Uniparental Inheritance Promotes Adaptive Evolution in Cytoplasmic Genomes
A computational model is used to show that the unique biology of cytoplasmic genomes—specifically their organization into host cells and their uniparental (maternal) inheritance—enable them to undergo effective adaptive evolution.
Uniparental mitochondrial DNA inheritance is not affected in Ustilago maydis Δatg11 mutants blocked in mitophagy
- BiologyBMC Microbiology
This study suggests that selective autophagy does not contribute to UPI in U. maydis, but is rather a consequence of selective mtDNA elimination in response to mitochondrial damage.
Cytoplasmic inheritance in green algae: patterns, mechanisms and relation to sex type
- BiologyJournal of Plant Research
To trace the evolutionary history of cytoplasmic inheritance in green algae, the relations between uniparental inheritance and sex type were considered in isogamous, anisogamy, and oogamous species using sex-specific features that might be nearly universal among Chlorophyta.
Organellar Genomes of Flowering Plants
It is shown that mitochondria act as one of the major mechanisms by which genetic novelty is brought about in the nuclear genome by working in harmony for optimum functioning of the plant cell.
Current Perspectives on Uniparental Mitochondrial Inheritance in Cryptococcus neoformans
The current knowledge regarding the cellular features as well as the molecular underpinnings of UMI in Cryptococcus during the mating process are discussed, and open questions that need to be answered to solve the mystery of U MI in this eukaryotic microbe are discussed.
Experimental evolutionary studies on the genetic autonomy of the cytoplasmic genome “plasmon” in the Triticum (wheat)–Aegilops complex
- BiologyProceedings of the National Academy of Sciences
It is shown experimentally that the cytoplasmic organellar genes of Aegilops remained autonomous from coexisting nuclear genes of wheat, in their replication and transmission, for more than half a century, and infer that the Cytoplasmaic genome “plasmon” has retained genetic autonomy during 0.5 My of evolution of the Triticum–Aegilops complex, indicating its usefulness in tracing the maternal lineage of a species.
Maternal inheritance of plastids and mitochondria in Cycas L. (Cycadaceae)
- BiologyMolecular Genetics and Genomics
The data suggest that the maternal plastid and mitochondrial inheritance in Cycas, native to the old world, are the same as seen in seed plants.
Inheritance of spheroid body and plastid in the raphid diatom Epithemia (Bacillariophyta) during sexual reproduction
This study is the first to report the inheritance pattern of the spheroid body and will contribute to better understand the evolutionary state of this organelle.
Step-wise elimination of α-mitochondrial nucleoids and mitochondrial structure as a basis for the strict uniparental inheritance in Cryptococcus neoformans
- BiologyScientific Reports
In most sexual eukaryotes, mitochondrial (mt) DNA is uniparentally inherited, although the detailed mechanisms underlying this phenomenon remain controversial. The most widely accepted explanations…
Endosymbiotic Gene Transfer in the Nucleomorph containing organisms Bigelowiella natans and Guillardia theta
To understand the process of EGT and endosymbiosis in general, the nuclear genomes of the cryptophyte Guillardia theta and the chlorarachniophyte Bigelowiella natans were sequenced and nuclear genes whose encoded proteins appear to function in the mitochondrion were investigated.
SHOWING 1-7 OF 7 REFERENCES
The inheritance of genes in mitochondria and chloroplasts: laws, mechanisms, and models.
- BiologyAnnual review of genetics
The inheritance of mitochondrial and chloroplast genes differs from that of nuclear genes in showing vegetative segregation, uniparental inheritance, intracellular selection, and reduced…
The inheritance of organelle genes and genomes: patterns and mechanisms.
The recent observation of a sex-determining gene in the basidiomycete yeast Cryptococcus neoformans, which controls mitochondrial DNA inheritance, has opened up potentially exciting research opportunities for identifying specific molecular genetic pathways that control organelle inheritance.
Deleterious mutation accumulation in organelle genomes
The authors' results suggest an almost universal increase in the fixation probabilities of mildly deleterious mutations arising in mitochondrial and chloroplast genomes relative to those arising in the recombining nuclear genome.
A broad survey of recombination in animal mitochondria.
- BiologyMolecular biology and evolution
A survey of 279 animal mtDNA data sets shows that there is widespread evidence of recombination; for one test as many as 14.2% of the data sets reject a model of clonal inheritance and in several data sets, including primates, the recombinants can be identified visually.
A reanalysis of the indirect evidence for recombination in human mitochondrial DNA
The results suggest a lack of evidence for recombination in human mtDNA, and the relationship between linkage disequilibrium (LD) and distance between sites under a variety of conditions using two measures of LD, r2 and ∣D′∣.
Biological Sciences West
- Biological Sciences West
- E-mail: firstname.lastname@example.org