Genus-level phylogeny of cephalopods using molecular markers: current status and problematic areas

Sánchez, Gustavo; Setiamarga, Davin H. E.; Tuanapaya, Surangkana; Tongtherm, Kittichai; Winkelmann, Inger E.; Schmidbaur, Hannah; Umino, Tetsuya; Albertin, Caroline B.; Allcock, A. Louise; Perales-Raya, C.; Gleadall, Ian G.; Strugnell, Jan M.; Simakov, Oleg; Nabhitabhata, Jaruwat

doi:10.7717/peerj.4331

Cited by 46 publications

(48 citation statements)

References 39 publications

(62 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(2014). The outgroup species were selected because these were found to be part of the Octopodidae sister group, following the latest Octobrachia phylogeny (Sanchez et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

First molecular approach to the octopus fauna from the southern Caribbean

Ritschard

Guerrero-Kommritz²,

Sánchez

2019

PeerJ

View full text Add to dashboard Cite

The octopus fauna from the southern Caribbean is an understudied field. However, recent taxonomic work in the Colombian Caribbean has led to the discovery of several new species in the family Octopodidae. To provide molecular evidence for recent descriptions in the area (i.e., Octopus taganga, O. tayrona and Macrotritopus beatrixi) and contribute to the systematics of the family, we reconstructed the first molecular phylogenies of the family including Colombian Caribbean octopus species. Using cytochrome c oxidase subunit I and rhodopsin sequences from specimens collected in three sites (Santa Marta, Old Providence and San Andrés Islands) we inferred maximum-likelihood trees and delimited species with PTP. Our mitochondrial analysis supported the monophyly of species found in the area (i.e., O. taganga, O. hummelincki and O. briareus). The genetic distinction of the species O. tayrona and O. insularis was not resolved, as these were found in one clade together with Caribbean O. vulgaris and O. aff. tayrona species (O. spB) and delimited as a single species. Additionally, our results suggest a distant relationship of the Type I O. vulgaris group (Caribbean region) from the other forms of the species complex (Old World and Brazil). Lastly, the third newly described species M. beatrixi emerged as an independent lineage and was delimited as a single species. However, its relationship to other species of its genus remains unknown due to the lack of sequences in databases. Altogether, our molecular approach to the octopus fauna from the southern Caribbean adds on information to the relationship of Octopodidae species world-wide by providing sequences from recently described species from an understudied region. Further studies employing higher taxon sampling and more molecular information are needed to fill taxonomic gaps in the area and account for single-locus resolution on the systematics of this group.

show abstract

“…(2014). The outgroup species were selected because these were found to be part of the Octopodidae sister group, following the latest Octobrachia phylogeny (Sanchez et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

First molecular approach to the octopus fauna from the southern Caribbean

Ritschard

Guerrero-Kommritz²,

Sánchez

2019

PeerJ

View full text Add to dashboard Cite

show abstract

“…The study of cephalopod biological innovations 10,18,43,55 is driven by the unique scientific value of these animals for evolutionary genomics, neuroscience and cognition 7,10,18,25,43,55–58 which continues the heritage of the discovery of the action potential in the squid giant axon, a seminal contribution to neuroscience 59 . Furthermore, the phylogenetic relationships within the cephalopods have not yet been fully elucidated and biological research would benefit from more cephalopod genomes 60,61 .…”

Section: Background and Summarymentioning

confidence: 99%

The survey and reference assisted assembly of the Octopus vulgaris genome

Zarrella¹,

Herten

Maes

et al. 2019

Sci Data

Self Cite

View full text Add to dashboard Cite

The common octopus, Octopus vulgaris , is an active marine predator known for the richness and plasticity of its behavioral repertoire, and remarkable learning and memory capabilities. Octopus and other coleoid cephalopods, cuttlefish and squid, possess the largest nervous system among invertebrates, both for cell counts and body to brain size. O . vulgaris has been at the center of a long-tradition of research into diverse aspects of its biology. To leverage research in this iconic species, we generated 270 Gb of genomic sequencing data, complementing those available for the only other sequenced congeneric octopus, Octopus bimaculoides . We show that both genomes are similar in size, but display different levels of heterozygosity and repeats. Our data give a first quantitative glimpse into the rate of coding and non-coding regions and support the view that hundreds of novel genes may have arisen independently despite the close phylogenetic distance. We furthermore describe a reference-guided assembly and an open genomic resource (CephRes-gdatabase), opening new avenues in the study of genomic novelties in cephalopods and their biology.

show abstract

“…The Superfamily Octopodoidea includes the families Octopodidae, Bathypolypodidae, Enteroctopodidae and Megaledonidae, which encompass a high diversity of benthic octopus (Boyle & Rodhouse, 2005;Norman, Hochberg & Finn, 2014;Sanchez et al, 2018). Some species have a planktonic phase before settling on the substrate and are characterised by high fecundity (20,000-500,000 eggs) and small eggs (20-50 mm).…”

Section: Introductionmentioning

confidence: 99%

A biogeographic framework of octopod species diversification: the role of the Isthmus of Panama

Lima

Strugnell

Leite

et al. 2020

PeerJ

Self Cite

View full text Add to dashboard Cite

The uplift of the Isthmus of Panama (IP) created a land bridge between Central and South America and caused the separation of the Western Atlantic and Eastern Pacific oceans, resulting in profound changes in the environmental and oceanographic conditions. To evaluate how these changes have influenced speciation processes in octopods, fragments of two mitochondrial (Cytochrome oxidase subunit I, COI and 16S rDNA) and two nuclear (Rhodopsin and Elongation Factor-1α, EF-1α) genes were amplified from samples from the Atlantic and Pacific oceans. One biogeographical and four fossil calibration priors were used within a relaxed Bayesian phylogenetic analysis framework to estimate divergence times among cladogenic events. Reconstruction of the ancestral states in phylogenies was used to infer historical biogeography of the lineages and species dispersal routes. The results revealed three well-supported clades of transisthmian octopus sister species pair/complex (TSSP/TSSC) and two additional clades showing a low probability of species diversification, having been influenced by the IP. Divergence times estimated in the present study revealed that octopod TSSP/TSSC from the Atlantic and Pacific diverged between the Middle Miocene and Early Pliocene (mean range = 5–18 Ma). Given that oceanographic changes caused by the uplift of the IP were so strong as to affect the global climate, we suggest that octopod TSSP/TSSC diverged because of these physical and environmental barriers, even before the complete uplift of the IP 3 Ma, proposed by the Late Pliocene model. The results obtained in this phylogenetic reconstruction also indicate that the octopus species pairs in each ocean share a recent common ancestor from the Pacific Ocean.

show abstract

Genus-level phylogeny of cephalopods using molecular markers: current status and problematic areas

Cited by 46 publications

References 39 publications

First molecular approach to the octopus fauna from the southern Caribbean

First molecular approach to the octopus fauna from the southern Caribbean

The survey and reference assisted assembly of the Octopus vulgaris genome

A biogeographic framework of octopod species diversification: the role of the Isthmus of Panama

Contact Info

Product

Resources

About