Auteurs, date et publication :
Auteurs Sami Jaballah , Guglielmo Fernandez Garcia , François Martignac , Nicolas Parisey , Stéphane Jumel , Jean-Marc Roussel , Olivier Dézerald
Publication : Aquatic Ecology
Date : 2023
Catégorie(s)
#INRAE #PEARLRésumé
Ongoing global changes affect ecosystems and open up new opportunities for biological invasion. The ability of invasive species to rapidly adapt to new environments represents a relevant model for studying short-term adaptation mechanisms. The aquatic invasive plant, Ludwigia grandiflora subsp. hexapetala, is classified as harmful in European rivers. In French wet meadows, this species has shown a rapid transition from aquatic to terrestrial environments with emergence of two distinct morphotypes in 5 years. To understand the heritable mechanisms involved in adjustment to such a new environment, we investigate both genetic and epigenetic as possible sources of flexibility involved in this fast terrestrial transition. We found a low overall genetic differentiation between the two morphotypes arguing against the possibility that terrestrial morphotype emerged from a new adaptive genetic capacity. Artificial hypomethylation was induced on both morphotypes to assess the epigenetic hypothesis. We analyzed global DNA methylation, morphological changes, phytohormones and metabolite profiles of both morphotype responses in both aquatic and terrestrial conditions in shoot and root tissues. Hypomethylation significantly affected morphological variables, phytohormone levels and the amount of some metabolites. The effects of hypomethylation depended on morphotypes, conditions and plant tissues, which highlighted differences among the morphotypes and their plasticity. Using a correlative integrative approach, we showed that hypomethylation of the aquatic morphotype mimicked the characteristics of the terrestrial morphotype. Our data suggest that DNA methylation rather than a new adaptive genetic capacity is playing a key role in L. grandiflora subsp. hexapetala plasticity during its rapid aquatic to terrestrial transition.
Auteurs, date et publication :
Auteurs Julien Genitoni , Danièle Vassaux , Alain Delaunay , Sylvie Citerne , Luis Portillo Lemus , Marie-Pierre Etienne , David Renault , Solenn Stoeckel , Dominique Barloy , Stéphane Maury
Publication : Physiologia Plantarum
Date : 2025
Volume : 170
Issue : 2
Pages : 280-298
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs M.-A. Coutellec , T. Caquet
Publication : Journal of Evolutionary Biology
Date : 2011
Volume : 24
Issue : 10
Pages : 2248-2257
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs J. Aubin , H. Rey-Valette , G. Mathé , A. Wilfart , M. Legendre , J. Slembrouck , E. Chia , G. Masson , M. Callier , J.P. Blancheton , A. Tocqueville , D. Caruso , P. Fontaine
Date : 2025
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs Jessica Côte , Anthony Bouétard , Yannick Pronost , Anne-Laure Besnard , Maïra Coke , Fabien Piquet , Thierry Caquet , Marie-Agnès Coutellec
Publication : Environmental Pollution
Date : 2015
Volume : 205
Pages : 209-217
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs M.-A. Coutellec
Date : 2025
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs Bouetard A. , Hoede C. , Besnard A-L. , M. Collinet , Noirot C. , Lagadic L. , M.-A. Coutellec
Date : 2012
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs Stephen J. Holland , Lesley M. Berghuis , Justin J. King , Lakshminarayan M. Iyer , Katarzyna Sikora , Heather Fifield , Sarah Peter , Emma M. Quinlan , Fumiaki Sugahara , Prashant Shingate , Inês Trancoso , Norimasa Iwanami , Elena Temereva , Christine Strohmeier , Shigeru Kuratani , Byrappa Venkatesh , Guillaume Evanno , L. Aravind , Michael Schorpp , Mani Larijani
Publication : Proceedings of the National Academy of Sciences
Date : 2018
Volume : 115
Issue : 14
Pages : E3211-E3220
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs Quentin Rougemont
Date : 2015
Catégorie(s)
#INRAE #PEARLAuteurs, date et publication :
Auteurs Falkowski M , M. Coke , et al
Date : 2025