@ARTICLE{TreeBASE2Ref17946,
author = {G. Anthony Verboom and Hans Peter Linder and Nigel P. Barker},
title = {Haustorial synergids: An important character in the systematics of Danthonioid grasses (Arundinoideae: Poaceae).},
year = {1994},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {American Journal of Botany},
volume = {81},
number = {},
pages = {1601--1610},
abstract = {The mature ovule and megagametophyte of 42 grass species (23 genera), mostly from the taxonomically troublesome subfamily Arundinoideae, was investigated. Haustorial synergids, first described from the Arundineae, are reported for a further 26 species (ten genera) of danthonioid grasses, a group for which they appear to be synapomorphic. The evolution of this character and a suite of associated integument and nucellar characters is discussed. The danthonioid clade, as defined by haustorial synergids, includes Cortaderia (often treated as nondanthonioid) but excludes a number of taxa currently contained in the Arundineae. The full extent of the group remains undetermined, however, since several of its potential members remain unstudied. The data provide some indication of phylogenetic structure within the clade. At least two of the species of Merxmuellera studied appear to occupy a basal position, while three do not, suggesting that this genus may be paraphyletic, or even polyphyletic. Also, the reduction or absence of synergid haustoria in Prionanthium, Pentaschistis, and Pentameris is considered to be secondarily derived and weakly corroborates the monophyly of this generic cluster as indicated by spikelet morphology.}
}
Citation for Study 194
Citation title:
"Haustorial synergids: An important character in the systematics of Danthonioid grasses (Arundinoideae: Poaceae).".
This study was previously identified under the legacy study ID S2x4x96c12c57c00
(Status: Published).
Citation
Verboom G., Linder H., & Barker N. 1994. Haustorial synergids: An important character in the systematics of Danthonioid grasses (Arundinoideae: Poaceae). American Journal of Botany, 81: 1601-1610.
Authors
-
Verboom G.
-
Linder H.
-
Barker N.
Abstract
The mature ovule and megagametophyte of 42 grass species (23 genera), mostly from the taxonomically troublesome subfamily Arundinoideae, was investigated. Haustorial synergids, first described from the Arundineae, are reported for a further 26 species (ten genera) of danthonioid grasses, a group for which they appear to be synapomorphic. The evolution of this character and a suite of associated integument and nucellar characters is discussed. The danthonioid clade, as defined by haustorial synergids, includes Cortaderia (often treated as nondanthonioid) but excludes a number of taxa currently contained in the Arundineae. The full extent of the group remains undetermined, however, since several of its potential members remain unstudied. The data provide some indication of phylogenetic structure within the clade. At least two of the species of Merxmuellera studied appear to occupy a basal position, while three do not, suggesting that this genus may be paraphyletic, or even polyphyletic. Also, the reduction or absence of synergid haustoria in Prionanthium, Pentaschistis, and Pentameris is considered to be secondarily derived and weakly corroborates the monophyly of this generic cluster as indicated by spikelet morphology.
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S194
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref17946,
author = {G. Anthony Verboom and Hans Peter Linder and Nigel P. Barker},
title = {Haustorial synergids: An important character in the systematics of Danthonioid grasses (Arundinoideae: Poaceae).},
year = {1994},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {American Journal of Botany},
volume = {81},
number = {},
pages = {1601--1610},
abstract = {The mature ovule and megagametophyte of 42 grass species (23 genera), mostly from the taxonomically troublesome subfamily Arundinoideae, was investigated. Haustorial synergids, first described from the Arundineae, are reported for a further 26 species (ten genera) of danthonioid grasses, a group for which they appear to be synapomorphic. The evolution of this character and a suite of associated integument and nucellar characters is discussed. The danthonioid clade, as defined by haustorial synergids, includes Cortaderia (often treated as nondanthonioid) but excludes a number of taxa currently contained in the Arundineae. The full extent of the group remains undetermined, however, since several of its potential members remain unstudied. The data provide some indication of phylogenetic structure within the clade. At least two of the species of Merxmuellera studied appear to occupy a basal position, while three do not, suggesting that this genus may be paraphyletic, or even polyphyletic. Also, the reduction or absence of synergid haustoria in Prionanthium, Pentaschistis, and Pentameris is considered to be secondarily derived and weakly corroborates the monophyly of this generic cluster as indicated by spikelet morphology.}
}
- Show RIS reference
TY - JOUR
ID - 17946
AU - Verboom,G. Anthony
AU - Linder,Hans Peter
AU - Barker,Nigel P.
T1 - Haustorial synergids: An important character in the systematics of Danthonioid grasses (Arundinoideae: Poaceae).
PY - 1994
UR -
N2 - The mature ovule and megagametophyte of 42 grass species (23 genera), mostly from the taxonomically troublesome subfamily Arundinoideae, was investigated. Haustorial synergids, first described from the Arundineae, are reported for a further 26 species (ten genera) of danthonioid grasses, a group for which they appear to be synapomorphic. The evolution of this character and a suite of associated integument and nucellar characters is discussed. The danthonioid clade, as defined by haustorial synergids, includes Cortaderia (often treated as nondanthonioid) but excludes a number of taxa currently contained in the Arundineae. The full extent of the group remains undetermined, however, since several of its potential members remain unstudied. The data provide some indication of phylogenetic structure within the clade. At least two of the species of Merxmuellera studied appear to occupy a basal position, while three do not, suggesting that this genus may be paraphyletic, or even polyphyletic. Also, the reduction or absence of synergid haustoria in Prionanthium, Pentaschistis, and Pentameris is considered to be secondarily derived and weakly corroborates the monophyly of this generic cluster as indicated by spikelet morphology.
L3 -
JF - American Journal of Botany
VL - 81
IS -
SP - 1601
EP - 1610
ER -