Congruence between ultraconserved element-based matrices and phylotranscriptomic datasets in the scorpion Tree of Life.

Autor: Santibáñez-López CE; Department of Biology, Western Connecticut State University, Danbury, CT, 06810, USA., Ojanguren-Affilastro AA; División Aracnología, Museo Argentino de Ciencias Naturales, Buenos Aires, C1405DJR, Argentina., Graham MR; Department of Biology, Eastern Connecticut State University, Willimantic, CT, 06226, USA., Sharma PP; Department of Integrative Biology, University of Wisconsin-Madison, Madison, WI, 53706, USA.
Jazyk: angličtina
Zdroj: Cladistics : the international journal of the Willi Hennig Society [Cladistics] 2023 Dec; Vol. 39 (6), pp. 533-547. Date of Electronic Publication: 2023 Jul 04.
DOI: 10.1111/cla.12551
Abstrakt: Scorpions are ancient and historically renowned for their potent venom. Traditionally, the systematics of this group of arthropods was supported by morphological characters, until recent phylogenomic analyses (using RNAseq data) revealed most of the higher-level taxa to be non-monophyletic. While these phylogenomic hypotheses are stable for almost all lineages, some nodes have been hard to resolve due to minimal taxonomic sampling (e.g. family Chactidae). In the same line, it has been shown that some nodes in the Arachnid Tree of Life show disagreement between hypotheses generated using transcritptomes and other genomic sources such as the ultraconserved elements (UCEs). Here, we compared the phylogenetic signal of transcriptomes vs. UCEs by retrieving UCEs from new and previously published scorpion transcriptomes and genomes, and reconstructed phylogenies using both datasets independently. We reexamined the monophyly and phylogenetic placement of Chactidae, sampling an additional chactid species using both datasets. Our results showed that both sets of genome-scale datasets recovered highly similar topologies, with Chactidae rendered paraphyletic owing to the placement of Nullibrotheas allenii. As a first step toward redressing the systematics of Chactidae, we establish the family Anuroctonidae (new family) to accommodate the genus Anuroctonus.
(© 2023 Willi Hennig Society.)
Databáze: MEDLINE
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