays - genetics
Online AccessGet more information

Cover

More Information
Summary:Maize mitochondrial (mt) tRNA genes were localized on the mt master circles of two fertile lines (WF9-N and B37-N) and of one cytoplasmic male sterile line (B37-cmsT) of maize. The three genomes contain 16 tRNA genes with 14 different anticodons which correspond to 13 amino acids. Out of these 16 tRNA genes, 6 show a high degree of homology with the corresponding chloroplast (cp) tRNA genes and were shown to originate from cp DNA insertions and to be expressed in the mitochondria. The organization of the mt tRNA genes in both fertile lines is similar. The same genes are found, in the same environment, as judged from the restriction maps, in fertile and male sterile lines that have the same nuclear background, but the relative organization of the mt tRNA genes on the master circle is completely different.
ISSN:0026-8925
1432-1874
DOI:10.1007/bf00265058