Phylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) a morphological and molecular analysis : new circumscription and synopsis
The present study provides evidence for taxonomic delimitation of Digitaria sect. Trichachne based on morphological data (micro- and macromorphology) and molecular data. A phylogenetic analysis was performed using 121 morphological characters and ITS sequences of 22 species and one variety of Digita...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2017lomedicojuliam.pdf LINK AL EDITOR |
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| 245 | 1 | |a Phylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) |b a morphological and molecular analysis : new circumscription and synopsis | |
| 520 | |a The present study provides evidence for taxonomic delimitation of Digitaria sect. Trichachne based on morphological data (micro- and macromorphology) and molecular data. A phylogenetic analysis was performed using 121 morphological characters and ITS sequences of 22 species and one variety of Digitaria plus three outgroups. In all topologies (based on morphological, molecular, and combined data) Digitaria sect. Trichophorae was non-monophyletic and nested within D. sect. Trichachne. Digitaria sect. Trichophorae is thus synonymized under D. sect. Trichachne and the circumscription of D. sect. Trichachne is emended. Diagnostic morphological characters related to spikelet structure are described and documented with SEM. A key to taxa belonging to D. sect. Trichachne is provided, as well as a synopsis including synonymy, iconography, geographical distribution, and ecology. The neotype of Trichachne sacchariflora Nees is herein designated. Complete illustrations of Digitaria eggersii, D. hitchcockii, and D. patens are provided. The phylogenetic placement of the Australian species D. brownii differed among trees resulting from different data sets, thus it is provisionally not included in D. sect. Trichachne in spite of its morphological similarity. Furthermore, Megaloprotachne albescens is formally transferred to Digitaria, as Digitaria albescens. | ||
| 653 | |a CONTINUOUS CHARACTERS | ||
| 653 | |a DIGITARIA SACCHARIFLORA NEOTYPE | ||
| 653 | |a GRASSES | ||
| 653 | |a ITS | ||
| 653 | |a MEGALOPROTACHNE | ||
| 700 | 1 | |a Lo Medico, Julia Mariela |u Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Recursos Naturales y Ambiente, Cátedra de Botánica General, Av. San Martín 4453, C1417DSE, Buenos Aires, Argentina y Instituto de Botánica Darwinion, Labardén 200, Casilla de correo 22, B1642HYD, Buenos Aires, Argentina. (lomedico@agro.uba.ar) |9 66913 | |
| 700 | 1 | |9 66914 |a Tosto, Daniela Sandra |u Instituto de Biotecnología (CICyV), INTA Castelar, Buenos Aires, Argentina | |
| 700 | 1 | |9 25944 |a Rua, Gabriel Hugo |u Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Recursos Naturales y Ambiente, Cátedra de Botánica General, Av. San Martín 4453, C1417DSE, Buenos Aires, Argentina | |
| 700 | 1 | |9 66915 |a Rúgolo, Zulma Esther |u Universidad de Buenos Aires, Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Botánica Sistemática. Av. San Martín 4453, C1417DSE, Buenos Aires, Argentina | |
| 700 | 1 | |a Scataglini, María Amalia |u Universidad de Buenos Aires, Facultad de Agronomía. Departamento de Recursos Naturales y Ambiente. Cátedra de Botánica Sistemática. Av. San Martín 4453, C1417DSE, Buenos Aires, Argentina |9 66916 | |
| 700 | 1 | |9 37869 |a Vega, Andrea Susana |u Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Recursos Naturales y Ambiente, Cátedra de Botánica General, Av. San Martín 4453, C1417DSE, Buenos Aires, Argentina | |
| 773 | 0 | |t Systematic Botany |g vol.42, no.1 (2017), p. 37–53, il, tbls., grafs., fot. | |
| 856 | |f 2017lomedicojuliam |i En Reservorio: |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2017lomedicojuliam.pdf |x ARTI201803 | ||
| 856 | |u http://www.sysbot.org/ |z LINK AL EDITOR | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||