Xenambulacraria: Difference between revisions
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{{short description|Animal clade containing xenoturbellids, acoelomorphs, echinoderms and hemichordates}} |
{{short description|Animal clade containing xenoturbellids, acoelomorphs, echinoderms and hemichordates}} |
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{{Automatic taxobox |
{{Automatic taxobox |
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|image = {{Multiple image |
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|image1 = Xenoturbella japonica.jpg |
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|caption1 = [[Xenoturbellida]] (''[[Xenoturbella japonica]]'') |
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|image2 = Waminoa on Plerogyra.jpg |
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|caption2 = [[Acoelomorpha]] (''[[Waminoa]]'' sp.) |
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|image3 = Thromidia catalai Heavy Starfish PNG by Nick Hobgood.jpg |
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|caption3 = [[Echinodermata]] (''[[Thromidia|Thromidia catalai]]'') |
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|image4 = Balanoglosse - 2.jpg |
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|caption4 = [[Hemichordata]] (''[[Balanoglossus]]'' sp.) |
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|border = infobox |
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|image_caption = Examples of all four branches of Xenambulacraria |
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|taxon = Xenambulacraria |
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|authority = Bourlat et al, 2006<ref name="Bourlat2006"/> |
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|subdivision_ranks = Clades |
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|subdivision = * [[Xenacoelomorpha]] <br /> |
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** [[Xenoturbellida]] |
** [[Xenoturbellida]] |
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** [[Acoelomorpha]] |
** [[Acoelomorpha]] |
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'''Xenambulacraria''' is a proposed clade of [[animal]]s with [[symmetry (biology)#Bilateral symmetry|bilateral symmetry]] as an embryo, consisting of the [[Xenacoelomorpha]] (i.e., ''[[Xenoturbella]]'' and [[acoelomorph]]s) and the [[Ambulacraria]] (i.e., [[echinoderm]]s and [[hemichordate]]s).<ref name="Bourlat2006">{{cite journal | |
'''Xenambulacraria''' is a proposed clade of [[animal]]s with [[symmetry (biology)#Bilateral symmetry|bilateral symmetry]] as an embryo, consisting of the [[Xenacoelomorpha]] (i.e., ''[[Xenoturbella]]'' and [[acoelomorph]]s) and the [[Ambulacraria]] (i.e., [[echinoderm]]s and [[hemichordate]]s).<ref name="Bourlat2006">{{cite journal |last1=Bourlat |first1=Sarah J. |last2=Juliusdottir |first2=Thorhildur |last3=Lowe |first3=Christopher J. |last4=Freeman |first4=Robert |last5=Aronowicz |first5=Jochanan |last6=Kirschner |first6=Mark |last7=Lander |first7=Eric S. |last8=Thorndyke |first8=Michael |last9=Nakano |first9=Hiroaki |last10=Kohn |first10=Andrea B. |last11=Heyland |first11=Andreas |last12=Moroz |first12=Leonid L. |last13=Copley |first13=Richard R. |last14=Telford |first14=Maximilian J. |title=Deuterostome phylogeny reveals monophyletic chordates and the new phylum Xenoturbellida |journal=Nature |volume=444 |issue=7115 |year=2006 |pages=85–88 |issn=0028-0836 |doi=10.1038/nature05241 |pmid=17051155 |bibcode=2006Natur.444...85B|s2cid=4366885 }}</ref> |
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If confirmed, the clade would either be the sister group to the [[chordate]]s (if [[deuterostome]]s are [[monophyletic]]) or the sister group to all the other bilaterians, grouped together in [[Centroneuralia]] (with deuterostomes being [[paraphyletic]]).<ref name="Bourlat2006"/><ref name="Philippe2019">{{cite journal | |
If confirmed, the clade would either be the sister group to the [[chordate]]s (if [[deuterostome]]s are [[monophyletic]]) or the sister group to all the other bilaterians, grouped together in [[Centroneuralia]] (with deuterostomes being [[paraphyletic]]).<ref name="Bourlat2006"/><ref name="Philippe2019">{{cite journal |last1=Philippe |first1=Hervé |last2=Poustka |first2=Albert J. |last3=Chiodin |first3=Marta |last4=Hoff |first4=Katharina J. |last5=Dessimoz |first5=Christophe |last6=Tomiczek |first6=Bartlomiej |last7=Schiffer |first7=Philipp H. |last8=Müller |first8=Steven |last9=Domman |first9=Daryl |last10=Horn |first10=Matthias |last11=Kuhl |first11=Heiner |last12=Timmermann |first12=Bernd |last13=Satoh |first13=Noriyuki |last14=Hikosaka-Katayama |first14=Tomoe |last15=Nakano |first15=Hiroaki |last16=Rowe |first16=Matthew L. |last17=Elphick |first17=Maurice R. |last18=Thomas-Chollier |first18=Morgane |last19=Hankeln |first19=Thomas |last20=Mertes |first20=Florian |last21=Wallberg |first21=Andreas |last22=Rast |first22=Jonathan P. |last23=Copley |first23=Richard R. |last24=Martinez |first24=Pedro |last25=Telford |first25=Maximilian J. |title=Mitigating Anticipated Effects of Systematic Errors Supports Sister-Group Relationship between Xenacoelomorpha and Ambulacraria |journal=Current Biology |volume=29 |issue=11 |year=2019 |pages=1818–1826.e6 |issn=0960-9822 |doi=10.1016/j.cub.2019.04.009 |pmid=31104936 |hdl=21.11116/0000-0004-DC4B-1|s2cid=155104811 |hdl-access=free }}</ref><ref>{{Cite journal |last=Marlétaz|first=Ferdinand |date=2019-06-17 |title=Zoology: Worming into the Origin of Bilaterians |journal=Current Biology |volume=29 |issue=12 |pages=R577–R579 |doi=10.1016/j.cub.2019.05.006 |issn=0960-9822 |pmid=31211978|doi-access=free}}</ref><ref name="telford">{{Cite journal |last1=Kapli |first1=Paschalia |last2=Natsidis |first2=Paschalis |last3=Leite |first3=Daniel J. |last4=Fursman |first4=Maximilian |last5=Jeffrie |first5=Nadia |last6=Rahman |first6=Imran A. |last7=Philippe |first7=Hervé |last8=Copley |first8=Richard R. |last9=Telford |first9=Maximilian J. |date=2021-03-19 |title=Lack of support for Deuterostomia prompts reinterpretation of the first Bilateria |journal=Science Advances |volume=7 |issue=12 |pages=eabe2741 |doi=10.1126/sciadv.abe2741 |issn=2375-2548 |pmc=7978419 |pmid=33741592|bibcode=2021SciA....7.2741K }}</ref> |
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Although the validity of the clade relies mostly on [[phylogenomics]], [[molecular genetics]] studies have proposed [[pigment cell]] clusters expressing [[polyketide synthase]] (PKS) and [[sulfotransferase]] as a [[synapomorphy]] of Xenambulacraria.<ref>{{Cite journal |last1=Robertson |first1=Helen E. |last2=Sebe-Pedros |first2=Arnau |last3=Saudemont |first3=Baptiste |last4=Loe Mie |first4=Yann |last5=Zakrzewski |first5=Ann |last6=Grau-Bové |first6=Xavier |last7=Mailhe |first7=Marie-Pierre |last8=Schiffer |first8=Philipp |last9=Telford |first9=Maximilian J. |last10=Marlow |first10=Heather |date=2022-08-18 |title=Single cell atlas of Xenoturbella bocki highlights the limited cell-type complexity of a nonvertebrate deuterostome lineage |journal=BioRxiv |language=en |doi=10.1101/2022.08.18.504214 }}</ref> |
Although the validity of the clade relies mostly on [[phylogenomics]], [[molecular genetics]] studies have proposed [[pigment cell]] clusters expressing [[polyketide synthase]] (PKS) and [[sulfotransferase]] as a [[synapomorphy]] of Xenambulacraria.<ref>{{Cite journal |last1=Robertson |first1=Helen E. |last2=Sebe-Pedros |first2=Arnau |last3=Saudemont |first3=Baptiste |last4=Loe Mie |first4=Yann |last5=Zakrzewski |first5=Ann |last6=Grau-Bové |first6=Xavier |last7=Mailhe |first7=Marie-Pierre |last8=Schiffer |first8=Philipp |last9=Telford |first9=Maximilian J. |last10=Marlow |first10=Heather |date=2022-08-18 |title=Single cell atlas of Xenoturbella bocki highlights the limited cell-type complexity of a nonvertebrate deuterostome lineage |journal=BioRxiv |language=en |doi=10.1101/2022.08.18.504214 }}</ref> |
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Revision as of 11:53, 20 May 2023
| Xenambulacraria | |
|---|---|
| Examples of all four branches of Xenambulacraria | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Subkingdom: | Eumetazoa |
| Clade: | ParaHoxozoa |
| Clade: | Bilateria |
| Clade: | Xenambulacraria Bourlat et al, 2006[1] |
| Clades | |
Xenambulacraria is a proposed clade of animals with bilateral symmetry as an embryo, consisting of the Xenacoelomorpha (i.e., Xenoturbella and acoelomorphs) and the Ambulacraria (i.e., echinoderms and hemichordates).[1]
If confirmed, the clade would either be the sister group to the chordates (if deuterostomes are monophyletic) or the sister group to all the other bilaterians, grouped together in Centroneuralia (with deuterostomes being paraphyletic).[1][2][3][4]
Although the validity of the clade relies mostly on phylogenomics, molecular genetics studies have proposed pigment cell clusters expressing polyketide synthase (PKS) and sulfotransferase as a synapomorphy of Xenambulacraria.[5]
Phylogeny
Xenambulacraria has usually been recovered as a clade inside of either of two distinct phylogenies.
Basal Xenambulacraria
The following phylogeny assumes a paraphyletic Deuterostomia, with Xenambulacraria at the base of Bilateria.[4]
.jpg){kind=small}
.jpg){kind=small}
Xenambulacraria inside Deuterostomia
The following phylogeny assumes a monophyletic Deuterostomia, with Xenambulacraria contained inside of it.
Gallery
- Diversity of Xenambulacrarians
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Various Acoelomorpha (nemertodermatids). -
Various Hemichordata (enteropneusts). -
Various Echinodermata from all extant classes.
References
- ^ a b c Bourlat, Sarah J.; Juliusdottir, Thorhildur; Lowe, Christopher J.; Freeman, Robert; Aronowicz, Jochanan; Kirschner, Mark; Lander, Eric S.; Thorndyke, Michael; Nakano, Hiroaki; Kohn, Andrea B.; Heyland, Andreas; Moroz, Leonid L.; Copley, Richard R.; Telford, Maximilian J. (2006). "Deuterostome phylogeny reveals monophyletic chordates and the new phylum Xenoturbellida". Nature. 444 (7115): 85–88. Bibcode:2006Natur.444...85B. doi:10.1038/nature05241. ISSN 0028-0836. PMID 17051155. S2CID 4366885.
- ^ Philippe, Hervé; Poustka, Albert J.; Chiodin, Marta; Hoff, Katharina J.; Dessimoz, Christophe; Tomiczek, Bartlomiej; Schiffer, Philipp H.; Müller, Steven; Domman, Daryl; Horn, Matthias; Kuhl, Heiner; Timmermann, Bernd; Satoh, Noriyuki; Hikosaka-Katayama, Tomoe; Nakano, Hiroaki; Rowe, Matthew L.; Elphick, Maurice R.; Thomas-Chollier, Morgane; Hankeln, Thomas; Mertes, Florian; Wallberg, Andreas; Rast, Jonathan P.; Copley, Richard R.; Martinez, Pedro; Telford, Maximilian J. (2019). "Mitigating Anticipated Effects of Systematic Errors Supports Sister-Group Relationship between Xenacoelomorpha and Ambulacraria". Current Biology. 29 (11): 1818–1826.e6. doi:10.1016/j.cub.2019.04.009. hdl:21.11116/0000-0004-DC4B-1. ISSN 0960-9822. PMID 31104936. S2CID 155104811.
- ^ Marlétaz, Ferdinand (2019-06-17). "Zoology: Worming into the Origin of Bilaterians". Current Biology. 29 (12): R577–R579. doi:10.1016/j.cub.2019.05.006. ISSN 0960-9822. PMID 31211978.
- ^ a b Kapli, Paschalia; Natsidis, Paschalis; Leite, Daniel J.; Fursman, Maximilian; Jeffrie, Nadia; Rahman, Imran A.; Philippe, Hervé; Copley, Richard R.; Telford, Maximilian J. (2021-03-19). "Lack of support for Deuterostomia prompts reinterpretation of the first Bilateria". Science Advances. 7 (12): eabe2741. Bibcode:2021SciA....7.2741K. doi:10.1126/sciadv.abe2741. ISSN 2375-2548. PMC 7978419. PMID 33741592.
- ^ Robertson, Helen E.; Sebe-Pedros, Arnau; Saudemont, Baptiste; Loe Mie, Yann; Zakrzewski, Ann; Grau-Bové, Xavier; Mailhe, Marie-Pierre; Schiffer, Philipp; Telford, Maximilian J.; Marlow, Heather (2022-08-18). "Single cell atlas of Xenoturbella bocki highlights the limited cell-type complexity of a nonvertebrate deuterostome lineage". BioRxiv. doi:10.1101/2022.08.18.504214.