caa a22 4500 475806603 CHVBK 20180406123748.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1007/BF00986346 doi (NATIONALLICENCE)springer-10.1007/BF00986346 Analysis of hybridization between Grindelia brachystephana and G. chiloensis (Asteraceae: Astereae) in Patagonia, Argentina [Elektronische Daten] [R. Tortosa, A. Bartoli, N. Gil-ad, N. Bartoloni] Intermediates between two South American species ofGrindelia were found in Chubut Province, Argentina. Twenty eight individual plants with phenotypes ofG. brachystephana, G. chiloensis, or intermediates were collected and studied together with three reference specimens of each of the putative parental species. Discriminant analysis procedure and the computer program HYWIN were applied and results of the two methods are compared. Results demonstrate that most of the specimens collected are of hybrid origin, and that most of the specimens suggested as hybrids are most likely introgressants. Hybridization and introgression are likely the major causes of the high variability previously attributed toG. chiloensis by taxonomists. Springer-Verlag, 2000 Hybridization nationallicence introgression nationallicence Compositae nationallicence Grindelia chiloensis nationallicence Grindelia brachystephana nationallicence HYWIN nationallicence Patagonia nationallicence Tortosa R. Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, 1417, Buenos Aires, Argentina aut Bartoli A. Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, 1417, Buenos Aires, Argentina aut Gil-ad N. The Hebrew University Herbarium, Giv-at Ram Campus, 91904, Jerusalem, Israel aut Bartoloni N. Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, 1417, Buenos Aires, Argentina aut Plant Systematics and Evolution Springer-Verlag 224/3-4(2000-09-01), 243-253 0378-2697 224:3-4<243 2000 224 606 https://doi.org/10.1007/BF00986346 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00986346 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tortosa R. Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, 1417, Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Bartoli A. Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, 1417, Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Gil-ad N. The Hebrew University Herbarium, Giv-at Ram Campus, 91904, Jerusalem, Israel aut NATIONALLICENCE 700 1- Bartoloni N. Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, 1417, Buenos Aires, Argentina aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 224/3-4(2000-09-01), 243-253 0378-2697 224:3-4<243 2000 224 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer