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The fate of the TARDIS offspring: no intergenerational effects of space exposure in Milnesium tardigradum
Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. (MABH)ORCID iD: 0000-0002-1732-0372
Tyskland.
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2015 (English)Conference paper, Poster (Refereed)
Abstract [en]

In September 2007 tardigrades became the first animal in the history to survive the combined effect of exposure to space vacuum, cosmic radiation, and ultra-violet radiation in low Earth orbit. The main results from this experiment were reported in 2008, but some of the results have remained unpublished. Here we report that no delayed effects of the exposure to space could be detected in the descendants (up to F3 generation) of space exposed Milnesium tardigradum. This indicates that individual tardigrades that survived the damage induced by environmental agents in space, and were able to reproduce, did not transfer any delayed damage to later generations. Repair of environmentally induced damage may therefore follow a “make or break” rule, such that a damaged animal either fails to repair all damage and dies, or repairs damage successfully and leaves no mutations to descendants. We also provide previously unreported data on two tardigrade species, Echiniscus testudo and Ramazzottius oberhaeuseri, that showed high survival after exposure to space vacuum and cosmic radiation within the TARDIS experiment.

Place, publisher, year, edition, pages
2015.
National Category
Zoology
Identifiers
URN: urn:nbn:se:hkr:diva-14845OAI: oai:DiVA.org:hkr-14845DiVA: diva2:857451
Conference
13th International Symposium on Tardigrada, Modena 23-26 June 2015
Available from: 2015-09-29 Created: 2015-09-29 Last updated: 2015-11-27Bibliographically approved

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http://www.tardigrada2015.it/

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Jönsson, K. Ingemar
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CiteExportLink to record
Permanent link

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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
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  • asciidoc
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