NDLI: Legume genome evolution viewed through the Medicago truncatula and Lotus japonicus genomes

Content Provider	PubMed Central
Author	Cannon, Steven B. Sterck, Lieven Stephane, Rombauts Sato, Shusei Cheung, Foo Gouzy, Jérôme Wang, Xiaohong Mudge, Joann Vasdewani, Jayprakash Thomas, Schiex Spannagl, Manuel Monaghan, Erin Nicholson, Christine Humphray, Sean J. Schoof, Heiko Mayer, Klaus F. X. Rogers, Jane Quétier, Francis Oldroyd, Giles E. Frédéric, Debellé Cook, Douglas R. Retzel, Ernest F. Roe, Bruce A. Town, Christopher D. Tabata, Satoshi Peer, Yves Van De Young, Nevin D.
Copyright Year	2006
Abstract	Genome sequencing of the model legumes, Medicago truncatula and Lotus japonicus, provides an opportunity for large-scale sequence-based comparison of two genomes in the same plant family. Here we report synteny comparisons between these species, including details about chromosome relationships, large-scale synteny blocks, microsynteny within blocks, and genome regions lacking clear correspondence. The Lotus and Medicago genomes share a minimum of 10 large-scale synteny blocks, each with substantial collinearity and frequently extending the length of whole chromosome arms. The proportion of genes syntenic and collinear within each synteny block is relatively homogeneous. Medicago–Lotus comparisons also indicate similar and largely homogeneous gene densities, although gene-containing regions in Mt occupy 20–30% more space than Lj counterparts, primarily because of larger numbers of Mt retrotransposons. Because the interpretation of genome comparisons is complicated by large-scale genome duplications, we describe synteny, synonymous substitutions and phylogenetic analyses to identify and date a probable whole-genome duplication event. There is no direct evidence for any recent large-scale genome duplication in either Medicago or Lotus but instead a duplication predating speciation. Phylogenetic comparisons place this duplication within the Rosid I clade, clearly after the split between legumes and Salicaceae (poplar).
Related Links	http://dx.doi.org/10.1073/pnas.0603228103
Ending Page	14964
Page Count	6
Starting Page	14959
File Format	PDF
ISSN	00278424
e-ISSN	10916490
Journal	Proceedings of the National Academy of Sciences of the United States of America
Issue Number	40
Volume Number	103
Language	English
Publisher	National Academy of Sciences
Publisher Date	2006-10-03
Access Restriction	Open
Rights Holder	National Academy of Sciences
Subject Keyword	General Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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Correction for Cannon et al., Legume genome evolution viewed through the Medicago truncatula and Lotus japonicus genomes

Legume genome evolution viewed through the Medicago truncatula and Lotus japonicus genomes.

Evolution and microsynteny of the apyrase gene family in three legume genomes

Legume Anchor Markers Link Syntenic Regions Between Phaseolus vulgaris, Lotus japonicus, Medicago truncatula and Arachis

Nitrogen fixation is synchronized with carbon metabolism in Lotus japonicus and Medicago truncatula nodules under salt stress

Whole-genome nucleotide diversity, recombination, and linkage disequilibrium in the model legume Medicago truncatula

The MtRGF6 Peptide Differentially Regulates Root Development and Symbiotic Nodulation of Medicago truncatula and Lotus japonicus

Sequencing the Genespaces of Medicago truncatula and Lotus japonicus 1

Genome Structure of the Legume, Lotus japonicus

Legume genome evolution viewed through the Medicago truncatula and Lotus japonicus genomes

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Correction for Cannon et al., Legume genome evolution viewed through the Medicago truncatula and Lotus japonicus genomes

Legume genome evolution viewed through the Medicago truncatula and Lotus japonicus genomes.

Evolution and microsynteny of the apyrase gene family in three legume genomes

Legume Anchor Markers Link Syntenic Regions Between Phaseolus vulgaris, Lotus japonicus, Medicago truncatula and Arachis

Nitrogen fixation is synchronized with carbon metabolism in Lotus japonicus and Medicago truncatula nodules under salt stress

Whole-genome nucleotide diversity, recombination, and linkage disequilibrium in the model legume Medicago truncatula

The MtRGF6 Peptide Differentially Regulates Root Development and Symbiotic Nodulation of Medicago truncatula and Lotus japonicus

Sequencing the Genespaces of Medicago truncatula and Lotus japonicus 1

Genome Structure of the Legume, Lotus japonicus

Legume genome evolution viewed through the Medicago truncatula and Lotus japonicus genomes