(Structure and expression of nuclear genes encoding rubisco activase)

The coordinated expression of genes distributed between the nuclear and plastid genomes is essential for the assembly of functional chloroplasts. Although the nucleus has a pre–eminent role in controlling chloroplast biogenesis, there is considerable evidence that the expression of nuclear genes encoding photosynthesis–related proteins is regulated by signals from plastids. Perturbation of several plastid–located processes, by inhibitors or in mutants, leads to decreased transcription of a set of nuclear photosynthesis–related genes. Characterization of arabidopsis gun ( genomes uncoupled ) mutants, which express nuclear genes in the presence of norflurazon or lincomycin, has provided evidence for two separate signalling pathways, one involving tetrapyrrole biosynthesis intermediates and the other requiring plastid protein synthesis. In addition, perturbation of photosynthetic electron transfer produces at least two different redox signals, as part of the acclimation to altered light conditions. The recognition of multiple plastid signals requires a reconsideration of the mechanisms of regulation of transcription of nuclear genes encoding photosynthesis–related proteins.

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Nuclear genes encoding mitochondrial proteins in yeast

Trends in Biochemical Sciences ◽

10.1016/0968-0004(85)90189-6 ◽

1985 ◽

Vol 10 (5) ◽

pp. 192-194 ◽

Cited By ~ 14

Author(s):

Michael Douglas ◽

Masaharu Takeda

Keyword(s):

Nuclear Genes ◽

Mitochondrial Proteins ◽

Genes Encoding

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Anterograde and Retrograde Regulation of Nuclear Genes Encoding Mitochondrial Proteins during Growth, Development, and Stress

Molecular Plant ◽

10.1093/mp/ssu037 ◽

2014 ◽

Vol 7 (7) ◽

pp. 1075-1093 ◽

Cited By ~ 83

Author(s):

Sophia Ng ◽

Inge De Clercq ◽

Olivier Van Aken ◽

Simon R. Law ◽

Aneta Ivanova ◽

...

Keyword(s):

Nuclear Genes ◽

Mitochondrial Proteins ◽

Retrograde Regulation ◽

Genes Encoding ◽

Growth Development

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Mutations Affecting Light Regulation of Nuclear Genes Encoding Chloroplast Glyceraldehyde-3-Phosphate Dehydrogenase in Arabidopsis

PLANT PHYSIOLOGY ◽

10.1104/pp.007849 ◽

2002 ◽

Vol 130 (3) ◽

pp. 1476-1486 ◽

Cited By ~ 4

Author(s):

C. S. Chan

Keyword(s):

Light Regulation ◽

Nuclear Genes ◽

Genes Encoding

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Divergent mitochondrial and nuclear OXPHOS genes are candidates for genetic incompatibilities inFicedulaFlycatchers

10.1101/588756 ◽

2019 ◽

Author(s):

Eva van der heijden ◽

S. Eryn McFarlane ◽

Tom van der Valk ◽

Anna Qvarnström

Keyword(s):

Energy Metabolism ◽

Nuclear Dna ◽

Resting Metabolic Rate ◽

Population Expansion ◽

Nuclear Genes ◽

F1 Hybrids ◽

Relative Role ◽

Synonymous Mutations ◽

Genes Encoding ◽

Hybrid Dysfunction

AbstractHybrid dysfunction is an important source of reproductive isolation between emerging species. Bateson-Dobzhansky-Muller incompatibilities are theoretically well-recognized as the underlying cause of low hybrid dysfunction. However, especially in wild populations, little empirical evidence exists for which genes are involved in such incompatibilities. The relative role of ecological divergence in causing the build-up of genetic incompatibilities in relation to other processes such as genomic conflict therefore remains largely unknown. Genes involved in energy metabolism are potential candidates for genetic incompatibilities, since energy metabolism depends on co-expression of mitochondrial DNA (mtDNA) and nuclear DNA (nDNA) leading to mitonuclear coadaptation. When mitochondrial and nuclear genes lacking a co-evolutionary history appear together in hybrids, incompatibilities could arise.Ficedulaflycatcher F1 hybrids have a higher resting metabolic rate (RMR) compared to the parental species, which could be a sign of genetic incompatibilities between energy metabolism genes that diverged in response to environmental differences while the species were in allopatry. Based on sequences of 15 mitochondrial genes of 264 individuals, we show that the two species have divergent mtDNA caused by the build-up of mainly synonymous mutations and a few non-synonymous mutations. Pied flycatcher mitogenomes show evidence of non-neutrality, indicating a selective sweep or population expansion. There is little variation in the nuclear OXPHOS-related proteins and no significant deviation from neutrality, however, specific codon identified sites might be under positive selection in both mitochondrial and nuclear genes encoding OXPHOS proteins for complex I and III. Taken together, these diverged mitonuclear genes therefore constitute possible candidates underlying, at least part of the genetic incompatibilities that cause hybrid dysfunction in crosses between collared and pied flycatchers.

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