Miscanthus x giganteus crop fields hide a genotype of the invasive M. sacchariflorus

Autor:	Anne Rozan, Isabelle Combroux, Laurent Hardion, Cybill Staentzel, Antoine Perrier
Přispěvatelé:	Laboratoire Image, Ville, Environnement (LIVE), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Gestion Territoriale de l'Eau et de l'environnement (UMR GESTE), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES), Department of Environmental Sciences, University of Basel (Unibas), Agence de l'Eau Rhin-Meuse
Rok vydání:	2019
Předmět:	0106 biological sciences AFLP invasive weeds ITS barcoding [SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy Miscanthus Plant Science Biology 010603 evolutionary biology 01 natural sciences 7. Clean energy microsatellites Crop 03 medical and health sciences Genotype bioenergy crops Invasive Weeds Ecology Evolution Behavior and Systematics 030304 developmental biology 0303 health sciences 15. Life on land biology.organism_classification Miscanthus x giganteus Agronomy Amplified fragment length polymorphism Agronomy and Crop Science
Zdroj:	Weed Research Weed Research, Wiley, 2019, 59 (6), pp.446-457. ⟨10.1111/wre.12382⟩
ISSN:	1365-3180 0043-1737
Popis:	Despite their putative invasive potential, Miscanthus taxa have been increasingly viewed as promising crops for bioenergy production. Miscanthus x giganteus is cultivated worldwide due to its high productivity, and its non-spreading growth limits its risk of invasion. However, the genetic uniformity of its unique cultivated clone has recently been questioned. We used morphometry, nuclear microsatellites, AFLP fingerprints and nrDNA ITS barcoding to assess Miscanthus genotypes cultivated in eastern France. As expected, the globally cultivated clone was the main morphotype and genotype of our samplings; however, we also identified a second genotype, assigned to M. sacchariflorus, in the sampled fields. Morphological differentiation partially overlaps genotypic assignation, probably due to disturbance at the crop edges. We also show that Miscanthus taxa are misidentified in commercial nurseries. Our study confirms previous reports of the occurrence of other accessions in fields of M. x giganteus. These taxonomic confusions limit the certainty that a single clone of M. x giganteus is cultivated. In this context, M. x giganteus crop fields may actually promote the dispersal of invasive Miscanthus taxa.
Databáze:	OpenAIRE
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