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Genetic Identity and Herbivory Drive the Invasion of a Common Aquatic Microbial Invader

Bolius, Sarah; Morling, Karoline 1; Wiedner, Claudia; Weithoff, Guntram
1 Karlsruher Institut für Technologie (KIT)


Despite the increasing number of species invasions, the factors driving invasiveness are still under debate. This is particularly the case for “invisible” invasions by aquatic microbial species. Since in many cases only a few individuals or propagules enter a new habitat, their genetic variation is low and might limit their invasion success, known as the genetic bottleneck. Thus, a key question is, how genetic identity and diversity of invading species influences their invasion success and, subsequently, affect the resident community. We conducted invader-addition experiments using genetically different strains of the globally invasive, aquatic cyanobacterium Raphidiopsis raciborskii (formerly: Cylindrospermopsis raciborskii) to determine the role of invader identity and genetic diversity (strain richness) at four levels of herbivory. We tested the invasion success of solitary single strain invasions against the invader genetic diversity, which was experimentally increased up to ten strains (multi-strain populations). By using amplicon sequencing we determined the strain-specific invasion success in the multi-strain treatments and compared those with the success of these strains in the singlestrain treatments. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000121201
Veröffentlicht am 13.07.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Wasser und Gewässerentwicklung (IWG)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 13.07.2020
Sprache Englisch
Identifikator ISSN: 1664-302X
KITopen-ID: 1000121201
Erschienen in Frontiers in microbiology
Verlag Frontiers Media SA
Band 11
Seiten Art. Nr.: 1598
Vorab online veröffentlicht am 01.07.2020
Schlagwörter alien species, genetic diversity, genotype, invasibility, cyanobacteria, consumptive resistance, phytoplankton, Raphidiopsis
Nachgewiesen in Web of Science
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