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Has the connection between polyploidy and diversification actually been tested?
Curr Opin Plant Biol. 2016 04; 30:25-32.CO

Abstract

Many major clades of angiosperms have several whole genome duplications (polyploidization events) in their distant past, suggesting that polyploidy drives or at least permits diversification. However, data on recently diverged groups are more equivocal, finding little evidence of elevated diversification following polyploidy. The discrepancy may be attributable at least in part to methodology. Many studies use indirect methods, such as chromosome numbers, genome size, and Ks plots, to test polyploidy, although these approaches can be misleading, and often lack sufficient resolution. A direct test of diversification following polyploidy requires a sequence-based approach that traces the history of nuclear genomes rather than species. These methods identify the point of coalescence of ancestral genomes, but may be misleading about the time and thus the extent of diversification. Limitations of existing methods mean that the connection between polyploidy and diversification has not been rigorously tested and remains unknown.

Authors+Show Affiliations

Donald Danforth Plant Science Center, 975 North Warson Rd., St. Louis, MO 63132, USA. Electronic address: ekellogg@danforthcenter.org.

Pub Type(s)

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

Language

eng

PubMed ID

26855304

Citation

Kellogg, Elizabeth A.. "Has the Connection Between Polyploidy and Diversification Actually Been Tested?" Current Opinion in Plant Biology, vol. 30, 2016, pp. 25-32.
Kellogg EA. Has the connection between polyploidy and diversification actually been tested? Curr Opin Plant Biol. 2016;30:25-32.
Kellogg, E. A. (2016). Has the connection between polyploidy and diversification actually been tested? Current Opinion in Plant Biology, 30, 25-32. https://doi.org/10.1016/j.pbi.2016.01.002
Kellogg EA. Has the Connection Between Polyploidy and Diversification Actually Been Tested. Curr Opin Plant Biol. 2016;30:25-32. PubMed PMID: 26855304.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Has the connection between polyploidy and diversification actually been tested? A1 - Kellogg,Elizabeth A, Y1 - 2016/02/08/ PY - 2015/11/05/received PY - 2016/01/09/revised PY - 2016/01/17/accepted PY - 2016/2/9/entrez PY - 2016/2/9/pubmed PY - 2017/5/20/medline SP - 25 EP - 32 JF - Current opinion in plant biology JO - Curr. Opin. Plant Biol. VL - 30 N2 - Many major clades of angiosperms have several whole genome duplications (polyploidization events) in their distant past, suggesting that polyploidy drives or at least permits diversification. However, data on recently diverged groups are more equivocal, finding little evidence of elevated diversification following polyploidy. The discrepancy may be attributable at least in part to methodology. Many studies use indirect methods, such as chromosome numbers, genome size, and Ks plots, to test polyploidy, although these approaches can be misleading, and often lack sufficient resolution. A direct test of diversification following polyploidy requires a sequence-based approach that traces the history of nuclear genomes rather than species. These methods identify the point of coalescence of ancestral genomes, but may be misleading about the time and thus the extent of diversification. Limitations of existing methods mean that the connection between polyploidy and diversification has not been rigorously tested and remains unknown. SN - 1879-0356 UR - https://www.unboundmedicine.com/medline/citation/26855304/Has_the_connection_between_polyploidy_and_diversification_actually_been_tested L2 - https://linkinghub.elsevier.com/retrieve/pii/S1369-5266(16)30002-4 DB - PRIME DP - Unbound Medicine ER -
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