Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Karyotypic Changes through Dysploidy Persist Longer over Evolutionary Time than Polyploid Changes
Show others and affiliations
2014 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 9, no 1, e85266- p.Article in journal (Refereed) Published
Abstract [en]

Chromosome evolution has been demonstrated to have profound effects on diversification rates and speciation in angiosperms. While polyploidy has predated some major radiations in plants, it has also been related to decreased diversification rates. There has been comparatively little attention to the evolutionary role of gains and losses of single chromosomes, which may or not entail changes in the DNA content (then called aneuploidy or dysploidy, respectively). In this study we investigate the role of chromosome number transitions and of possible associated genome size changes in angiosperm evolution. We model the tempo and mode of chromosome number evolution and its possible correlation with patterns of cladogenesis in 15 angiosperm clades. Inferred polyploid transitions are distributed more frequently towards recent times than single chromosome gains and losses. This is likely because the latter events do not entail changes in DNA content and are probably due to fission or fusion events (dysploidy), as revealed by an analysis of the relationship between genome size and chromosome number. Our results support the general pattern that recently originated polyploids fail to persist, and suggest that dysploidy may have comparatively longer-term persistence than polyploidy. Changes in chromosome number associated with dysploidy were typically observed across the phylogenies based on a chi-square analysis, consistent with these changes being neutral with respect to diversification.

Place, publisher, year, edition, pages
2014. Vol. 9, no 1, e85266- p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-218952DOI: 10.1371/journal.pone.0085266ISI: 000329866300061OAI: oai:DiVA.org:uu-218952DiVA: diva2:699284
Available from: 2014-02-27 Created: 2014-02-20 Last updated: 2017-12-05Bibliographically approved

Open Access in DiVA

fulltext(156 kB)127 downloads
File information
File name FULLTEXT01.pdfFile size 156 kBChecksum SHA-512
2694d73119dfaf14c0e5c56efe89a6a1ece9f74dbe01657a15a1a168759ae2406b6f4a3be75adc2eaa3f4f741d495aa29b0c0d5e8730b500dbec790e4baadd0b
Type fulltextMimetype application/pdf

Other links

Publisher's full text
By organisation
Systematic Biology
In the same journal
PLoS ONE
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 127 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 474 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf