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.

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.

The Complete Moss Mitochondrial Genome in the Angiosperm Amborella Is a Chimera Derived from Two Moss Whole-Genome Transfers

An expanded set of phylogenetic analyses with respect to both moss lineages and mitochondrial loci leads to a model involving two successive moss-to-Amborella whole-genome transfers followed by recombination that produced a single intact and chimeric moss mitochondrial genome integrated in the Amborella mitochondrial genome.

Mitochondrial genomes of two parasitic Cuscuta species lack clear evidence of horizontal gene transfer and retain unusually fragmented ccmFC genes

The lack of HGT is surprising given examples from the nuclear genomes, and may be due in part to the relatively small size of the Cuscuta mitogenomes, limiting the capacity to integrate foreign sequences.

PacBio-Based Mitochondrial Genome Assembly of Leucaena trichandra (Leguminosae) and an Intrageneric Assessment of Mitochondrial RNA Editing

An efficient long read (PacBio) iterative assembly pipeline is used to generate mt-genome assemblies for Leucaena trichandra, providing the first assessment of non-papilionoid legume mt- Genome content and structure to date and facilitating the exploration of alternative structures that are common place among plant mitochondrial genomes.

The draft mitochondrial genome of Magnolia biondii and mitochondrial phylogenomics of angiosperms

Mitochondrial phylogenomic analysis of the concatenated datasets of 38 conserved protein-coding genes from 91 representatives of angiosperm species supports the sister relationship of magnoliids with monocots and eudicots, which is congruent with plastid evidence.



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 Amborella Genome and the Evolution of Flowering Plants

Genome structure and phylogenomic analyses indicate that the ancestral Angiosperm was a polyploid with a large constellation of both novel and ancient genes that survived to play key roles in angiosperm biology.

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.