Reference : Phenotypic traits variation among native diploid, native tetraploid and invasive tetrapl...
Scientific journals : Article
Life sciences : Phytobiology (plant sciences, forestry, mycology...)
http://hdl.handle.net/2268/103216
Phenotypic traits variation among native diploid, native tetraploid and invasive tetraploid Senecio inaequidens DC. (Asteraceae)
English
Monty, Arnaud mailto [Université de Liège - ULg > Forêts, Nature et Paysage > Biodiversité et Paysage >]
Maurice, Sandrine [ > > ]
Mahy, Grégory mailto [Université de Liège - ULg > Forêts, Nature et Paysage > Biodiversité et Paysage >]
2010
Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE]
Presses Agronomiques de Gembloux
14
4
627-632
Yes (verified by ORBi)
International
1370-6233
Gembloux
Belgique
[en] Senecio madagascariensis Poir. ; Senecio inaequidens DC ; ploidy level ; life history ; common garden ; alien plant
[en] Senecio inaequidens DC. is a rapidly spreading plant invader in Europe. In its native range, it occurs at two co-existing diploid and tetraploid cytotypes. To date, only tetraploids are reported in Europe, even though invasive diploids were recorded in other parts of the world. We compared native diploid and both native and invasive tetraploid populations in common gardens in Europe for a suite of life history traits. Diploids were able to develop, showed high biomass production and produced more flower heads than tetraploids. In contrast, winter survival was null for diploids. It was low for native tetraploids, but reached 40% in invasive tetraploids. Results suggested that diploid cytotype tends to an annual life form when grown in Western Europe, with earlier and more abundant flowering. In contrast, the tetraploid cytotype was mainly perennial which may enhance its invasiveness.
Fonds de la Recherche Fondamentale Collective - FRFC ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
http://hdl.handle.net/2268/103216

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