Horizontal Transfer of Entire Genomes via Mitochondrial Fusion in the Angiosperm Amborella

  title={Horizontal Transfer of Entire Genomes via Mitochondrial Fusion in the Angiosperm Amborella},
  author={Danny W. Rice and Andrew J. Alverson and Aaron O. Richardson and Gregory J. Young and M. Virginia Sanchez-Puerta and J{\'e}r{\^o}me Munzinger and Kerrie W. Barry and Jeffrey L. Boore and Yan Zhang and Claude W. dePamphilis and Eric B. Knox and Jeffrey D. Palmer},
  pages={1468 - 1473}
Shaping Plant Evolution Amborella trichopoda is understood to be the most basal extant flowering plant and its genome is anticipated to provide insights into the evolution of plant life on Earth (see the Perspective by Adams). To validate and assemble the sequence, Chamala et al. (p. 1516) combined fluorescent in situ hybridization (FISH), genomic mapping, and next-generation sequencing. The Amborella Genome Project (p. 10.1126/science.1241089) was able to infer that a whole-genome duplication… 

Genomic Clues to the Ancestral Flowering Plant

The genome sequence of Amborella trichopoda provides insights into the molecular evolution of flowering plants and a new assembly and validation approach for the Amboreella nuclear genome that can be applied to other nonmodel eukaroytes.

Unparalleled replacement of native mitochondrial genes by foreign homologs in a holoparasitic plant.

The sequencing of the complete mtDNA of L. mirabile revealed the unprecedented acquisition of host-derived mitochondrial genes, representing 80% of the protein-coding gene content, and represents a stunning example of the potential effect of rampant HGT on plant mitochondria.

Complete sequences of organelle genomes from the medicinal plant Rhazya stricta (Apocynaceae) and contrasting patterns of mitochondrial genome evolution across asterids

Organelle genomes of Rhazya stricta provide valuable information for improving the understanding of mitochondrial genome evolution among angiosperms and Comparative analyses of mitochondrial genomes of eight sequenced asterids indicates a complicated evolutionary history in this large angiosperm clade.

The massive mitochondrial genome of the angiosperm Silene noctiflora is evolving by gain or loss of entire chromosomes

Intraspecific variation in the mitochondrial genome of S. noctiflora is analyzed to determine the extent to which such genomes are stably maintained, and why mitochondria, more so than plastids and bacterial endosymbionts, are prone to the repeated evolution of multichromosomal genomes.

Ancient mitochondrial gene transfer between fungi and the orchids.

This work presents multiple lines of evidence documenting horizontal gene transfer (HGT) between the mitogenomes of fungi and the ancestors of the orchids, and demonstrates that the length intergenic spacer regions of angiosperm mitogenome can effectively fossilize the genomic remains of ancient, non-plant organisms.

Genomic architectural variation of plant mitochondria—A review of multichromosomal structuring

Some of the known novel characteristics found in plant mitochondrial genomes are summarized, with special emphasis on multichromosomal structures described in recent publications.

350 my of mitochondrial genome stasis in mosses, an early land plant lineage.

This work assembled the complete mt genomes from 12 mosses spanning the moss tree of life to assess the phylogenetic depth of the conserved mt gene content and order and the correlation between scattered sequence repeats and gene order lability in land plants.

Reconstructing the complex evolutionary history of mobile plasmids in red algal genomes

The results elucidate the evolution of plasmid DNAs in red algae and suggest that they spread as parasitic genetic elements, consistent with their sporadic distribution within Rhodophyta.

Mitochondrial Phylogenomics of Fagales Provides Insights Into Plant Mitogenome Mosaic Evolution

Overall, the last genetic materials of Fagales are deciphered, and large-scale analyses provide new insights into plant mitogenome evolution and size variation.

Evolutionary model of plastidial RNA editing in angiosperms presumed from genome-wide analysis of Amborella trichopoda.

The results support the idea that the evolution of angiosperms has led to the loss of RNA editing sites in plastids and mapped the loss and gain of editing sites on the phylogenetic tree of angosperms.



Massive Mitochondrial Gene Transfer in a Parasitic Flowering Plant Clade

This study is the first to comprehensively assess the magnitude of HGT in plants involving a genome and a species interaction where it has been hypothesized to be potentially rampant, and indicates that HGT involving mitochondrial genes is substantially higher than previously thought.

Massive horizontal transfer of mitochondrial genes from diverse land plant donors to the basal angiosperm Amborella.

Results indicate that Amborella has acquired one or more copies of 20 of its 31 known mitochondrial protein genes from other land plants, for a total of 26 foreign genes, whereas no evidence for HGT was found in the five sequenced genomes.

A physical map for the Amborella trichopoda genome sheds light on the evolution of angiosperm genome structure

BAC end sequences representing just 5.4% of the Amborella genome have facilitated reconstruction of gene blocks that existed in the last common ancestor of all flowering plants, an invaluable reference for inferences concerning the ancestral angiosperm and subsequent genome evolution.

The Complete Mitochondrial Genome of Gossypium hirsutum and Evolutionary Analysis of Higher Plant Mitochondrial Genomes

The existence of syntenic gene clusters, as well as the conservation of some intergenic sequences and genic content among the plant mt genomes suggest that evolution of mt genomes is consistent with plant taxonomy but independent among different species.

The Complete Chloroplast and Mitochondrial Genome Sequences of Boea hygrometrica: Insights into the Evolution of Plant Organellar Genomes

The cp-derived sequences including tRNAs found in angiosperm mt genomes support the conclusion that frequent gene transfer events may have begun early in the land plant lineage.

The Mitochondrial Genomes of the Early Land Plants Treubia lacunosa and Anomodon rugelii: Dynamic and Conservative Evolution

The mitochondrial genome experienced dynamic evolution in genome size, gene content, intron acquisition, gene order, and RNA editing during the origins of land plants and their major clades, leading to the conclusion that this organellar genome has remained rather conservative since the origin and initial radiation of early land plants.

The “fossilized” mitochondrial genome of Liriodendron tulipifera: ancestral gene content and order, ancestral editing sites, and extraordinarily low mutation rate

The mitochondrial genome of Liriodendron tulipifera is sequenced, the first from outside the monocots or eudicots, with an extraordinarily low genome-wide silent substitution rate, retention of genes frequently lost in other angiosperm lineages, and conservation of ancestral gene clusters.

Widespread horizontal transfer of mitochondrial genes in flowering plants

It is shown that standard mitochondrial genes, encoding ribosomal and respiratory proteins, are subject to evolutionarily frequent horizontal transfer between distantly related flowering plants, implying the existence of mechanisms for the delivery of DNA between unrelated plants and indicating that horizontal transfer is also a force in plant nuclear genomes.

Plant Mitochondrial Genome Diversity: The Genomics Revolution

The range of diversity among plant mitochondrial genomes is described, how the genomics revolution has advanced the authors' understanding of this diversity is discussed, and the importance of future studies to resolve remaining uncertainties is stressed.

Horizontal gene transfer from flowering plants to Gnetum

  • H. WonS. Renner
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 2003
Molecular clock dating, using calibrations provided by gnetalean macrofossils, suggests an age of 5 to 2 million years for the Asian clade that received the horizontal transfer of nad1 intron 2 and adjacent exons b and c from an asterid to Gnetum.