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Local adaptation occurs along altitudinal gradient despite the existence of gene flow in the alpine plant species Festuca eskia / Héloïse Gonzalo-Turpin (2009) 

Public Citation est un tiré à part de 97 - 2009 (Journal of ecology) Titre : Local adaptation occurs along altitudinal gradient despite the existence of gene flow in the alpine plant species Festuca eskia Type de document : Tiré à part de revue Auteurs : Héloïse Gonzalo-Turpin (1981-) ; Laurent Hazard Année de publication : 2009 Importance : 742-751 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Flux de gènes Mots-clés : Festuca eskia Ramond ex DC. Note de contenu : 1 Alpine plant species are particularly vulnerable to climate change. Therefore, estimating the adaptive potential of alpine species is of vital importance for determining their future viability. In alpine plants, adaptive potential depends on (i) altitudinal genetic differentiation among populations, combined with gene flow along an altitudinal gradient; (ii) phenotypic plasticity for the traits under selection and (iii) co-gradient variation between genetic and environmental influences on these traits. 2 The adaptive potential of Festuca eskia Ramond (Poaceae), a perennial alpine grass common in the Pyrenean Mountains, was examined in this study. A reciprocal transplant experiment involving 180 individuals along three altitudinal gradients (from 1500 to 2500 m) was established, and survival, functional and reproductive traits were recorded. In addition, four neutral sequence-tagged site and simple sequence repeat molecular markers were chosen to estimate gene flow among populations. 3 Genetic differentiation attributable to selection was detected in all traits between populations along the altitudinal gradient despite the existence of restricted gene flow. For traits directly related to fitness, local altitudinal adaptation was clearly evident. The patterns of local adaptation suggested that selection patterns differed along an altitudinal gradient. Selection for reproductive output was predominant at low altitudes, whereas differential survivorship was observed at higher altitudes. 4 Genetic differentiation with increasing altitude resulted in reduced plant stature and reproductive output but increased specific leaf area (SLA). This increased SLA at higher altitude is interpreted as a resource acquisition strategy. 5 Phenotypic plasticity was seen in all traits at the population level. Evidence of co-gradient variation between genetic differentiation and plastic response was found for all traits except SLA, suggesting that adaptive phenotypic plasticity operates in F. eskia. 6 Synthesis. Local adaptation occurs in F. eskia. It involves different adaptive traits according to the altitude. Such differentiation occurs at a small scale along altitudinal gradients despite the existence of gene flow and phenotypic plasticity. The coexistence of genetic differentiation, gene flow and phenotypic plasticity along altitudinal gradients provides an adaptive potential for F. eskia to successfully adapt to climate change. Lien pérenne : DOI : 10.1111/j.1365-2745.2009.01509.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=135168 Gonzalo-Turpin, Héloïse (1981-), Hazard, Laurent 2009 Local adaptation occurs along altitudinal gradient despite the existence of gene flow in the alpine plant species Festuca eskia. Journal of ecology, 97 : 742-751.

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Produire des connaissances pertinentes pour l'action en sciences de la conservation : cas de la gestion de la diversité génétique intraspécifique en restauration écologique / Héloïse Gonzalo-Turpin (2008)

Public Citation Titre : Produire des connaissances pertinentes pour l'action en sciences de la conservation : cas de la gestion de la diversité génétique intraspécifique en restauration écologique Type de document : Imprimé Auteurs : Héloïse Gonzalo-Turpin (1981-) Année de publication : 2008 Importance : 146 p. Langues : Français (fre) Catégories : [CBNPMP-Thématique] Restauration des écosystèmes [CBNPMP-Thématique] Conservation des ressources génétiques [CBNPMP-Thématique] Stratégie de conservation in situ [CBNPMP-Thématique] Adaptation au milieu [CBNPMP-Thématique] Reverdissement Mots-clés : Festuca eskia Ramond ex DC. Note de contenu : Thèse de l'Université de Toulouse , INRA & ENSAT Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=80331 Gonzalo-Turpin, Héloïse (1981-) , 2008. Produire des connaissances pertinentes pour l'action en sciences de la conservation : cas de la gestion de la diversité génétique intraspécifique en restauration écologique. , . 146 pp.

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
19456	8250 GON	Thèse et mémoire	Bureaux	Restauration écologique	Consultable

Toward a participatory method to manage genetic diversity of local plant pecies in ecological restoration projects : Ecovars 2 project in the Pyrenees as a study case / Héloïse Gonzalo-Turpin (2006)

Public Citation est un extrait de Species Introduction in restoration projects - possibilities and limitations- International worshop of the specialist group "Restoration Ecology" of the ecological Society of Germany, Austria and Switzerland (Gfö) / Kathrin Kiehl (2006) Titre : Toward a participatory method to manage genetic diversity of local plant pecies in ecological restoration projects : Ecovars 2 project in the Pyrenees as a study case Type de document : Extrait d'ouvrage Auteurs : Héloïse Gonzalo-Turpin (1981-) ; Nathalie Couix ; Laurent Hazard Année de publication : 2006 Importance : p. 19 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Revégétalisation Mots-clés : Festuca eskia Ramond ex DC. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=85147 Gonzalo-Turpin, Héloïse (1981-), Couix, Nathalie, Hazard, Laurent 2006 Toward a participatory method to manage genetic diversity of local plant pecies in ecological restoration projects : Ecovars 2 project in the Pyrenees as a study case. In: Species Introduction in restoration projects - possibilities and limitations- International worshop of the specialist group "Restoration Ecology" of the ecological Society of Germany, Austria and Switzerland (Gfö). Technische Universität München, Freising: 19.