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The Evolution of a High Copy Gene Array in Arabidopsis

Journal Article · · Journal of Molecular Evolution
 [1];  [2];  [2]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Plant and Microbial Biology; OSTI
  2. Univ. of California, Berkeley, CA (United States). Dept. of Plant and Microbial Biology

Local gene duplication is a prominent mechanism of gene copy number expansion. Elucidating the mechanisms by which local duplicates arise is necessary in understanding the evolution of genomes and their host organisms. Chromosome one of Arabidopsis thaliana contains an 81-gene array subdivided into 27 triplet units (t-units), with each t-unit containing three pre-transfer RNA genes. We utilized phylogenetic tree reconstructions and comparative genomics to order the events leading to the array’s formation, and propose a model using unequal crossing-over as the primary mechanism of array formation. The model is supported by additional phylogenetic information from intergenic spacer sequences separating each t-unit, comparative analysis to an orthologous array of 12 t-units in the sister taxa Arabidopsis lyrata, and additional modeling using a stochastic simulation of orthologous array divergence. Lastly, comparative phylogenetic analysis demonstrates that the two orthologous t-unit arrays undergo concerted evolution within each taxa and are likely fluctuating in copy number under neutral evolutionary drift. These findings hold larger implications for future research concerning gene and genome evolution.

Research Organization:
Univ. of California, Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Science Foundation (NSF)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1816152
Journal Information:
Journal of Molecular Evolution, Journal Name: Journal of Molecular Evolution Journal Issue: 6 Vol. 70; ISSN 0022-2844
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

References (51)

Expression of nuclear tRNATyr genes from Arabidopsis thaliana in HeLa cell and wheat germ extracts journal May 1991
Nuclear tRNATyr genes are highly amplified at a single chromosomal site in the genome of Arabidopsis thaliana journal January 1991
Rates of Nucleotide Substitution in Angiosperm Mitochondrial DNA Sequences and Dates of Divergence Between Brassica and Other Angiosperm Lineages journal May 1999
Molecular and biological characterization of an isolate of the potyvirus passiflora virus Y naturally infecting soybean (Glycine max) in Brazil journal September 2022
A comparison of the ribosomal DNA's of Xenopus laevis and Xenopus mulleri: the evolution of tandem genes journal January 1972
A split promoter for a eucaryotic tRNA gene journal May 1981
Isolation and properties of bacteria capable of high rates of β-galactosidase synthesis journal January 1962
The dual nature of homologous recombination in plants journal March 2005
Basic local alignment search tool journal October 1990
Recent duplication, domain accretion and the dynamic mutation of the human genome journal November 2001
A Relationship between Dominance, Phenotypic Stability and Variability, and a Theory of Alternative Genetic Pathways journal December 1953
The grapevine genome sequence suggests ancestral hexaploidization in major angiosperm phyla journal August 2007
Recombination: an underappreciated factor in the evolution of plant genomes journal January 2007
Rapid duplication and loss of genes coding for the alpha chains of hemoglobin. journal April 1980
Time for acquiring a new gene by duplication. journal May 1988
Unequal crossing over then and now. journal September 1988
Meiotic Recombination Between Paralogous RBCSB Genes on Sister Chromatids of Arabidopsis thaliana journal February 2004
Molecular Evolution of Minisatellites in Hemiascomycetous Yeasts journal September 2005
tRNAscan-SE: A Program for Improved Detection of Transfer RNA Genes in Genomic Sequence journal March 1997
Analysis of Intrachromosomal Duplications in Yeast Saccharomyces cerevisiae: A Possible Model for Their Origin journal August 2000
Highly efficient concerted evolution in the ribosomal DNA repeats: Total rDNA repeat variation revealed by whole-genome shotgun sequence data journal January 2007
Human-Mouse Alignments with BLASTZ journal January 2003
Finding and Comparing Syntenic Regions among Arabidopsis and the Outgroups Papaya, Poplar, and Grape: CoGe with Rosids journal October 2008
Very Low Gene Duplication Rate in the Yeast Genome journal November 2004
The Evolutionary Fate and Consequences of Duplicate Genes journal November 2000
Bias in Plant Gene Content Following Different Sorts of Duplication: Tandem, Whole-Genome, Segmental, or by Transposition journal June 2009
Concerted and Birth-and-Death Evolution of Multigene Families journal December 2005
Tandem gene arrays in Trypanosoma brucei: Comparative phylogenomic analysis of duplicate sequence variation journal January 2007
Gene Duplication: The Genomic Trade in Spare Parts journal July 2004
Evolution by Gene Duplication book January 1970
Expression of nuclear tRNATyr genes from Arabidopsis thaliana in HeLa cell and wheat germ extracts journal May 1991
Nuclear tRNATyr genes are highly amplified at a single chromosomal site in the genome of Arabidopsis thaliana journal January 1991
Expression of variant nuclearArabidopsis tRNASer genes and pre-tRNA maturation differ in HeLa, yeast and wheat germ extracts journal May 1992
Rates of Nucleotide Substitution in Angiosperm Mitochondrial DNA Sequences and Dates of Divergence Between Brassica and Other Angiosperm Lineages journal May 1999
Isolation and properties of bacteria capable of high rates of β-galactosidase synthesis journal January 1962
Basic local alignment search tool journal October 1990
Recent duplication, domain accretion and the dynamic mutation of the human genome journal November 2001
Evolution by gene duplication: an update journal June 2003
Consequences of genome duplication journal December 2007
Unravelling angiosperm genome evolution by phylogenetic analysis of chromosomal duplication events journal March 2003
The draft genome of the transgenic tropical fruit tree papaya (Carica papaya Linnaeus) journal April 2008
Nucleotide sequence of a mutant eukaryotic gene: the yeast tyrosine-inserting ochre suppressor SUP4-o. journal December 1977
MODELTEST: testing the model of DNA substitution journal October 1998
MrBayes 3: Bayesian phylogenetic inference under mixed models journal August 2003
Preservation of Duplicate Genes by Complementary, Degenerative Mutations journal April 1999
Genome-Level Evolution of Resistance Genes in Arabidopsis thaliana journal September 2003
CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice journal January 1994
How to usefully compare homologous plant genes and chromosomes as DNA sequences: How to usefully compare plant genomes journal February 2008
Evolution of repeated DNA sequences by unequal crossover journal February 1976
Meiotic Recombination Between Paralogous RBCSB Genes on Sister Chromatids of Arabidopsis thaliana journal February 2004
Genome evolution among cruciferous plants: a lecture from the comparison of the genetic maps of three diploid species--Capsella rubella, Arabidopsis lyrata subsp. petraea, and A. thaliana journal April 2005

Cited By (6)

PTGBase: an integrated database to study tandem duplicated genes in plants journal January 2015
Whole Genome and Tandem Duplicate Retention Facilitated Glucosinolate Pathway Diversification in the Mustard Family journal October 2013
A Complex Interplay of Tandem- and Whole-Genome Duplication Drives Expansion of the L-Type Lectin Receptor Kinase Gene Family in the Brassicaceae journal January 2015
Ancient Origin and Recent Innovations of RNA Polymerase IV and V journal March 2015
A novel approach for multi-domain and multi-gene family identification provides insights into evolutionary dynamics of disease resistance genes in core eudicot plants journal November 2014
Genome evolutionary dynamics followed by diversifying selection explains the complexity of the Sesamum indicum genome journal March 2017

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