AI Article Synopsis
- The study investigates the evolutionary relationships within the order Opiliones using molecular data from about 140 species across 43 families, employing both direct optimization and maximum likelihood approaches.
- While the four Opiliones suborders are well-supported, only the monophyly of Palpatores is confirmed, with traditional relationships upheld, particularly between Phalangida and Palpatores.
- The research indicates that Cyphophthalmi diversified during the Carboniferous period, while Phalangida's diversification occurred in the Early Devonian, with major lineages emerging before the Triassic and many before the Cretaceous; it also proposes several taxonomic changes within the groups studied.
Article Abstract
The internal phylogeny of the arachnid order Opiliones is investigated by including molecular data from five molecular markers for ca. 140 species totalling 43 families of Opiliones. The phylogenetic analyses consisted of a direct optimization (DO) approach using POY v. 4 and sophisticated tree search algorithms as well as a static alignment analysed under maximum likelihood. The four Opiliones suborders were well-supported clades, but subordinal relationships did not receive support in the DO analysis, with the exception of the monophyly of Palpatores (=Eupnoi + Dyspnoi). Maximum-likelihood analysis strongly supported the traditional relationship of Phalangida and Palpatores: (Cyphophthalmi ((Eupnoi + Dyspnoi) Laniatores)). Relationships within each suborder are well resolved and largely congruent between direct optimization and maximum-likelihood approaches. Age estimates for the main Opiliones lineages suggest a Carboniferous diversification of Cyphophthalmi, while its sister group, Phalangida, diversified in the Early Devonian. Diversification of all suborders predates the Triassic, and most major lineages predate the Cretaceous. The following taxonomic changes are proposed. Dyspnoi: Hesperonemastoma is transferred to Sabaconidae. Insidiatores: Sclerobunidae stat. nov. is erected as a family for Zuma acuta. © The Willi Hennig Society 2009.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1096-0031.2009.00296.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Channelling and taxation in European online gambling markets: evolution and policy implications.
Harm Reduct J
January 2025
Finnish Institute for Health and Welfare, Mannerheimintie 166, 00271, Helsinki, Finland.
Background: Taxation can be used to direct consumption and provision of harmful commodities. Prior research on gambling taxation has nevertheless been inconclusive on whether this can also apply to gambling. In gambling policy, optimal taxation rates have particularly been debated from the perspective of channelling consumption from offshore markets to regulated markets.
View Article and Find Full Text PDFCryoSCAPE: Scalable immune profiling using cryopreserved whole blood for multi-omic single cell and functional assays.
J Transl Med
January 2025
Allen Institute for Immunology, Seattle, WA, USA.
Background: The field of single cell technologies has rapidly advanced our comprehension of the human immune system, offering unprecedented insights into cellular heterogeneity and immune function. While cryopreserved peripheral blood mononuclear cell (PBMC) samples enable deep characterization of immune cells, challenges in clinical isolation and preservation limit their application in underserved communities with limited access to research facilities. We present CryoSCAPE (Cryopreservation for Scalable Cellular And Proteomic Exploration), a scalable method for immune studies of human PBMC with multi-omic single cell assays using direct cryopreservation of whole blood.
View Article and Find Full Text PDFOligometastatic Esophagogastric Cancer: Does It Exist and How Do We Treat It?
Curr Oncol Rep
January 2025
Department of Surgery, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Purpose Of The Review: This narrative review aims to provide an overview of recently completed randomized trials and expert consensus recommendations, and their implications for clinical practice and future trial design in patients with de-novo esophagogastric oligometastatic disease (OMD).
Recent Findings: The IKF-575/RENAISSANCE phase III trial showed no significant overall survival difference between systemic therapy alone and systemic therapy combined with local therapy for patients with gastric or gastroesophageal junction cancer and de-novo OMD, except for patients with retroperitoneal lymph node metastases only. The ESO-Shanghai 13 phase II trial demonstrated superiority of adding local therapy to systemic therapy for progression-free and overall survival in oligometastatic esophageal squamous cell carcinoma.
Phase II Parallel Arm Study of Sacituzumab Govitecan-Hziy in Patients With Advanced Thymoma or Thymic Carcinoma.
Clin Lung Cancer
December 2024
Georgetown University, Washington, DC. Electronic address:
Background: Thymic epithelial tumors (TETs), including thymoma and thymic carcinoma, are rare thoracic tumors of the anterior mediastinum. For those with advanced disease, platinum-based chemotherapy is used as first-line treatment. However, there is no standard regimen established for TET at progression after initial therapy, and treatment options for advanced/recurrent TETs are limited.
View Article and Find Full Text PDFEfficiency of fixed-dose combinations of statin and ezetimibe in the treatment of hypercholesterolemia.
Clin Investig Arterioscler
January 2025
Unidad de Cardiología, Hospital Universitario de Jaén, Jaén, España.
Objective: To estimate the clinical and economic benefits derived from increasing the use of fixed-dose combinations of high-intensity statins and ezetimibe in patients at high/very high cardiovascular risk, from the perspective of the Spanish National Health System (SNS).
Methods: A baseline scenario (current market shares) was compared with scenarios that increased the use of fixed-dose combinations (alternative: 30% increase; optimized: 69% increase). The potential annual increase in the number of controlled patients, cardiovascular events avoided and the associated savings in direct medical costs were estimated, including the cost of pharmacological treatment, follow-up, and managing cardiovascular events over a three-year time horizon.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!