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Ancient WGD events as drivers of key innovations in angiosperms.
Curr Opin Plant Biol. 2016 04; 30:159-65.CO

Abstract

Polyploidy, or whole-genome duplication (WGD), is a ubiquitous feature of plant genomes, contributing to variation in both genome size and gene content. Although polyploidy has occurred in all major clades of land plants, it is most frequent in angiosperms. Following a WGD in the common ancestor of all extant angiosperms, a complex pattern of both ancient and recent polyploidy is evident across angiosperm phylogeny. In several cases, ancient WGDs are associated with increased rates of species diversification. For example, a WGD in the common ancestor of Asteraceae, the largest family of angiosperms with ∼25000 species, is statistically linked to a shift in species diversification; several other old WGDs are followed by increased diversification after a 'lag' of up to three nodes. WGD may thus lead to a genomic combination that generates evolutionary novelty and may serve as a catalyst for diversification. In this paper, we explore possible links between WGD, the origin of novelty, and key innovations and propose a research path forward.

Authors+Show Affiliations

University of Florida, Florida Museum of Natural History, USA; University of Florida, Genetics Institute, USA. Electronic address: psoltis@flmnh.ufl.edu.University of Florida, Florida Museum of Natural History, USA; University of Florida, Genetics Institute, USA; Department of Biology, University of Florida, Gainesville, FL, USA.

Pub Type(s)

Journal Article
Review
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

27064530

Citation

Soltis, Pamela S., and Douglas E. Soltis. "Ancient WGD Events as Drivers of Key Innovations in Angiosperms." Current Opinion in Plant Biology, vol. 30, 2016, pp. 159-65.
Soltis PS, Soltis DE. Ancient WGD events as drivers of key innovations in angiosperms. Curr Opin Plant Biol. 2016;30:159-65.
Soltis, P. S., & Soltis, D. E. (2016). Ancient WGD events as drivers of key innovations in angiosperms. Current Opinion in Plant Biology, 30, 159-65. https://doi.org/10.1016/j.pbi.2016.03.015
Soltis PS, Soltis DE. Ancient WGD Events as Drivers of Key Innovations in Angiosperms. Curr Opin Plant Biol. 2016;30:159-65. PubMed PMID: 27064530.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ancient WGD events as drivers of key innovations in angiosperms. AU - Soltis,Pamela S, AU - Soltis,Douglas E, Y1 - 2016/04/08/ PY - 2016/01/13/received PY - 2016/03/22/revised PY - 2016/03/23/accepted PY - 2016/4/12/entrez PY - 2016/4/12/pubmed PY - 2017/5/20/medline SP - 159 EP - 65 JF - Current opinion in plant biology JO - Curr. Opin. Plant Biol. VL - 30 N2 - Polyploidy, or whole-genome duplication (WGD), is a ubiquitous feature of plant genomes, contributing to variation in both genome size and gene content. Although polyploidy has occurred in all major clades of land plants, it is most frequent in angiosperms. Following a WGD in the common ancestor of all extant angiosperms, a complex pattern of both ancient and recent polyploidy is evident across angiosperm phylogeny. In several cases, ancient WGDs are associated with increased rates of species diversification. For example, a WGD in the common ancestor of Asteraceae, the largest family of angiosperms with ∼25000 species, is statistically linked to a shift in species diversification; several other old WGDs are followed by increased diversification after a 'lag' of up to three nodes. WGD may thus lead to a genomic combination that generates evolutionary novelty and may serve as a catalyst for diversification. In this paper, we explore possible links between WGD, the origin of novelty, and key innovations and propose a research path forward. SN - 1879-0356 UR - https://www.unboundmedicine.com/medline/citation/27064530/Ancient_WGD_events_as_drivers_of_key_innovations_in_angiosperms_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1369-5266(16)30042-5 DB - PRIME DP - Unbound Medicine ER -
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