Animal mitochondrial genomes
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چکیده
منابع مشابه
SURVEY AND SUMMARY Animal mitochondrial genomes
Animal mitochondrial DNA is a small, extrachromosomal genome, typically ∼16 kb in size. With few exceptions, all animal mitochondrial genomes contain the same 37 genes: two for rRNAs, 13 for proteins and 22 for tRNAs. The products of these genes, along with RNAs and proteins imported from the cytoplasm, endow mitochondria with their own systems for DNA replication, transcription, mRNA processin...
متن کاملThe Evolution of tRNA-Leu Genes in Animal Mitochondrial Genomes
Animal mitochondrial genomes usually have two transfer RNAs for Leucine: one, with anticodon UAG, translates the four-codon family CUN, whilst the other, with anticodon UAA, translates the twocodon family UUR. These two genes must differ at the third anticodon position, but in some species the genes differ at many additional sites, indicating that these genes have been independent for a long ti...
متن کاملMitochondrial genomes: anything goes.
Mitochondria have their own genetic system – a vestigial genome originating from an endosymbiotic a-proteobacterial ancestor. The genetic function of mitochondrial DNA (mtDNA) is well-conserved, being involved in a maximum of five mitochondrial processes: invariantly in respiration and/or oxidative phosphorylation and translation, and also in transcription, RNA maturation and protein import. Re...
متن کاملLophotrochozoan mitochondrial genomes.
Progress in both molecular techniques and phylogenetic methods has challenged many of the interpretations of traditional taxonomy. One example is in the recognition of the animal superphylum Lophotrochozoa (annelids, mollusks, echiurans, platyhelminthes, brachiopods, and other phyla), although the relationships within this group and the inclusion of some phyla remain uncertain. While much of th...
متن کاملThe evolution of animal genomes.
Genome sequences are now available for hundreds of species sampled across the animal phylogeny, bringing key features of animal genome evolution into sharper focus. The field of animal evolutionary genomics has focused on identifying and classifying the diversity genomic features, reconstructing the history of evolutionary changes in animal genomes, and testing hypotheses about the evolutionary...
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ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 1999
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/27.8.1767