@ARTICLE{TreeBASE2Ref24288,
author = {Timothy Andrew Hammer},
title = {A molecular framework phylogeny for Ptilotus (Amaranthaceae): Evidence for the rapid diversification of an arid Australian genus},
year = {2015},
keywords = {Amaranthaceae; Australia; ITS; matK; Ptilotus; rapid diversification},
doi = {10.12705/642.6},
url = {http://},
pmid = {},
journal = {Taxon},
volume = {},
number = {},
pages = {},
abstract = {Ptilotus (Amaranthaceae) is an Australian genus with over 100 species, most of which occur in arid Western Australia.
Ptilotus has been a taxonomically difficult genus; despite rigorous morphological studies into the genus over many years,
previous workers have found it difficult to delimit infrageneric groups due to inconsistent morphological variation. With the
goal to establish a phylogenetic framework for the genus, 100 taxa were sampled, including 87 Ptilotus spp., and the ITS nrDNA
and matK cpDNA were sequenced. The phylogeny was reconstructed using Bayesian, maximum likelihood and maximum
parsimony analyses on separate and concatenated datasets. Morphological characters were assessed and compared to clades on
the phylogeny to identify synapomorphies and aid in the construction of an infrageneric classification. A diversification rate
analysis was used to identify rate shifts in speciation across the phylogeny. Four major clades of the monophyletic Ptilotus were
resolved, three small clades together comprising 27% of sampled taxa and a large, diverse clade comprising the remaining 73%.
Four floral synapomorphies were identified as uniquely occurring within the latter, although none were common to all taxa in
the clade. The diversification rate analysis identified a probable rate shift at the base of Ptilotus, indicating that the genus may
have undergone a rapid diversification early in its evolution. This rapid diversification provides a plausible explanation for the
lack of consistent variation in morphology among the major clades.}
}
Taxa for Study 17221
Citation title:
"A molecular framework phylogeny for Ptilotus (Amaranthaceae): Evidence for the rapid diversification of an arid Australian genus".
Study name:
"A molecular framework phylogeny for Ptilotus (Amaranthaceae): Evidence for the rapid diversification of an arid Australian genus".
This study is part of submission 17221
(Status: Published).
Taxa
ID |
Taxon Label |
NCBI taxid |
uBIO namebankID |
1776333 |
Achyranthes aspera |
240005
|
2646922
|
1776386 |
Aerva artemisioides |
292350
|
5980148
|
1776342 |
Aerva javanica |
240009
|
2670545
|
1776359 |
Aerva lanata |
292353
|
2670546
|
1776394 |
Amaranthus caudatus |
3567
|
2646895
|
1776373 |
Gomphrena flaccida |
451940
|
5837377
|
1776343 |
Gomphrena kanisii |
|
|
1776382 |
Ptilotus aervoides |
|
|
1776401 |
Ptilotus albidus |
|
|
1776410 |
Ptilotus alexandri |
|
|
1776413 |
Ptilotus aphyllus |
|
8399071
|
1776360 |
Ptilotus appendiculatus |
|
|
1776406 |
Ptilotus aristatus ssp aristatus |
|
|
1776344 |
Ptilotus aristatus ssp micranthus |
|
|
1776370 |
Ptilotus arthrolasius |
|
|
1776424 |
Ptilotus astrolasius |
|
|
1776387 |
Ptilotus auriculifolius |
|
8803906
|
1776364 |
Ptilotus axillaris |
|
|
1776415 |
Ptilotus beardii |
|
|
1776361 |
Ptilotus beckerianus |
|
|
1776345 |
Ptilotus blackii |
|
|
1776384 |
Ptilotus calostachyus |
|
5872130
|
1776356 |
Ptilotus capitatus |
|
|
1776396 |
Ptilotus carinatus |
|
|
1776374 |
Ptilotus chamaecladus |
|
|
1776352 |
Ptilotus chippendalei |
|
|
1776417 |
Ptilotus chortophytus |
|
|
1776367 |
Ptilotus chrysocomus |
|
|
1776337 |
Ptilotus clementii |
|
|
1776418 |
Ptilotus clivicolus |
|
|
1776421 |
Ptilotus conicus |
|
|
1776423 |
Ptilotus corymbosus |
|
|
1776368 |
Ptilotus crispus |
|
|
1776408 |
Ptilotus crosslandii |
|
|
1776336 |
Ptilotus daphne |
|
|
1776388 |
Ptilotus decalvatus |
|
|
1776363 |
Ptilotus decipiens |
|
|
1776328 |
Ptilotus declinatus |
|
8919858
|
1776383 |
Ptilotus distans |
|
|
1776329 |
Ptilotus drummondii |
292359
|
5980155
|
1776393 |
Ptilotus eriotrichus |
|
|
1776420 |
Ptilotus esquamatus |
|
|
1776331 |
Ptilotus exiliflorus |
|
|
1776350 |
Ptilotus falcatus |
|
|
1776348 |
Ptilotus fasciculatus |
|
|
1776390 |
Ptilotus fusiformis |
400485
|
10320641
|
1776381 |
Ptilotus gardneri |
|
|
1776395 |
Ptilotus gaudichaudii ssp eremita |
|
|
1776346 |
Ptilotus gaudichaudii ssp gaudichaudii |
|
|
1776376 |
Ptilotus gaudichaudii ssp parviflorus |
|
|
1776414 |
Ptilotus giganteus |
|
|
1776402 |
Ptilotus gomphrenoides |
|
|
1776351 |
Ptilotus grandiflorus |
|
|
1776391 |
Ptilotus halophilus |
|
|
1776407 |
Ptilotus helichrysoides |
|
|
1776419 |
Ptilotus helipteroides |
|
|
1776326 |
Ptilotus holosericeus |
|
|
1776366 |
Ptilotus humilis |
|
8919872
|
1776362 |
Ptilotus incanus |
|
|
1776353 |
Ptilotus johnstonianus |
|
|
1776377 |
Ptilotus kenneallyanus |
|
|
1776378 |
Ptilotus latifolius |
400486
|
10320643
|
1776354 |
Ptilotus lazaridis |
|
|
1776405 |
Ptilotus leucocoma |
400487
|
10320645
|
1776416 |
Ptilotus maconochiei |
400488
|
3474472
|
1776327 |
Ptilotus macrocephalus |
400489
|
5872132
|
1776358 |
Ptilotus manglesii |
169214
|
5872134
|
1776372 |
Ptilotus marduguru |
|
8399059
|
1776385 |
Ptilotus mitchellii |
|
|
1776340 |
Ptilotus mollis |
|
|
1776412 |
Ptilotus murrayi |
400490
|
10320649
|
1776349 |
Ptilotus nobilis ssp nobilis |
|
|
1776403 |
Ptilotus nobilis ssp semilanatus |
|
|
1776411 |
Ptilotus obovatus |
270126
|
3474471
|
1776339 |
Ptilotus pedleyanus |
|
|
1776365 |
Ptilotus polakii ssp juxtus |
|
|
1776397 |
Ptilotus polakii ssp polakii |
|
|
1776330 |
Ptilotus polystachyus |
400493
|
5893500
|
1776375 |
Ptilotus procumbens |
|
|
1776389 |
Ptilotus propinquus |
|
|
1776380 |
Ptilotus pseudohelipteroides |
|
|
1776398 |
Ptilotus pyramidatus |
|
|
1776325 |
Ptilotus remotiflorus |
|
|
1776371 |
Ptilotus rigidus |
|
|
1776357 |
Ptilotus roei |
|
|
1776347 |
Ptilotus rotundifolius |
|
|
1776334 |
Ptilotus royceanus |
|
|
1776341 |
Ptilotus schwartzii |
400496
|
8804673
|
1776399 |
Ptilotus seminudus |
|
9389988
|
1776422 |
Ptilotus sericostachyus |
|
8919935
|
1776379 |
Ptilotus sessilifolius |
400497
|
10320655
|
1776392 |
Ptilotus spathulatus |
400498
|
5872138
|
1776338 |
Ptilotus spicatus |
400499
|
10320657
|
1776355 |
Ptilotus stipitatus |
|
8399080
|
1776409 |
Ptilotus stirlingii ssp australis |
|
|
1776369 |
Ptilotus stirlingii ssp stirlingii |
|
|
1776404 |
Ptilotus subspinescens |
|
|
1776332 |
Ptilotus symonii |
|
|
1776400 |
Ptilotus trichocephalus |
|
|
1776335 |
Ptilotus whitei |
|
|