The mitochondrial genome is large and variable in a family of plants (Cucurbitaceae)

@article{Ward1981TheMG,
  title={The mitochondrial genome is large and variable in a family of plants (Cucurbitaceae)},
  author={Bernard Lloyd Ward and Robert S Anderson and Arnold J. Bendich},
  journal={Cell},
  year={1981},
  volume={25},
  pages={793-803}
}

Insights into the evolution of mitochondrial genome size from complete sequences of Citrullus lanatus and Cucurbita pepo (Cucurbitaceae).

TLDR
The mitochondrial genomes of Citrullus lanatus and Cucurbita pepo are sequenced--the two smallest characterized cucurbit mitochondrial genomes--and their RNA editing content is determined and it is found that Cuculbita has a significantly higher synonymous substitution rate (and presumably mutation rate) than Citrulla but comparable levels of RNA editing.

Determination of the melon chloroplast and mitochondrial genome sequences reveals that the largest reported mitochondrial genome in plants contains a significant amount of DNA having a nuclear origin

TLDR
The transfer of nuclear DNA to the melon mitochondrial genome and the high proportion of repetitive DNA appear to explain the size of the largest mitochondrial genome reported so far.

Origins and Recombination of the Bacterial-Sized Multichromosomal Mitochondrial Genome of Cucumber[C][W]

TLDR
The 1685-kb mitochondrial genome of cucumber is reported, helping solve a 30-year mystery about the origins of its large size by showing that it mainly reflects the proliferation of dispersed repeats, expansions of existing introns, and the acquisition of sequences from diverse sources, including the cucumber nuclear and chloroplast genomes, viruses, and bacteria.

The linear 20 kb mitochondrial genome of Pandorina morum (Volvocaceae, Chlorophyta)

TLDR
The Pandorina mitochondrial DNA shows sufficient similarity to the 16 kb mitochondrial genome of Chlamydomonas reinhardtii to cross-hybridize, and also hybridizes with a probe containing maize mitochondrial 18S rRNA genes.

Cucumber: a model angiosperm for mitochondrial transformation?

TLDR
Cucumber possesses three unique attributes that make it a potential model system for mitochondrial transformation of a higher plant, and its mitochondria show paternal transmission, which could allow geneticists to use reverse genetics to study mitochondrial gene expression and to establish the efficacy of engineered mitochondrial genes for the genetic improvement of the mitochondrial genome.

Large size and complex structure of mitochondrial DNA in two nonflowering land plants

TLDR
Because flowering plant mtDNAs are also large and contain dispersed, gene-containing, repeats, it appears that these features arose early in the evolution of land plants, or perhaps even in their green algal ancestors.

Rolling-circle replication of mitochondrial DNA in the higher plant Chenopodium album (L.)

TLDR
Evidence is provided for a rolling-circle mode of replication in the mitochondria of higher plants by electron microscopy and a new approach based on the mapping of restriction fragments representing the identical 5' ends of the tails of sigma-like molecules.

Differential transmission of the Cucumis organellar genomes

TLDR
This study identified RFLPs in the organellar genomes of melon, squash, and watermelon to establish organellar DNA transmission and identified the presence of a polymorphic cytoplasm when it represented at least 1% of the DNA sample.
...

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