Cost of Having the Largest Mitochondrial Genome : Evolutionary Mechanism of Plant Mitochondrial Genome
Joint Authors
Kubo, Tomohiko
Kitazaki, Kazuyoshi
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-05-30
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
The angiosperm mitochondrial genome is the largest and least gene-dense among the eukaryotes, because its intergenic regions are expanded.
There seems to be no functional constraint on the size of the intergenic regions; angiosperms maintain the large mitochondrial genome size by a currently unknown mechanism.
After a brief description of the angiosperm mitochondrial genome, this review focuses on our current knowledge of the mechanisms that control the maintenance and alteration of the genome.
In both processes, the control of homologous recombination is crucial in terms of site and frequency.
The copy numbers of various types of mitochondrial DNA molecules may also be controlled, especially during transmission of the mitochondrial genome from one generation to the next.
An important characteristic of angiosperm mitochondria is that they contain polypeptides that are translated from open reading frames created as byproducts of genome alteration and that are generally nonfunctional.
Such polypeptides have potential to evolve into functional ones responsible for mitochondrially encoded traits such as cytoplasmic male sterility or may be remnants of the former functional polypeptides.
American Psychological Association (APA)
Kitazaki, Kazuyoshi& Kubo, Tomohiko. 2010. Cost of Having the Largest Mitochondrial Genome : Evolutionary Mechanism of Plant Mitochondrial Genome. Journal of Botany،Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-485729
Modern Language Association (MLA)
Kitazaki, Kazuyoshi& Kubo, Tomohiko. Cost of Having the Largest Mitochondrial Genome : Evolutionary Mechanism of Plant Mitochondrial Genome. Journal of Botany No. 2010 (2010), pp.1-12.
https://search.emarefa.net/detail/BIM-485729
American Medical Association (AMA)
Kitazaki, Kazuyoshi& Kubo, Tomohiko. Cost of Having the Largest Mitochondrial Genome : Evolutionary Mechanism of Plant Mitochondrial Genome. Journal of Botany. 2010. Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-485729
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-485729