Nuclear genes control changes in the organization of the mitochondrial genome in tissue cultures derived from immature embryos of wheat

1992 ◽  
Vol 21 (6) ◽  
pp. 515-520 ◽  
Author(s):  
C. Hartmann ◽  
J. De Buyser ◽  
Y. Henry ◽  
M. -C. Morère-Le Paven ◽  
T. A. Dyer ◽  
...  
Keyword(s):  
Mitochondrial Genome ◽  
Nuclear Genes ◽  
Immature Embryos ◽  
Tissue Cultures

scholarly journals Co-ordinate decrease in the expression of the mitochondrial genome and nuclear genes for mitochondrial proteins in the lactation-induced mitochondrial hypotrophy of rat brown fat

1995 ◽  
Vol 308 (3) ◽  
pp. 749-752 ◽  
Author(s):  
I Martin ◽  
M Giralt ◽  
O Viñas ◽  
R Iglesias ◽  
T Mampel ◽  
...  
Keyword(s):  
Cytochrome C ◽  
Mitochondrial Genome ◽  
Cytochrome C Oxidase ◽  
Molecular Mechanisms ◽  
Uncoupling Protein ◽  
Relative Content ◽  
Nuclear Genes ◽  
Mitochondrial Proteins ◽  
Mrna Levels ◽  
Brown Adipose

The relative abundance of the mitochondrial-encoded mRNAs for cytochrome c oxidase subunit II and NADH dehydrogenase subunit I was lower in brown adipose tissue (BAT) from lactating rats than in virgin controls. This decrease was in parallel with a significant decrease in mitochondrial 16 S rRNA levels and in the relative content of mitochondrial DNA in the tissue. BAT from lactating rats showed lowered mRNA expression of the nuclear-encoded genes for the mitochondrial uncoupling protein, subunit IV of cytochrome c oxidase and the adenine nucleotide translocase isoforms ANT1 and ANT2, whereas mRNA levels for the ATP synthase beta-subunit were unchanged. However, the relative content of this last protein was lower in BAT mitochondria from lactating rats than in virgin controls. It is concluded that lactation-induced mitochondrial hypotrophy in BAT is associated with a co-ordinate decrease in the expression of the mitochondrial genome and nuclear genes for mitochondrial proteins. This decrease is caused by regulatory events acting at different levels, including pre- and post-transcriptional regulation. BAT appears to be a useful model with which to investigate the molecular mechanisms involved in the co-ordination of the expression of the mitochondrial and nuclear genomes during mitochondrial biogenesis.

Identification of new mitochondrial genome organizations in wheat plants regenerated from somatic tissue cultures

1989 ◽  
Vol 77 (2) ◽  
pp. 169-175 ◽  
Author(s):  
C. Hartmann ◽  
Y. Henry ◽  
J. De Buyser ◽  
C. Aubry ◽  
A. Rode
Keyword(s):  
Mitochondrial Genome ◽  
Somatic Tissue ◽  
Tissue Cultures

Extensive mitochondrial DNA variation in somatic tissue cultures initiated from wheat immature embryos

1987 ◽  
Vol 12 (5) ◽  
pp. 369-376 ◽  
Author(s):  
André Rode ◽  
Caroline Hartmann ◽  
Denis Falconet ◽  
Bernard Lejeune ◽  
Françis Quétier ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Somatic Tissue ◽  
Immature Embryos ◽  
Tissue Cultures ◽  
Dna Variation

Time-course of mitochondrial genome variation in wheat embryogenic somatic tissue cultures

Plant Science ◽  
1987 ◽  
Vol 53 (2) ◽  
pp. 191-198 ◽  
Author(s):  
Caroline Hartmann ◽  
Jacques de Buyser ◽  
Yves Henry ◽  
Denis Falconet ◽  
Bernard Lejeune ◽  
...  
Keyword(s):  
Mitochondrial Genome ◽  
Time Course ◽  
Somatic Tissue ◽  
Tissue Cultures ◽  
Genome Variation

Interactions between nuclear genes and a foreign mitochondrial genome in the redbelly dace Chrosomus eos

2015 ◽  
Vol 189 ◽  
pp. 80-86 ◽  
Author(s):  
Léo Deremiens ◽  
Logan Schwartz ◽  
Annie Angers ◽  
Hélène Glémet ◽  
Bernard Angers
Keyword(s):  
Mitochondrial Genome ◽  
Nuclear Genes

Adaptation and adaptive radiation

2019 ◽  
pp. 199-243
Author(s):  
Geoffrey E. Hill
Keyword(s):  
Natural Selection ◽  
Mitochondrial Genome ◽  
Adaptive Evolution ◽  
Mitochondrial Function ◽  
Adaptive Radiation ◽  
Nuclear Genes ◽  
Central Component ◽  
Terrestrial Locomotion ◽  
Adaptive Radiations ◽  
Evolution By Natural Selection

A key outcome of evolution by natural selection is adaptation. Since the beginning of the age of genetics, evolutionary biologists have focused on the evolution of nuclear genes as the basis for adaptation. Changes to the mitochondrial genome were long viewed as the result of drift and unimportant to organism fitness. New theory and empirical observations, however, are implicating changes in mitochondrial function as a central component of adaptation related to temperature, oxygen pressure, and diet. Novel mitochondrial function underlying adaptive evolution is a product of interacting mitochondrial and nuclear genes to create changes to the electron transport system, and variation in mitochondrial genotypes has been found to play a key role in such adaptive evolution of eukaryotes. Evidence is emerging that changes in mitochondrial function resulting from mitonuclear coevolution underlie key evolutionary innovations associated with major adaptive radiations including the transition from terrestrial locomotion to flight. I discuss the empirical evidence that supports a key role for mitonuclear coevolution in adaptation and adaptive radiation and the implications for fundamental ideas in ecology and evolution.

The development of somatic embryos in tissue cultures initiated from immature embryos of Picea abies (Norway Spruce)

Plant Science ◽  
1985 ◽  
Vol 38 (1) ◽  
pp. 53-59 ◽  
Author(s):  
Inger Hakman ◽  
Larry C. Fowke ◽  
Sara Von Arnold ◽  
Tage Eriksson
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Somatic Embryos ◽  
Immature Embryos ◽  
Tissue Cultures
Sign in / Sign up

Export Citation Format

Share Document