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Title: Ancient origin and recent innovations of RNA polymerase IV and V

Abstract

Small RNA-mediated chromatin modification is a conserved feature of eukaryotes. In flowering plants, the short interfering (si)RNAs that direct transcriptional silencing are abundant and subfunctionalization has led to specialized machinery responsible for synthesis and action of these small RNAs. In particular, plants possess polymerase (Pol) IV and Pol V, multi-subunit homologs of the canonical DNA-dependent RNA Pol II, as well as specialized members of the RNA-dependent RNA Polymerase (RDR), Dicer-like (DCL), and Argonaute (AGO) families. Together these enzymes are required for production and activity of Pol IV-dependent (p4-)siRNAs, which trigger RNA-directed DNA methylation (RdDM) at homologous sequences. p4-siRNAs accumulate highly in developing endosperm, a specialized tissue found only in flowering plants, and are rare in nonflowering plants, suggesting that the evolution of flowers might coincide with the emergence of specialized RdDM machinery. Through comprehensive identification of RdDM genes from species representing the breadth of the land plant phylogeny, we describe the ancient origin of Pol IV and Pol V, suggesting that a nearly complete and functional RdDM pathway could have existed in the earliest land plants. We also uncover innovations in these enzymes that are coincident with the emergence of seed plants and flowering plants, and recent duplications that mightmore » indicate additional subfunctionalization. Phylogenetic analysis reveals rapid evolution of Pol IV and Pol V subunits relative to their Pol II counterparts and suggests that duplicates were retained and subfunctionalized through Escape from Adaptive Conflict. Finally, evolution within the carboxy-terminal domain of the Pol V largest subunit is particularly striking, where illegitimate recombination facilitated extreme sequence divergence.« less

Authors:
 [1];  [1];  [1];  [2];  [3];  [4];  [3];  [2];  [1];  [1]
  1. Univ. of Arizona, Tucson, AZ (United States)
  2. Univ. Veracruzana, Veracruz (Mexico)
  3. Univ. of California, Riverside, CA (United States)
  4. Univ. Autonoma de Queretaro, Queretaro (Mexico)
Publication Date:
Research Org.:
Univ. of Arizona, Tucson, AZ (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1344524
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Molecular Biology and Evolution
Additional Journal Information:
Journal Volume: 32; Journal Issue: 7; Journal ID: ISSN 0737-4038
Publisher:
Oxford University Press
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; escape from adaptive conflict; gene duplication; RNA polymerase IV; RNA polymerase V; RNA silencing; small RNA-directed DNA methylation

Citation Formats

Huang, Yi, Kendall, Timmy, Forsythe, Evan S., Dorantes-Acosta, Ana, Li, Shaofang, Caballero-Perez, Juan, Chen, Xuemei, Arteaga-Vazquez, Mario, Beilstein, Mark A., and Mosher, Rebecca A. Ancient origin and recent innovations of RNA polymerase IV and V. United States: N. p., 2015. Web. doi:10.1093/molbev/msv060.
Huang, Yi, Kendall, Timmy, Forsythe, Evan S., Dorantes-Acosta, Ana, Li, Shaofang, Caballero-Perez, Juan, Chen, Xuemei, Arteaga-Vazquez, Mario, Beilstein, Mark A., & Mosher, Rebecca A. Ancient origin and recent innovations of RNA polymerase IV and V. United States. https://doi.org/10.1093/molbev/msv060
Huang, Yi, Kendall, Timmy, Forsythe, Evan S., Dorantes-Acosta, Ana, Li, Shaofang, Caballero-Perez, Juan, Chen, Xuemei, Arteaga-Vazquez, Mario, Beilstein, Mark A., and Mosher, Rebecca A. Thu . "Ancient origin and recent innovations of RNA polymerase IV and V". United States. https://doi.org/10.1093/molbev/msv060. https://www.osti.gov/servlets/purl/1344524.
@article{osti_1344524,
title = {Ancient origin and recent innovations of RNA polymerase IV and V},
author = {Huang, Yi and Kendall, Timmy and Forsythe, Evan S. and Dorantes-Acosta, Ana and Li, Shaofang and Caballero-Perez, Juan and Chen, Xuemei and Arteaga-Vazquez, Mario and Beilstein, Mark A. and Mosher, Rebecca A.},
abstractNote = {Small RNA-mediated chromatin modification is a conserved feature of eukaryotes. In flowering plants, the short interfering (si)RNAs that direct transcriptional silencing are abundant and subfunctionalization has led to specialized machinery responsible for synthesis and action of these small RNAs. In particular, plants possess polymerase (Pol) IV and Pol V, multi-subunit homologs of the canonical DNA-dependent RNA Pol II, as well as specialized members of the RNA-dependent RNA Polymerase (RDR), Dicer-like (DCL), and Argonaute (AGO) families. Together these enzymes are required for production and activity of Pol IV-dependent (p4-)siRNAs, which trigger RNA-directed DNA methylation (RdDM) at homologous sequences. p4-siRNAs accumulate highly in developing endosperm, a specialized tissue found only in flowering plants, and are rare in nonflowering plants, suggesting that the evolution of flowers might coincide with the emergence of specialized RdDM machinery. Through comprehensive identification of RdDM genes from species representing the breadth of the land plant phylogeny, we describe the ancient origin of Pol IV and Pol V, suggesting that a nearly complete and functional RdDM pathway could have existed in the earliest land plants. We also uncover innovations in these enzymes that are coincident with the emergence of seed plants and flowering plants, and recent duplications that might indicate additional subfunctionalization. Phylogenetic analysis reveals rapid evolution of Pol IV and Pol V subunits relative to their Pol II counterparts and suggests that duplicates were retained and subfunctionalized through Escape from Adaptive Conflict. Finally, evolution within the carboxy-terminal domain of the Pol V largest subunit is particularly striking, where illegitimate recombination facilitated extreme sequence divergence.},
doi = {10.1093/molbev/msv060},
journal = {Molecular Biology and Evolution},
number = 7,
volume = 32,
place = {United States},
year = {Thu Mar 12 00:00:00 EDT 2015},
month = {Thu Mar 12 00:00:00 EDT 2015}
}

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Conifers have a unique small RNA silencing signature
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AGO6 Functions in RNA-Mediated Transcriptional Gene Silencing in Shoot and Root Meristems in Arabidopsis thaliana
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Pol IV-Dependent siRNA Production is Reduced in Brassica rapa
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  • DOI: 10.1093/molbev/msz019

Catalytic properties of RNA polymerases IV and V: accuracy, nucleotide incorporation and rNTP/dNTP discrimination
journal, September 2017

  • Marasco, Michelle; Li, Weiyi; Lynch, Michael
  • Nucleic Acids Research, Vol. 45, Issue 19
  • DOI: 10.1093/nar/gkx794

The NRPD1 N-terminus contains a Pol IV-specific motif that is critical for genome surveillance in Arabidopsis
journal, August 2019

  • Ferrafiat, Laura; Pflieger, David; Singh, Jasleen
  • Nucleic Acids Research, Vol. 47, Issue 17
  • DOI: 10.1093/nar/gkz618

Metagenomic sequencing suggests a diversity of RNA interference-like responses to viruses across multicellular eukaryotes
posted_content, March 2018

  • Waldron, Fergal M.; Stone, Graham N.; Obbard, Darren J.
  • bioRxiv
  • DOI: 10.1101/166488

Evidence for a unique DNA-dependent RNA polymerase in cereal crops
posted_content, February 2018

  • Trujillo, Joshua T.; Seetharam, Arun S.; Hufford, Matthew B.
  • bioRxiv
  • DOI: 10.1101/272708

Tracing the origin and evolution history of methylation-related genes in plants
journal, July 2019


Evolution of plant genome architecture
journal, March 2016


Conservation and divergence of small RNA pathways and microRNAs in land plants
journal, August 2017


Draft genome of the living fossil Ginkgo biloba
journal, November 2016


Assessing the Gene Content of the Megagenome: Sugar Pine (Pinus lambertiana)
journal, December 2016

  • Gonzalez-Ibeas, Daniel; Martinez-Garcia, Pedro J.; Famula, Randi A.
  • G3 Genes|Genomes|Genetics, Vol. 6, Issue 12
  • DOI: 10.1534/g3.116.032805

A Primary Sequence Analysis of the ARGONAUTE Protein Family in Plants
journal, August 2016

  • Rodríguez-Leal, Daniel; Castillo-Cobián, Amanda; Rodríguez-Arévalo, Isaac
  • Frontiers in Plant Science, Vol. 7
  • DOI: 10.3389/fpls.2016.01347