@ARTICLE{TreeBASE2Ref17692,
author = {Torsten H. Struck and Nancy Schult and Tiffany Kusen and Emily Hickman and Christoph Bleidorn and Damhnait McHugh and Kenneth M. Halanych},
title = {Annelid Phylogeny and the Status of Sipuncula and Echiura},
year = {2007},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {BMC Evolutionary Biology},
volume = {},
number = {},
pages = {},
abstract = {Background: Annelida comprises an ancient and ecologically important animal phylum with over 16,500 described species and members are the dominant macrofauna of the deep sea. Traditionally, two major groups are distinguished: Clitellata (including earthworms, leeches) and Polychaeta (mostly marine worms). Recent analyses of molecular data suggest that Annelida may include other taxa once considered separate phyla (i.e., Echiura, and Sipuncula) and that Clitellata are derived annelids, thus rendering Polychaeta paraphyletic; however, this contradicts classification schemes of annelids developed from recent analyses of morphological characters. Given that deep-level evolutionary relationships of Annelida are poorly understood, we have analyzed comprehensive datasets based on nuclear and mitochondrial genes, and have applied rigorous testing of alternative hypotheses so that we can move towards the robust reconstruction of annelid history needed to interpret animal body plan evolution. Results: Sipuncula, Echiura, Siboglinidae, and Clitellata are all nested within polychaete annelids according to phylogenetic analyses of three nuclear genes (18S rRNA, 28S rRNA, EF1a; 4552 nucleotide positions analyzed) for 81 taxa, and 11 nuclear and mitochondrial genes for 10 taxa (additional: 12S rRNA, 16S rRNA, ATP8, COX1-3, CYTB, NAD6; 11,454 nucleotide positions analyzed). This study substantially furthers previous findings by using approximately unbiased tests and non-scaled bootstrap probability tests to compare significance of differences between alternative hypotheses. For echiurans, the polychaete group Capitellidae is corroborated as the sister taxon; while the exact placement of Sipuncula within Annelida is still uncertain, our analyses hint at an affiliation with terebellimorphs. Siboglinids are in a clade with other sabellimorphs, and clitellates fall within a polychaete clade with aeolosomatids as their possible sister group. None of our analyses support the major polychaete clades reflected in the current classification scheme of annelids, and hypothesis testing significantly rejects monophyly of Scolecida, Palpata, Canalipalpata, and Aciculata. Conclusions: Using multiple genes and explicit hypothesis testing, we show that Echiura, Siboglinidae, and Clitellata are derived annelids with polychaete sister taxa, and that Sipuncula should be included within annelids. The traditional composition of Annelida greatly underestimates the morphological diversity of this group, and inclusion of Sipuncula and Echiura implies that patterns of segmentation within annelids have been evolutionarily labile. Relationships within Annelida based on our analyses of multiple genes challenge the current classification scheme, and some alternative hypotheses are provided.}
}
Matrices for Study 1794

Citation title:
"Annelid Phylogeny and the Status of Sipuncula and Echiura".

This study was previously identified under the legacy study ID S1766
(Status: Published).
Matrices
| ID |
Matrix Title |
Description |
Data type |
NTAX |
NCHAR |
Taxa |
|
|
|
|
|
M57816
|
Fig. 5 Neofusicoccum ITS TEF1 TUB2 RPB2 alignment |
|
Nucleic Acid |
208 |
1840 |
View Taxa
|
|
|
|
|
|
M57817
|
Fig. 6 Neofusicoccum parvum ITS TEF1 TUB2 RPB2 alignment |
|
Nucleic Acid |
75 |
1805 |
View Taxa
|
|
|
|
|
|
M57819
|
Fig. 8 Phaeobotryon ITS LSU TEF1 alignment |
|
Nucleic Acid |
54 |
1726 |
View Taxa
|
|
|
|
|
|
M57815
|
Fig. 4 Lasiodiplodia ITS TEF1 TUB2 RPB2 alignment |
|
Nucleic Acid |
148 |
1612 |
View Taxa
|
|
|
|
|
|
M57821
|
Fig. 10 Saccharata ITS TEF1 RPB2 alignment |
|
Nucleic Acid |
41 |
1529 |
View Taxa
|
|
|
|
|
|
M57813
|
Fig. 2. Diplodia ITS TEF1 TUB2 alignment |
|
Nucleic Acid |
180 |
1291 |
View Taxa
|
|
|
|
|
|
M57814
|
Fig. 3 Dothiorella ITS TEF1 TUB2 alignment |
|
Nucleic Acid |
123 |
1272 |
View Taxa
|
|
|
|
|
|
M57820
|
Fig. 9 Pseudofusicoccum TEF1 TUB2 ITS alignment |
|
Nucleic Acid |
30 |
1256 |
View Taxa
|
|
|
|
|
|
M57812
|
Fig. 1. Botryosphaeria ITS TEF1 TUB2 alignment |
|
Nucleic Acid |
51 |
1206 |
View Taxa
|
|
|
|
|
|
M57818
|
Fig. 7 Neoscytalidium ITS TEF1 TUB2 alignment |
|
Nucleic Acid |
66 |
1133 |
View Taxa
|
|
|
|
|
|
M57893
|
Fig. S10B Saccharata RPB2 alignment |
|
Nucleic Acid |
32 |
627 |
View Taxa
|
|
|
|
|
|
M57887
|
Fig. S8B Phaeobotryon LSU alignment |
|
Nucleic Acid |
44 |
556 |
View Taxa
|
|
|
|
|
|
M57892
|
Fig. S10A Saccharata ITS alignment |
|
Nucleic Acid |
41 |
550 |
View Taxa
|
|
|
|
|
|
M57874
|
Fig. S5B Neofusicoccum RPB2 alignment |
|
Nucleic Acid |
176 |
539 |
View Taxa
|
|
|
|
|
|
M57879
|
Fig. S6B Neofusicoccum parvum complex RPB2 alignment |
|
Nucleic Acid |
61 |
535 |
View Taxa
|
|
|
|
|
|
M57825
|
Fig. S2A Diplodia ITS alignment |
|
Nucleic Acid |
179 |
522 |
View Taxa
|
|
|
|
|
|
M57868
|
Fig. S4B Lasiodiplodia RPB2 alignment |
|
Nucleic Acid |
112 |
520 |
View Taxa
|
|
|
|
|
|
M57872
|
Fig. S5A Neofusicoccum ITS alignment |
|
Nucleic Acid |
208 |
510 |
View Taxa
|
|
|
|
|
|
M57886
|
Fig. S8A Phaeobotryon ITS alignment |
|
Nucleic Acid |
54 |
500 |
View Taxa
|
|
|
|
|
|
M57883
|
Fig. S7A Neoscytalidium ITS alignment |
|
Nucleic Acid |
66 |
499 |
View Taxa
|
|
|
|
|
|
M57889
|
Fig. S9A Pseudofusicoccum ITS alignment |
|
Nucleic Acid |
30 |
493 |
View Taxa
|
|
|
|
|
|
M57877
|
Fig. S6A Neofusicoccum parvum complex ITS alignment |
|
Nucleic Acid |
75 |
481 |
View Taxa
|
|
|
|
|
|
M57863
|
Fig. S3A Dothiorella ITS alignment |
|
Nucleic Acid |
123 |
479 |
View Taxa
|
|
|
|
|
|
M57822
|
Fig. S1A Botryosphaeria ITS alignment |
|
Nucleic Acid |
51 |
461 |
View Taxa
|
|
|
|
|
|
M57891
|
Fig. S9C Pseudofusicoccum TUB2 alignment |
|
Nucleic Acid |
23 |
427 |
View Taxa
|
|
|
|
|
|
M57865
|
Fig. S3C Dothiorella TUB2 alignment |
|
Nucleic Acid |
109 |
415 |
View Taxa
|
|
|
|
|
|
M57871
|
Fig. S4D Lasiodiplodia TUB2 alignment |
|
Nucleic Acid |
130 |
402 |
View Taxa
|
|
|
|
|
|
M57881
|
Fig. S6D Neofusicoccum parvum complex TUB2 alignment |
|
Nucleic Acid |
72 |
394 |
View Taxa
|
|
|
|
|
|
M57862
|
Fig. S2C Diplodia TUB2 alignment |
|
Nucleic Acid |
167 |
389 |
View Taxa
|
|
|
|
|
|
M57824
|
Fig. S1C Botryosphaeria TUB2 alignment |
|
Nucleic Acid |
44 |
387 |
View Taxa
|
|
|
|
|
|
M57876
|
Fig. S5D Neofusicoccum TUB2 alignment |
|
Nucleic Acid |
203 |
381 |
View Taxa
|
|
|
|
|
|
M57866
|
Fig. S4A Lasiodiplodia ITS alignment |
|
Nucleic Acid |
147 |
368 |
View Taxa
|
|
|
|
|
|
M57885
|
Fig. S7C Neoscytalidium TUB2 alignment |
|
Nucleic Acid |
65 |
358 |
View Taxa
|
|
|
|
|
|
M57888
|
Fig. S8C Phaeobotryon TEF1 alignment |
|
Nucleic Acid |
45 |
339 |
View Taxa
|
|
|
|
|
|
M57896
|
Fig. S10C Saccharata TEF1 alignment |
|
Nucleic Acid |
39 |
302 |
View Taxa
|
|
|
|
|
|
M57890
|
Fig. S9B Pseudofusicoccum TEF1 alignment |
|
Nucleic Acid |
30 |
295 |
View Taxa
|
|
|
|
|
|
M57880
|
Fig. S6C Neofusicoccum parvum complex TEF1 alignment |
|
Nucleic Acid |
71 |
281 |
View Taxa
|
|
|
|
|
|
M57826
|
Fig. S2B Diplodia TEF1 alignment |
|
Nucleic Acid |
174 |
276 |
View Taxa
|
|
|
|
|
|
M57875
|
Fig. S5C Neofusicoccum TEF1 alignment |
|
Nucleic Acid |
200 |
275 |
View Taxa
|
|
|
|
|
|
M57864
|
Fig. S3B Dothiorella TEF1 alignment |
|
Nucleic Acid |
121 |
269 |
View Taxa
|
|
|
|
|
|
M57823
|
Fig. S1B Botryosphaeria TEF1 alignment |
|
Nucleic Acid |
50 |
263 |
View Taxa
|
|
|
|
|
|
M57869
|
Fig. S4C Lasiodiplodia TEF1 alignment |
|
Nucleic Acid |
146 |
258 |
View Taxa
|
|
|
|
|
|
M57884
|
Fig. S7B Neoscytalidium TEF1 alignment |
|
Nucleic Acid |
65 |
187 |
View Taxa
|
|
|
|
|