Schlechtendalia Luzulifolia

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Estrella Urtubey 12/5/2011 1 Subfamily Barnadesioideae: “New questions” E. Urtubey 1 & T. F. Stuessy 2 1 Instituto de Botánica Darwinion, San Isidro, Argentina. 2 Department of Systematic and Evolutionary Botany, Faculty Center of Botany, University of Vienna, Austria INSTITUTO DE BOTÁNICA DARWINION ACADEMIA NACIONAL DE CIENCIAS EXACTAS, FÍSICAS Y NATURALES CONSEJO NACIONAL DE INVESTIGACIONES CIENTÍFICAS Y TÉCNICAS 2 Bremer (1987) 3 Molecular data -Absence of chloroplast inversions Morphological data 4 5 Phylogenetic hypotheses in Barnadesioideae Stuessy & al. (1996) Bremer (1994) Gustafsson et al. (2001) Urtubey & Stuessy (2001) Gruenstaeudl et al. (2009) 6 Relationships that are clear for eight of the nine genera • Duseniella, Doniophyton are closely related to Chuquiraga • Huarpea is closely related to Barnadesia • Arnaldoa is closely related to Fulcaldea and these close to the Barnadesia- Huarpea clade • Dasyphyllum is biphyletic But the position of Schlechtendalia is still uncertain 7 Stuessy et al. 2009 8 9 Schlechtendalia luzulifolia X=8 10 Pseudobilabiate 4+1 11 Distribution: Pampean phytogeographical province GOOGLE EARTH 12 13 Montevideo, Uruguay Kiyú, Uruguay 14 Piriápolis, Uruguay 15 Illescas, Uruguay 16 RN7, Uruguay 17 PN El Palmar, Argentina 18 In Brazil, Schlechtendalia luzulifolia is considered in danger of extinction (SEMA 2003) 19 Objetive Since Schlechtendalia is an ancient genus, in danger of extinction and lives on very disturbed areas Population conservation: with an appropiate and efficient protection strategy applying genetic diversity 20 Question about Schlechtendalia • What is the genetic diversity among and within populations? 21 First step:Categorizing areas 1. Protected areas 2. Pristine areas 3. Modified areas 22 Second step: Using ISSR 1. Variability among and within populations (AMOVA) 2. Similarity value (Index) 3. Relationships of populations (UPGMA) 23 Postulations • Interrelationships among populations • Relationships between genetic diversity and area (natural and modified) • Natural and human isolate barriers Areas to be preserved 24 Protected areas PN El Palmar Illescas Pristine areas Punta Ballena Modified areas www.mvotma.gub.uy/mapa-dinamico-de-areas-protegidas. 25 At present, we are working on six populations (one of Argentina and the rest of Uruguay) and comparing these populations we found ……………………… 26 We continue working Thanks! 27 Acknowledgements Consejo Nacional de Investigaciones Científica y Técnicas (CONICET), Argentina Organizing Committee of the South American Compositae Meeting To E. Urtubey 28 .

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