miun.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
Chlorosis caused by two recessively interacting genes reveals a role of RNA helicase in hybrid breakdown in Arabidopsis thaliana
Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany.
Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany.
Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany.
Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany.
Show others and affiliations
2017 (English)In: The Plant Journal, ISSN 0960-7412, E-ISSN 1365-313XArticle in journal (Refereed) Epub ahead of print
Abstract [en]

Hybrids often differ in fitness from their parents. They may be superior, translating into hybrid vigour or heterosis, but they may also be markedly inferior, because of hybrid weakness or incompatibility. The underlying genetic causes for the latter can often be traced back to genes that evolve rapidly because of sexual or host-pathogen conflicts. Hybrid weakness may manifest itself only in later generations, in a phenomenon called hybrid breakdown. We have characterized a case of hybrid breakdown among two Arabidopsis thaliana accessions, Shahdara (Sha, Tajikistan) and Lövvik-5 (Lov-5, Northern Sweden). In addition to chlorosis, a fraction of the F2 plants have defects in leaf and embryo development, and reduced photosynthetic efficiency. Hybrid chlorosis is due to two major-effect loci, of which one, originating from Lov-5, appears to encode an RNA helicase (AtRH18). To examine the role of the chlorosis allele in the Lövvik area, in addition to eight accessions collected in 2009, we collected another 240 accessions from 15 collections sites, including Lövvik, from Northern Sweden in 2015. Genotyping revealed that Lövvik collection site is separated from the rest. Crosses between 109 accessions from this area and Sha revealed 85 cases of hybrid chlorosis, indicating that the chlorosis-causing allele is common in this area. These results suggest that hybrid breakdown alleles not only occur at rapidly evolving loci, but also at genes that code for conserved processes.

Place, publisher, year, edition, pages
Blackwell Publishing Ltd , 2017.
Keyword [en]
Arabidopsis thaliana, Chlorosis, Hybrid breakdown, Local adaptation, RNA helicase
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:miun:diva-30991DOI: 10.1111/tpj.13560OAI: oai:DiVA.org:miun-30991DiVA: diva2:1115091
Note

Version of record online: 30 May 2017

Available from: 2017-06-26 Created: 2017-06-26 Last updated: 2017-06-26Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Holm, Svante
By organisation
Department of Natural Sciences
In the same journal
The Plant Journal
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 1 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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