4.1 Article

Sipunculus nudus Linnaeus, 1766 (Sipuncula): cosmopolitan or a group of pseudo-cryptic species? An integrated molecular and morphological approach

期刊

MARINE ECOLOGY-AN EVOLUTIONARY PERSPECTIVE
卷 35, 期 4, 页码 478-491

出版社

WILEY-BLACKWELL
DOI: 10.1111/maec.12104

关键词

Cryptic species; marine cosmopolitanism; morphology; Sipunculidae

资金

  1. AToL [DEB-0732903, EF-0531757]
  2. MarCraig Memorial Fund Grant

向作者/读者索取更多资源

Sipunculan taxonomy relies on a limited set of external morphological and internal anatomical characters. In addition, this marine group is characterized by an unusual large number of putatively cosmopolitan species. However, this 'cosmopolitan' status could be an artifact of their conserved morphology and the small number of unambiguous taxonomic characters available for delimiting species. Species delimitation can therefore be aided by molecular techniques. We investigated the case of the widespread and common species Sipunculus nudus Linnaeus, 1766 to determine its systematic validity. We analysed the morphology of multiple specimens of S. nudus collected from 11 localities around the world and undertook phylogenetic analyses using molecular sequence data from four genes (28S rRNA, 16S rRNA, histone H3 and cytochrome c oxidase subunit I). High levels of genetic differentiation are present between distantly related populations of the putative species S. nudus. Five distinct lineages were identified by phylogenetic analyses, three of which - the best-represented populations - can be distinguished morphologically. Our phylogenetic and morphological analyses thus do not favor the cosmopolitan status of S. nudus, suggesting instead that it constitutes a complex of morphologically similar but distinguishable species.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.1
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Biochemistry & Molecular Biology

Phylogenomic Analysis of Velvet Worms (Onychophora) Uncovers an Evolutionary Radiation in the Neotropics

Caitlin M. Baker, Rebecca S. Buckman-Young, Cristiano S. Costa, Gonzalo Giribet

Summary: RNA sequencing and phylogenomic analysis were used to reconstruct the evolutionary relationships within the phylum Onychophora, revealing a well-supported phylogeny for the family Peripatopsidae with signals of Gondwanan vicariance. However, the family Peripatidae in the Neotropical region showed unstable relationships largely due to amino acid-translated sequence data. Discordant phylogenetic signal between genes may indicate a rapid, mid-Cretaceous radiation in the group.

MOLECULAR BIOLOGY AND EVOLUTION (2021)

Article Evolutionary Biology

Mimopidae is the sister group to all other scolopendromorph centipedes (Chilopoda, Scolopendromorpha): a phylotranscriptomic approach

Ligia R. Benavides, Chao Jiang, Gonzalo Giribet

Summary: Mimopidae, previously known only by its holotype, was rediscovered in Qinling Mountain, China. By generating novel transcriptomic data and using various analytical methods, this study confirmed the phylogenetic position of Mimopidae within scolopendromorph centipedes and provided stability to the scolopendromorph phylogeny, shedding light on the evolution of centipedes.

ORGANISMS DIVERSITY & EVOLUTION (2021)

Article Evolutionary Biology

Investigating Sources of Conflict in Deep Phylogenomics of Vetigastropod Snails

Tauana Junqueira Cunha, James Davis Reimer, Gonzalo Giribet

Summary: Phylogenetic analyses of the mollusc clade Vetigastropoda may face conflicts due to the evolutionary history of deep sea snails. New research utilizing transcriptomes provides a genomic-scale phylogeny for the group, revealing differences in deep divergences and the likelihood of long branch attraction.

SYSTEMATIC BIOLOGY (2022)

Article Marine & Freshwater Biology

Evidence for spatial niche partitioning in the ectocommensal Symbion americanus (Cycliophora) on its lobster host, Homarus americanus (Arthropoda, Malacostraca)

Shoyo Sato, Allison Law, Gonzalo Giribet

Summary: This study examined the population structure and microhabitat of Symbion americanus individuals from five North American localities. The results revealed three distinct lineages of S. americanus and suggested that different genetic lineages may segregate onto different host mouthparts.

INVERTEBRATE BIOLOGY (2022)

Article Biodiversity Conservation

Guiding marine protected area network design with comparative phylogeography and population genomics: An exemplary case from the Southern Ocean

Carlos Leiva, Ana Riesgo, David Combosch, Maria Belen Arias, Gonzalo Giribet, Rachel Downey, Nathan James Kenny, Sergi Taboada

Summary: This study demonstrates the importance of using a multispecies and multilocus approach in the design of marine protected areas (MPAs), specifically in the Southern Ocean. The results highlight the role of the South Orkney Islands in connecting the South Georgia and South Sandwich Islands MPA with the Western Antarctic Peninsula, emphasizing the need for the implementation of the proposed MPA.

DIVERSITY AND DISTRIBUTIONS (2022)

Article Evolutionary Biology

Marine surf to freshwater: a molecular phylogeny of Donacidae (Bivalvia: Heterodonta)

Elena Moncada, Arianna Lord, Luiz Ricardo L. Simone, Daniel Adjei-Boateng, Philippe Bouchet, Ellen E. Strong, Rudiger Bieler, Gonzalo Giribet

Summary: Donacidae is a commercially important family of heterodont bivalves that has successfully colonised brackish and fresh waters. Using molecular data and fossil records, we propose an evolutionary hypothesis for this widely distributed group. Our analysis supports the monophyly of Donacidae and reveals the paraphyly of Donax. The diversification of Donacidae is closely linked to the opening of the Atlantic Oceans and the closing of the Tethys Ocean.

INVERTEBRATE SYSTEMATICS (2022)

Article Evolutionary Biology

Closing a biogeographic gap: a new pettalid genus from South Australia (Arachnida : Opiliones : Cyphophthalmi : Pettalidae) with a UCE-based phylogeny of Cyphophthalmi

Gonzalo Giribet, Matthew Shaw, Arianna Lord, Shahan Derkarabetian

Summary: Petallidae is a family of mite harvestmen that inhabit former circum-Antarctic Gondwanan terranes. A new pettalid species, Archaeopurcellia eureka, from South Australia, has been discovered, filling the distributional gap of Australian pettalids. Phylogenetic analyses reveal that the new genus is related to the Chilean Chileogovea, possibly due to the Antarctic land bridge between these two terranes.

INVERTEBRATE SYSTEMATICS (2022)

Article Evolutionary Biology

Cosmopolitan abyssal lineages? A systematic study of East Pacific deep-sea squat lobsters (Decapoda: Galatheoidea: Munidopsidae)

Paula C. Rodriguez-Flores, Charlotte A. Seid, Greg W. Rouse, Gonzalo Giribet

Summary: Munidopsid squat lobsters are abundant decapods in the East Pacific and new species, as well as new distribution records, have been described. Phylogenetic analysis revealed the nesting of Janetogalathea californiensis within Munidopsidae and the reassessment of Phylladiorhynchus and Coralliogalathea's taxonomy. The study also suggests a wider geographic range for abyssal species than previously thought.

INVERTEBRATE SYSTEMATICS (2023)

Article Biodiversity Conservation

Photographic Checklist, DNA Barcoding, and New Species of Sea Slugs and Snails from the Faafu Atoll, Maldives (Gastropoda: Heterobranchia and Vetigastropoda)

Tauana J. Cunha, Jose Fernandez-Simon, Macy Petrula, Gonzalo Giribet, Juan Moles

Summary: Baseline biodiversity data were collected from the Maldivian Archipelago, with a focus on the Faafu and Male Atolls. The study identified 104 species from two gastropod subclasses, Heterobranchia and Vetigastropoda, using snorkeling and scuba diving. The research also provided important COI barcodes and discovered six new species. The findings highlight the significant diversity and potential cryptic species in the region.

DIVERSITY-BASEL (2023)

Article Evolutionary Biology

Sizing Up the Onychophoran Genome: Repeats, Introns, and Gene Family Expansion Contribute to Genome Gigantism in Epiperipatus broadwayi

Shoyo Sato, Tauana J. Cunha, Bruno A. S. de Medeiros, Danielle E. Khost, Timothy B. Sackton, Gonzalo Giribet

Summary: We present the first annotated draft genome for the phylum of Onychophora, a group of cryptic, soil dwelling worms. The genome's large size is due to high repeat content, intron size inflation, and extensive gene family expansion. We also report a previously unknown diversity of onychophoran hemocyanins, suggesting independent diversification of copper-mediated oxygen carriers in Onychophora after its split from Arthropoda and parallel diversification of hemocyanins in each of the main arthropod lineages.

GENOME BIOLOGY AND EVOLUTION (2023)

Article Evolutionary Biology

Expanding on Our Knowledge of Ecdysozoan Genomes: A Contiguous Assembly of the Meiofaunal Priapulan Tubiluchus corallicola

Arianna Lord, Tauana J. Cunha, Bruno A. S. de Medeiros, Shoyo Sato, Danielle E. Khost, Timothy B. Sackton, Gonzalo Giribet

Summary: Genomic data for priapulans are limited, so this study generated a high-quality priapulan genome for Tubiluchus corallicola using a combination of sequencing technologies. The assembled genome had a high level of completeness and was screened for homologs of key genes involved in the molting pathway. The presence of a putative homolog suggests a deeper origin for these genes in Ecdysozoa.

GENOME BIOLOGY AND EVOLUTION (2023)

Article Zoology

An unexpected diversity of Cyphophthalmi (Arachnida: Opiliones) in Upper Cretaceous Burmese amber

Christian Bartel, Jason A. Dunlop, Gonzalo Giribet

Summary: This study describes new Cyphophthalmi specimens from Burmese amber, including fossils representing an ongoing transition in some lineages during the late Cretaceous. The discovery of unique morphological novelties in Cyphophthalmi fossils, such as elongated ozophores and numerous pits covering the body, provides insights into their evolutionary history. The diversity of Cyphophthalmi during the Cretaceous is further supported by the identification of additional specimens with unique adenostyles. The total number of named Burmese amber Cyphophthalmi species is increased from one to six, expanding our knowledge of this suborder's fossil record.

ZOOTAXA (2023)

Biographical-Item Zoology

Raymond Gibson (1938-2023): in memoriam

Alexei V. Chernyshev, Jose E. Fernandez Alfaya, Nuria Anadon, Sonia C. S. Andrade, Thomas Bartolomaeus, Jorn von Dohren, Fernando Angel Fernandez-Alvarez, Gonzalo Giribet, Juan Junoy, Hiroshi Kajihara, William R. Kem, Armand Kuris, Sebastian Kvist, Annie Machordom, Eric G. Mcevoy, Jon L. Norenburg, Robert K. Okazaki, Alex D. Rogers, Malin Strand, Shi-chun Sun, Per Sundberg, Martin Thiel

ZOOTAXA (2023)

Article Evolutionary Biology

Notes on South American triaenonychids, with the description of a new genus from Chile (Opiliones: Laniatores: Triaenonychidae)

Willians Porto, Shahan Derkarabetian, Martin Ramirez, Gonzalo Giribet, Abel Perez-Gonzalez

Summary: This study provides new insights into the phylogeny and external morphology of South American Triaenonychidae, revealing a new genus and two new species.

INVERTEBRATE SYSTEMATICS (2022)

Article Zoology

Morphological and molecular phylogeny of Epiperipatus (Onychophora: Peripatidae): a combined approach

Cristiano S. Costa, Gonzalo Giribet Fls, Ricardo Pinto-Da-Rocha

Summary: Onychophora, or velvet worms, are important for understanding the evolution of Ecdysozoans. The Peripatidae family presents taxonomic issues, especially in the Neotropical region. Research on Neopatida has shown that relying solely on morphological characters is insufficient to resolve phylogenetic relationships at higher taxa, while analyses of molecular or combined data indicate that Neotropical species can be divided into two clades.

ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY (2021)

暂无数据