Function and evolution of a minimal plastid genome from a nonphotosynthetic parasitic plant.

@article{Wolfe1992FunctionAE,
  title={Function and evolution of a minimal plastid genome from a nonphotosynthetic parasitic plant.},
  author={Kenneth H. Wolfe and Clifford W. Morden and Jeffrey D. Palmer},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1992},
  volume={89 22},
  pages={
          10648-52
        }
}
  • K. H. WolfeC. MordenJ. Palmer
  • Published 15 November 1992
  • Biology
  • Proceedings of the National Academy of Sciences of the United States of America
Complete nucleotide sequencing shows that the plastid genome of Epifagus virginiana, a nonphotosynthetic parasitic flowering plant, lacks all genes for photosynthesis and chlororespiration found in chloroplast genomes of green plants. The 70,028-base-pair genome contains only 42 genes, at least 38 of which specify components of the gene-expression apparatus of the plastid. Moreover, all chloroplast-encoded RNA polymerase genes and many tRNA and ribosomal protein genes have been lost. Since the… 

Figures and Tables from this paper

The complete plastid genome sequence of the parasitic green alga Helicosporidium sp. is highly reduced and structured

The convergence of plastid genome structure in Helicosporidium and the Apicomplexa raises the interesting possibility that there are common forces that shape plastids genomes, subsequent to the loss of photosynthesis in an organism.

Rampant Gene Loss in the Underground Orchid Rhizanthella gardneri Highlights Evolutionary Constraints on Plastid Genomes

The complete plastid genome of the underground orchid, Rhizanthella gardneri, is sequenced, showing that plastids have other essential functions besides photosynthesis.

Sequencing and Analysis of Plastid Genome in Mycoheterotrophic Orchid Neottia nidus-avis

The complete sequence of a plastid genome of nonphotosynthetic mycoheterotrophic orchid Neottia nidus-avis is determined using 454 pyrosequencing technology and was found to be reduced in both genome size and gene content; this reduction is however not as drastic as in the other nonphotosynthesis orchid, R. gardneri.

Piecing together the puzzle of parasitic plant plastome evolution

The collective loss of larger sets of functionally related genes like those for the plastid NADH–dehydrogenase complex and concomitant losses of RNA polymerase genes together with their target promoters point to “domino effects” where an initial loss might have triggered others.

From chloroplasts to “cryptic” plastids: evolution of plastid genomes in parasitic plants

The loss of genes for a plastid-encoded RNA polymerase as well as an intron maturase and the retention of the gene for the large subunit of the Calvin cycle enzyme Ribulose-1,5-bisphosphate carboxylase/oxygenase in selected species will be discussed.

Complete gene map of the plastid genome of the nonphotosynthetic euglenoid flagellate Astasia longa.

The complete sequence of the ptDNA of A. longa plastid DNA is determined and a complete gene map is established and the ribulose-1,5-bisphosphate carboxylase large subunit protein has been identified by immunoblotting.

Reduced Genomes from Parasitic Plant Plastids: Templates for Minimal Plastomes?

It is discussed whether these genes really are dispensable and to what degree minimal parasitic plant plastomes could be blueprints for artificial plastid genomes.

Synthetic biology in plastids.

This review describes recent progress with the engineering of plastid genomes with large constructs of foreign or synthetic DNA, and highlights the potential of the chloroplast as a model system in bottom-up and top-down synthetic biology approaches.

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.

Massive intracellular gene transfer during plastid genome reduction in nongreen Orobanchaceae.

The analyses indicate that the first functional gene losses occurred within 10 Myr of the transition to obligate parasitism in Orobanchaceae, and that the physical plastome reduction proceeds by small deletions that accumulate over time.
...

References

SHOWING 1-2 OF 2 REFERENCES

Cell culture and somatic cell genetics of plants

Cell culture and somatic cell genetics of plants, Cell culture and Somatic cell Genetics of plants and cell culture-somatic cell interactions in plants and animals.