In this article we review the phylogenetic distribution of major chaetal types within the Polychaeta, discuss what has been demonstrated about chaetal function in modern worms, and examine what is known about the evolution of chaete through the fossil record. We conclude with specific cautions about how chaetae are treated in phylogenetic analyses and make suggestions about how they could be used to provide a stronger phylogenetic signal.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/icb/icj057 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
, a new genus of Dorvilleidae (Annelida) from deep waters of the Southwest Atlantic Ocean and an insight into its relationship within the family.
PeerJ
October 2024
Laboratório de Evolução de Organismos Meiofaunais, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
Dorvilleidae Chamberlin, 1919 is a family of Annelida containing some of the smallest 'polychaetes' species, being poorly studied worldwide, and with little knowledge regarding its diversity and occurrence. Samples obtained in oceanographic campaigns performed in the Southwest Atlantic Ocean (Brazilian coast) revealed a high number of specimens of dorvilleids, adding to our knowledge of the family's biodiversity. A detailed morphological analysis of these organisms has revealed a new genus, , with two new species.
View Article and Find Full Text PDFRevisiting (Annelida, Parergodrilidae) in Japan, with insights into their amphi-Pacific diversification.
R Soc Open Sci
June 2024
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
Polychaetes are typically found in marine environments with limited species adapting to semi-terrestrial habitats. The genus comprises interstitial polychaetes dwelling in sandy beach areas around or above the high-water line. Based on molecular data, previous studies suggested the presence of multiple cryptic species in some different localities in the world lumped together as .
View Article and Find Full Text PDFA new genus and species of nudibranch-mimicking Syllidae (Annelida, Polychaeta).
Sci Rep
July 2024
Department of Marine Ecology, Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Blanes, Catalunya, Spain.
Nudibranch mollusks, which are well-known for their vivid warning coloration and effective defenses, are mimicked by diverse invertebrates to deter predation through both Müllerian and Batesian strategies. Despite extensive documentation across different taxa, mimickers have not been detected among annelids, including polychaetes, until now. This study described a new genus and species of polychaete living on Dendronephthya octocorals in Vietnam and Japan.
View Article and Find Full Text PDFDiscovery and characterization of a transient chaetal gland during the development of Capitella teleta (Sedentaria: Annelida).
J Morphol
June 2024
Whitney Laboratory for Marine Bioscience, University of Florida, St. Augustine, Florida, USA.
Chaetae are among the most extensively studied structures in polychaetes, serving as a defining morphological trait for annelids. Capitella teleta stands out as one of the few established annelid models for developmental and morphological studies, thus receiving significant scholarly attention. In this study, we unveil a previously unnoticed glandular structure associated with chaetae within the larvae of C.
View Article and Find Full Text PDFAnnelids from the Cambrian (Wuliuan Stage, Miaolingian) Spence Shale Lagerstätte of northern Utah, USA.
Hist Biol
April 2023
Department of Geological Sciences, University of Missouri, Columbia, MO 65211, USA.
The Spence Shale Member of the Langston Formation in northern Utah and southern Idaho preserves generally non-biomineralized fossil assemblages referred to as the Spence Shale Lagerstätte. The biota of this Lagerstätte is dominated by panarthropods, both biomineralized and soft-bodied examples, but also preserves diverse infaunal organisms, including species of scalidophorans, echinoderms, lobopodians, stalked filter feeders, and various problematic taxa. To date, however, only a single annelid fossil, originally assigned to sp.
View Article and Find Full Text PDFWant 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!