Phylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) a morphological and molecular analysis : new circumscription and synopsis

Phylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) a morphological and molecular analysis : new circumscription and synopsis

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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.

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Bibliographic Details
Main Authors: Lo Medico, Julia Mariela, Tosto, Daniela Sandra, Rua, Gabriel Hugo, Rúgolo, Zulma Esther, Scataglini, María Amalia, Vega, Andrea Susana
Format: Texto biblioteca
Language:eng
Subjects:CONTINUOUS CHARACTERS, DIGITARIA SACCHARIFLORA NEOTYPE, GRASSES, ITS, MEGALOPROTACHNE,
Online Access:http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=45337
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spelling KOHA-OAI-AGRO:453372024-02-06T12:20:58Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=45337http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGPhylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) a morphological and molecular analysis : new circumscription and synopsisLo Medico, Julia MarielaTosto, Daniela SandraRua, Gabriel HugoRúgolo, Zulma EstherScataglini, María AmaliaVega, Andrea Susanatextengapplication/pdfThe 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.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.CONTINUOUS CHARACTERSDIGITARIA SACCHARIFLORA NEOTYPEGRASSESITSMEGALOPROTACHNESystematic Botany
institution UBA FA
collection Koha
country Argentina
countrycode AR
component Bibliográfico
access En linea
En linea
databasecode cat-ceiba
tag biblioteca
region America del Sur
libraryname Biblioteca Central FAUBA
language eng
topic CONTINUOUS CHARACTERS
DIGITARIA SACCHARIFLORA NEOTYPE
GRASSES
ITS
MEGALOPROTACHNE
CONTINUOUS CHARACTERS
DIGITARIA SACCHARIFLORA NEOTYPE
GRASSES
ITS
MEGALOPROTACHNE
spellingShingle CONTINUOUS CHARACTERS
DIGITARIA SACCHARIFLORA NEOTYPE
GRASSES
ITS
MEGALOPROTACHNE
CONTINUOUS CHARACTERS
DIGITARIA SACCHARIFLORA NEOTYPE
GRASSES
ITS
MEGALOPROTACHNE
Lo Medico, Julia Mariela
Tosto, Daniela Sandra
Rua, Gabriel Hugo
Rúgolo, Zulma Esther
Scataglini, María Amalia
Vega, Andrea Susana
Phylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) a morphological and molecular analysis : new circumscription and synopsis
description 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.
format Texto
topic_facet CONTINUOUS CHARACTERS
DIGITARIA SACCHARIFLORA NEOTYPE
GRASSES
ITS
MEGALOPROTACHNE
author Lo Medico, Julia Mariela
Tosto, Daniela Sandra
Rua, Gabriel Hugo
Rúgolo, Zulma Esther
Scataglini, María Amalia
Vega, Andrea Susana
author_facet Lo Medico, Julia Mariela
Tosto, Daniela Sandra
Rua, Gabriel Hugo
Rúgolo, Zulma Esther
Scataglini, María Amalia
Vega, Andrea Susana
author_sort Lo Medico, Julia Mariela
title Phylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) a morphological and molecular analysis : new circumscription and synopsis
title_short Phylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) a morphological and molecular analysis : new circumscription and synopsis
title_full Phylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) a morphological and molecular analysis : new circumscription and synopsis
title_fullStr Phylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) a morphological and molecular analysis : new circumscription and synopsis
title_full_unstemmed Phylogeny of digitaria sections trichachne and trichophorae (Poaceae, Panicoideae, Paniceae) a morphological and molecular analysis : new circumscription and synopsis
title_sort phylogeny of digitaria sections trichachne and trichophorae (poaceae, panicoideae, paniceae) a morphological and molecular analysis : new circumscription and synopsis
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=45337
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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