Molecular phylogeny of acariform mites (Acari, Arachnida): Strong conflict between phylogenetic signal and long-branch attraction artifacts

Dabert, Mirosława; Witaliński, Wojciech; Kaźmierski, Andrzej; Olszanowski, Ziemowit; Dabert, Jacek

doi:10.1016/j.ympev.2009.12.020

Cited by 299 publications

(237 citation statements)

References 69 publications

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“…In particular, the inclusion of outgroups very distant from the ingroup can cause reconstruction artifacts by attracting fast-evolving (long-branched) ingroup species toward the root (25,(27)(28)(29)(30)(31). A typical solution is to introduce more closely related outgroups to "break up" the long branch leading to the ingroup, but long-branch attraction artifacts can be further minimized by also removing the distant outgroups.…”

Section: Addressing Biases In Phylogenetic Reconstructionmentioning

confidence: 99%

Genomic data do not support comb jellies as the sister group to all other animals

Pisani

Pett

Dohrmann

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

300

336

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Understanding how complex traits, such as epithelia, nervous systems, muscles, or guts, originated depends on a well-supported hypothesis about the phylogenetic relationships among major animal lineages. Traditionally, sponges (Porifera) have been interpreted as the sister group to the remaining animals, a hypothesis consistent with the conventional view that the last common animal ancestor was relatively simple and more complex body plans arose later in evolution. However, this premise has recently been challenged by analyses of the genomes of comb jellies (Ctenophora), which, instead, found ctenophores as the sister group to the remaining animals (the "Ctenophora-sister" hypothesis). Because ctenophores are morphologically complex predators with true epithelia, nervous systems, muscles, and guts, this scenario implies these traits were either present in the last common ancestor of all animals and were lost secondarily in sponges and placozoans (Trichoplax) or, alternatively, evolved convergently in comb jellies. Here, we analyze representative datasets from recent studies supporting Ctenophora-sister, including genome-scale alignments of concatenated protein sequences, as well as a genomic gene content dataset. We found no support for Ctenophora-sister and conclude it is an artifact resulting from inadequate methodology, especially the use of simplistic evolutionary models and inappropriate choice of species to root the metazoan tree. Our results reinforce a traditional scenario for the evolution of complexity in animals, and indicate that inferences about the evolution of Metazoa based on the Ctenophora-sister hypothesis are not supported by the currently available data.Metazoa | Ctenophora | Porifera | phylogenomics | evolution R esolving the phylogenetic relationships close to the root of the animal tree of life, which encompass the phyla Porifera (sponges), Cnidaria (jellyfish, corals, and their allies), Ctenophora (comb jellies), Placozoa (the "plate animals" of the genus Trichoplax), and Bilateria (the group containing all remaining phyla), is fundamental to understanding early animal evolution and the emergence of complex traits [reviewed by Dohrmann and Wörheide (1)]. Traditionally, sponges have been recognized as the sister group to the remaining animals (the "Porifera-sister" hypothesis). Under this scenario, true epithelia (with belt desmosomes connecting neighboring cells) and extracellular digestion are conventionally thought to have been primitively absent in sponges, having evolved in the common ancestor of Placozoa, Ctenophora, Cnidaria, and Bilateria. Within this group, gap junctions between neighboring cells, ectodermal and endodermal germ layers, sensory cells, nerve cells, and muscle cells evolved only once in the common ancestor of Ctenophora, Cnidaria, and Bilateria. Thus, Porifera-sister is consistent with the view that the last common ancestor of the animals was relatively simple and more complex body plans evolved after sponges had separated from the other animal lineages. However, a s...

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Section: Addressing Biases In Phylogenetic Reconstructionmentioning

confidence: 99%

Genomic data do not support comb jellies as the sister group to all other animals

Pisani

Pett

Dohrmann

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

300

336

View full text Add to dashboard Cite

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“…A 628 bp fragment of the mitochondrial cytochrome c oxidase subunit I (COI) gene was amplified with a 1:1 mixture of two forward primers, bcdF08 and bcdF09 , and reverse primer bcdR04 (Dabert et al 2010). A fragment coding for both internal transcribed spacers (ITS1-5.8S rDNA-ITS2) was amplified with ITS1_18S and ITS2_28S primers (Navajas et al 1998).…”

Section: Molecular Analysesmentioning

confidence: 99%

“…A fragment coding for both internal transcribed spacers (ITS1-5.8S rDNA-ITS2) was amplified with ITS1_18S and ITS2_28S primers (Navajas et al 1998). A complete sequence of 18S rRNA was amplified in two overlapping fragments using 18Sfw/rev960 and fw390/rev18S primer pairs (Dabert et al 2010), respectively. A 2381 bp fragment of 28S rRNA was amplified using the primer pair 28SF0001/28SR2850 .…”

Section: Molecular Analysesmentioning

confidence: 99%

A new species of freshwater Chaetonotidae (Gastrotricha, Chaetonotida) from Obodska Cave (Montenegro) based on morphological and molecular characters

Kolicka

Gadawski

Dabert

2017

EJT

Self Cite

514

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Gastrotricha is a cosmopolitan phylum of aquatic and semi-aquatic invertebrates that comprises about 820 described species. Current knowledge regarding freshwater gastrotrichs inhabiting caves is extremely poor and there are no extant data regarding Gastrotricha from Montenegro. We describe a new species from Obodska Cave, which is also the first record of a gastrotrich from this region. Due to its unusual habitat and morphological characteristics, this species may be important when considering the evolution and dispersion routes of Chaetonotidae Gosse, 1864 (sensu Leasi & Todaro 2008). We provide morphometric, molecular and phylogenetic data for the new species, together with photomicrographs and drawings.

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“…As relações entre a maioria das famílias de ácaros não ficou muito clara, como visto em estudos anteriores (OTTO; WILSON, 2001;PEPATO et al, 2010;DABERT et al, 2010), porém, as famílias estudadas no presente estudo corroboraram seu posicionamento taxonômico.…”

Section: Filogenias Molecularesunclassified

“…Foi observada uma forte relação entre Pseudoscorpiones (Arachnida) e Mesostigmata (Acari), tanto no presente estudo como naqueles realizados anteriormente com o gene 18S rRNA (OTTO; WILSON, 2001WILSON, , 2004DABERT et al, 2010;PEPATO et al, 2010). Nesse caso, a monofilia da subclasse Acari não é suportada.…”

Section: Filogenias Molecularesunclassified

<b>Estudos morfológicos e investigação da presença de bactérias e protozoários em ácaros (Trombidiformes), parasitos de répteis e anfíbios, no estado de São Paulo</b>

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Molecular phylogeny of acariform mites (Acari, Arachnida): Strong conflict between phylogenetic signal and long-branch attraction artifacts

Cited by 299 publications

References 69 publications

Genomic data do not support comb jellies as the sister group to all other animals

Genomic data do not support comb jellies as the sister group to all other animals

A new species of freshwater Chaetonotidae (Gastrotricha, Chaetonotida) from Obodska Cave (Montenegro) based on morphological and molecular characters

<b>Estudos morfológicos e investigação da presença de bactérias e protozoários em ácaros (Trombidiformes), parasitos de répteis e anfíbios, no estado de São Paulo</b>

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