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DatoValore
TitleThe importance of being a bdelloid: Ecological and evolutionary consequences of dormancy
AbstractThe bdelloid rotifers represent an intriguing example of organisms displaying an array of unusual ecological and evolutionary features, yet have managed to remain an extremely successful group for more than 35 million years. Some of these unusual features include: strictly parthenogenetic reproduction, degenerate tetraploidy, horizontal gene transfer, and resistance to desiccation, starvation and ionising radiation. This review emphasises these as well as other ecological and evolutionary features of bdelloids, highlighting the current knowledge regarding the patterns and processes governing these organisms. We suggest a unifying framework, with dormancy representing the bdelloids' key feature. We hypothesise that dormancy, and especially the DNA repair mechanisms activated during dormancy recovery, might be responsible for all the unusual features present in the taxon. We propose further work that needs to be performed to test this hypothesis, and recommend further research areas that will help to unravel this "evolutionary scandal''.
SourceThe Italian journal of zoology (Modena) 76 (3), pp. 240–249
KeywordsAncient asexualanhydrobiosiseverything-is-everywhere hypothesisparthenogenesisRotifera bdelloidea
JournalThe Italian journal of zoology (Modena)
EditorMucchi Editore., Modena, Italia
Year2009
TypeArticolo in rivista
DOI10.1080/11250000902773484
AuthorsRicci, C.; Fontaneto, D.
Text283692 2009 10.1080/11250000902773484 ISI Web of Science WOS 000268758100002 Ancient asexual anhydrobiosis everything is everywhere hypothesis parthenogenesis Rotifera bdelloidea The importance of being a bdelloid Ecological and evolutionary consequences of dormancy Ricci, C.; Fontaneto, D. University of Milan; Imperial College London The bdelloid rotifers represent an intriguing example of organisms displaying an array of unusual ecological and evolutionary features, yet have managed to remain an extremely successful group for more than 35 million years. Some of these unusual features include strictly parthenogenetic reproduction, degenerate tetraploidy, horizontal gene transfer, and resistance to desiccation, starvation and ionising radiation. This review emphasises these as well as other ecological and evolutionary features of bdelloids, highlighting the current knowledge regarding the patterns and processes governing these organisms. We suggest a unifying framework, with dormancy representing the bdelloids key feature. We hypothesise that dormancy, and especially the DNA repair mechanisms activated during dormancy recovery, might be responsible for all the unusual features present in the taxon. We propose further work that needs to be performed to test this hypothesis, and recommend further research areas that will help to unravel this evolutionary scandal . 76 Articolo in rivista Mucchi Editore. 1125 0003 The Italian journal of zoology Modena The Italian journal of zoology Modena Ital. j. zool. Modena The Italian journal of zoology. Modena diego.fontaneto FONTANETO DIEGO