98 Works

Data from: The effect of DNA degradation bias in passive sampling devices on metabarcoding studies of arthropod communities and their associated microbiota

Henrik Krehenwinkel, Marisa Fong, Susan Kennedy, Edward Greg Huang, Suzuki Noriyuki, Luis Cayetano & Rosemary Gillespie
PCR amplification bias is a well-known problem in metagenomic analysis of arthropod communities. In contrast, variation of DNA degradation rates is a largely neglected source of bias. Differential degradation of DNA molecules could cause underrepresentation of taxa in a community sequencing sample. Arthropods are often collected by passive sampling devices, like malaise traps. Specimens in such a trap are exposed to varying periods of suboptimal storage and possibly different rates of DNA degradation. Degradation bias...

Data from: Estimating and mitigating amplification bias in qualitative and quantitative arthropod metabarcoding

Henrik Krehenwinkel, Madeline Wolf, Jun Ying Lim, Andrew J. Rominger, Warren B. Simison & Rosemary G. Gillespie
Amplicon based metabarcoding promises rapid and cost-efficient analyses of species composition. However, it is disputed whether abundance estimates can be derived from metabarcoding due to taxon specific PCR amplification biases. PCR-free approaches have been suggested to mitigate this problem, but come with considerable increases in workload and cost. Here, we analyze multilocus datasets of diverse arthropod communities, to evaluate whether amplification bias can be countered by (1) targeting loci with highly degenerate primers or conserved...

Data from: Quantifying the dark data in museum fossil collections as palaeontology undergoes a second digital revolution

Charles R. Marshall, Seth Finnegan, Erica C. Clites, Patricia A. Holroyd, Nicole Bonuso, Crystal Cortez, Edward Davis, Gregory P. Dietl, Patrick S. Druckenmiller, Ron C. Eng, Christine Garcia, Kathryn Estes-Smargiassi, Austin Hendy, Kathy A. Hollis, Holly Little, Elizabeth A. Nesbitt, Peter Roopnarine, Leslie Skibinski, Jann Vendetti & Lisa D. White
Large-scale analysis of the fossil record requires aggregation of palaeontological data from individual fossil localities. Prior to computers these synoptic datasets were compiled by hand, a laborious undertaking that took years of effort and forced palaeontologists to make difficult choices about what types of data to tabulate. The advent of desktop computers ushered in palaeontology’s first digital revolution – online literature-based databases, such as the Paleobiology Database (PBDB). However, the published literature represents only a...

Data from: A phylogenomic resolution of the sea urchin tree of life

Nicolás Mongiardino Koch, Simon E. Coppard, Harilaos A. Lessios, Derek E.G. Briggs, Rich Mooi & Greg W. Rouse
Background: Echinoidea is a clade of marine animals including sea urchins, heart urchins, sand dollars and sea biscuits. Found in benthic habitats across all latitudes, echinoids are key components of marine communities such as coral reefs and kelp forests. A little over 1,000 species inhabit the oceans today, a diversity that traces its roots back at least to the Permian. Although much effort has been devoted to elucidating the echinoid tree of life using a...

Supplementary information for aquatic and blood-feeding Diptera

Nina Pak, Allan Cabrero, Keith Bayless & Michelle Trautwein
Aquatic Diptera are some of the most diverse and notable flies, impacting human health and providing ecosystem services. Despite the importance of aquatic Diptera, the evolution of aquatic life history and blood-feeding, are not sufficiently understood. Here, we examine the evolution of aquatic life histories and their associations with blood-feeding across Diptera. Aquatic and blood-feeding Diptera are phylogenetically conserved across the fly tree of life. We found evidence that the most recent common ancestor of...

Additional file 1 of Low-abundance populations distinguish microbiome performance in plant cell wall deconstruction

Lauren M. Tom, Martina Aulitto, Yu-Wei Wu, Kai Deng, Yu Gao, Naijia Xiao, Beatrice Garcia Rodriguez, Clifford Louime, Trent R. Northen, Aymerick Eudes, Jenny C. Mortimer, Paul D. Adams, Henrik V. Scheller, Blake A. Simmons, Javier A. Ceja-Navarro & Steven W. Singer
Additional file 1: Supplementary Fig. 1. Residual dry weight biomass after a 56-day incubation. The figure shows that three incubations diverge in terms of biomass degradation. Supplementary Fig. 2. Phylogenetic tree reconstructed based on 49 core universal genes defined by Clusters of Orthologous Groups (COGs) using maximum likelihood. The tree was reconstructed on KBase. Supplementary Fig. 3. Gene proportion per MAG for selected GHs. MAGs with a completeness above 30% and contamination level lower than...

Recent dispersal and diversification within the clingfish genus Acyrtus (Actinopterygii: Gobiesocidae), with the description of a new western Atlantic species

Thais L. Quintão, João Luiz Gasparini, Jean-Christophe Joyeux, Luiz A. Rocha & Hudson T. Pinheiro
Abstract The genus Acyrtus (Gobiesocidae) is represented by four valid species distributed in the western Atlantic, and a recently described fifth species from the eastern Pacific. Here, we describe a new species endemic to Trindade Island, Brazil, and provide the first phylogenetic inference for the genus including all representatives. The new species can be distinguished from all its congeners by meristic and morphometric characters, as well as genetic differences. It presents low genetic diversity and,...

Data from: Brazilian marsupial frogs are diphyletic (Anura: Hemiphractidae: Gastrotheca)

David C. Blackburn & William E. Duellman
Molecular phylogenetic analyses based on expanded taxonomic and geographic sampling support the monophyly of the marsupial frog genera (family Hemiphractidae), resolve six geographically circumscribed lineages within Gastrotheca, and, for the first time, reveal that two divergent lineages of Gastrotheca inhabit the Atlantic Coastal Forests of Brazil. Within Gastrotheca, the earliest diverging clade is confined to northeastern Brazil, whereas the three subsequent diverging lineages are restricted to northern Venezuela (G. walkeri), southeastern Brazil, and northwestern South...

Data from: The rise of army ants and their relatives: diversification of specialized predatory doryline ants

Sean G. Brady, Brian L. Fisher, Ted R. Schultz & Philip S. Ward
Background Army ants are dominant invertebrate predators in tropical and subtropical terrestrial ecosystems. Their close relatives within the dorylomorph group of ants are also highly specialized predators, although much less is known about their biology. We analyzed molecular data generated from 11 nuclear genes to infer a phylogeny for the major dorylomorph lineages, and incorporated fossil evidence to infer divergence times under a relaxed molecular clock. Results Because our results indicate that one subfamily and...

Data from: Why is Madagascar special? The extraordinarily slow evolution of pelican spiders (Araneae, Archaeidae)

Hannah Marie Wood, Rosemary G. Gillespie, Charles E. Griswold & Peter C. Wainwright
Although Madagascar is an ancient fragment of Gondwana, the majority of taxa studied thus far appear to have reached the island through dispersal from Cenozoic times. Ancient lineages may have experienced a different history compared to more recent Cenozoic arrivals, as such lineages would have encountered geoclimatic shifts over an extended time period. The motivation for this study was to unravel the signature of diversification in an ancient lineage by comparing an area known for...

Data from: Seascape genetics along environmental gradients in the Arabian Peninsula: insights from ddRAD sequencing of anemonefishes

Pablo Saenz-Agudelo, Joseph D. DiBattista, Marek J. Piatek, Michelle R. Gaither, Hugo B. Harrison, Gerrit B. Nanninga & Michael L. Berumen
Understanding the processes that shape patterns of genetic structure across space is a central aim of landscape genetics. However, it remains unclear how geographic features and environmental variables shape gene flow, particularly for marine species in large complex seascapes. Here, we evaluated the genomic composition of the two-band anemonefish Amphiprion bicinctus across its entire geographic range in the Red Sea and Gulf of Aden, as well as its close relative, Amphiprion omanensis endemic to the...

Data from: Mulloidichthys flavolineatus flavicaudus Fernandez-Silva & Randall subsp. n. (Perciformes: Mullidae), a new subspecies of goatfish from the Red Sea and Arabian Sea

Iria Fernandaz-Silva, John Randall, Daniel Golani, Sergey V. Bogorodsky, Iria Fernandez-Silva & John E. Randall
The number of goatfish sp­­ecies has increased recently, thanks in part to the application of molecular approaches to the taxonomy of a family with conservative morphology and widespread intraspecific color variation. A new subspecies Mulloidichthys flavolineatus flavicaudus Fernandez-Silva & Randall subsp. n. is described from the Red Sea and Arabian Sea, including Socotra and Gulf of Oman. The two subspecies are distinguished by 1.7% sequence divergence at the mitochondrial cytochrome b gene, a yellow caudal...

Data from: Understanding past population dynamics: Bayesian coalescent-based modeling with covariates

Mandev S. Gill, Philippe Lemey, Shannon N. Bennett, Roman Biek & Marc A. Suchard
Effective population size characterizes the genetic variability in a population and is a parameter of paramount importance in population genetics and evolutionary biology. Kingman's coalescent process enables inference of past population dynamics directly from molecular sequence data, and researchers have developed a number of flexible coalescent-based models for Bayesian nonparametric estimation of the effective population size as a function of time. Major goals of demographic reconstruction include identifying driving factors of effective population size, and...

Data from: Angelfishes, paper tigers and the devilish taxonomy of the Centropyge flavissima complex

Joseph D. DiBattista, Michelle R. Gaither, Jean-Paul A. Hobbs, Luiz A. Rocha & Brian W. Bowen
The pygmy angelfishes (genus Centropyge) provide numerous examples of discordance between color morphology, taxonomy and evolutionary genetic lineages. This discordance is especially evident in the Centropyge flavissima complex, which includes three primary color morphs, three previously recognized species (C. flavissima, C. eibli and C. vrolikii) and three distinct mitochondrial (mtDNA) lineages that do not align with species designations. Our previous research showed that the putative C. flavissima arose independently in the Indian and Pacific Oceans,...

Data from: Taxonomic revision of the Malagasy Camponotus grandidieri and niveosetosus species groups (Hymenoptera, Formicidae) using qualitative and quantitative morphology

Jean Claude Rakotonirina, Sándor Csősz & Brian L. Fisher
The Camponotus grandidieri species group and Camponotus niveosetosus species group of the Malagasy region are revised. Species delimitation was inferred from the evidence of both qualitative morphological analysis and multivariate morphometry. The multivariate method combined the Nest Centroid (NC)-clustering method and Partitioning Algorithm based on Recursive Thresholding (PART) function to generate hypotheses about species boundaries (clusters) based on 19 continuous morphological traits of minor workers. The proposed species hypotheses were tested by cumulative cross-validated Linear...

Data from: X-ray microtomography for ant taxonomy: an exploration and case study with two new Terataner (Hymenoptera, Formicidae, Myrmicinae) species from Madagascar

Francisco Hita Garcia, Georg Fischer, Cong Liu, Tracy L. Audisio, Gary D. Alpert, Brian L. Fisher & Evan P. Economo
We explore the potential of x-ray micro computed tomography (μCT) for the field of ant taxonomy by using it to enhance the descriptions of two remarkable new species of the ant genus Terataner: T. balrog sp. n. and T. nymeria sp. n.. We provide an illustrated worker-based species identification key for all species found on Madagascar, as well as detailed taxonomic descriptions, which include diagnoses, discussions, measurements, natural history data, high-quality montage images and distribution...

Macroevolutionary patterns of sexual size dimorphism among African tree frogs (Family: Hyperoliidae)

Daniel Portik, David Blackburn & Jimmy McGuire
Sexual size dimorphism (SSD) is shaped by multiple selective forces that drive the evolution of sex-specific body size, resulting in male or female-biased SSD. Stronger selection on one sex can result in an allometric body-size scaling relationship consistent with Rensch’s rule or its converse. Anurans (frogs and toads) generally display female-biased SSD, but there is variation across clades and the mechanisms driving the evolution of SSD remain poorly understood. We investigated these topics in a...

Data from: Multilocus phylogeny of Gryllus field crickets (Orthoptera: Gryllidae: Gryllinae) utilizing anchored hybrid enrichment

David Gray, David Weissman, Jeffrey Cole, Emily Lemmon & Alan Lemmon
We present the first comprehensive molecular phylogeny of Gryllus field cricket species found in the United States and Canada, select additional named Gryllus species found in Mexico and the Bahamas, plus the European field cricket G. campestris Linnaeus and the Afro-Eurasian cricket G. bimaculatus De Geer. Acheta, Teleogryllus, and Nigrogryllus were used as outgroups. Anchored hybrid enrichment was used to generate 492,531 base pairs of DNA sequence from 563 loci. RAxML analysis of concatenated sequence...

Data from: Paleotropical diversification dominates the evolution of the hyperdiverse ant tribe Crematogastrini (Hymenoptera: Formicidae)

Bonnie B. Blaimer, Philip S. Ward, Ted R. Schultz, Brian L. Fisher & Seán G. Brady
Levels of diversity vary strikingly among different phylogenetic lineages of ants. Rapid radiations in early ant evolution have often proven difficult to resolve with traditional Sanger-sequencing data sets of modest size. We provide a phylogenomic perspective on the evolution of the hyperdiverse ant tribe Crematogastrini by analyzing sequence data for nearly 1800 ultraconserved element (UCE) loci from 153 species comprising 56 genera. We reconstruct a next-to-complete genus-level phylogeny using concatenated maximum-likelihood and species-tree approaches, estimate...

Alignments of Sequence Data for Phylogenetic Analysis of Damsel

Emily McFarland, Carole Baldwin, D Ross Robertson, Luiz Rocha & Luke Tornabene
Initially described in 1882, Chromis enchrysurus, the Yellowtail Reeffish, was redescribed in 1982 to account for an observed color morph that possesses a white tail instead of a yellow one, but morphological and geographic boundaries between the two color morphs were not well understood. Taking advantage of newly collected material from submersible studies of deep reefs and photographs from rebreather dives, we sought to determine whether the white-tailed Chromis is actually a color morph of...

Evolutionary drivers of sexual signal variation in Amazon slender anoles

Ivan Prates, Annelise D'Angiolella, Miguel Rodrigues, Paulo Melo-Sampaio, Kevin De Queiroz & Rayna Bell
Phenotypic variation among populations, as seen in the signaling traits of many species, provides an opportunity to test whether similar factors generate repeated phenotypic patterns in different parts of a species’ range. We investigated whether genetic divergence, abiotic gradients, and sympatry with closely related species explain variation in the dewlap colors of Amazon Slender Anoles, Anolis fuscoauratus. To this aim, we characterized dewlap diversity in the field with respect to population genetic structure and evolutionary...

A target enrichment probe set for resolving the flagellate land plant tree of life

Jesse W. Breinholt, Sarah B. Carey, George P. Tiley, E. Christine Davis, Lorena Endara, Stuart F. McDaniel, Leandro Neves, Emily B. Sessa, Matt Von Konrat, Susan Fawcett, Stefanie M. Ickert-Bond, Paulo H. Labiak, Juan Larraín, Marcus Lehnert, Lily R. Lewis, Nathalie S. Nagalingum, Nikisha Patel, Stefan A. Rensing, Weston Testo, Alejandra Vasco, Juan Carlos Villarreal, Evelyn Webb Williams, J. Gordon Burleigh, Sahut Chantanaorrapint, Leandro G. Neves … & Stefanie M. Ickert‐Bond
Premise of the Study: New sequencing technologies enable the possibility of generating large-scale molecular datasets for constructing the plant tree of life. We describe a new probe set for target enrichment sequencing to generate nuclear sequence data to build phylogenetic trees with any flagellate land plants, including hornworts, liverworts, mosses, lycophytes, ferns, and all gymnosperms. Methods and Results: We leveraged existing transcriptome and genome sequence data to design a set of 56,989 probes for target...

The global distribution of known and undiscovered ant biodiversity

Jamie Kass, Benoit Guénard, Kenneth Dudley, Clinton Jenkins, Fumika Azuma, Brian Fisher, Catherine Parr, Heloise Gibb, John Longino, Philip Ward, Anne Chao, David Lubertazzi, Michael Weiser, Walter Jetz, Robert Guralnick, Rumsaïs Blatrix, James Des Lauriers, David Donoso, Christos Georgiadis, Kiko Gomez, Peter Hawkes, Robert Johnson, John Lattke, Joe MacGown, William Mackay … & Evan Economo
Invertebrates constitute the majority of animal species and are critical for ecosystem functioning and services. Nonetheless, global invertebrate biodiversity patterns and their congruences with vertebrates remain largely unknown. We resolve the first high-resolution (~20-km) global diversity map for a major invertebrate clade, ants, using biodiversity informatics, range modeling, and machine learning to synthesize existing knowledge and predict the distribution of undiscovered diversity. We find that ants and different vertebrate groups have distinct features in their...

Data for: Phylogeography and populations genetics of a widespread cold-adapted ant, Prenolepis imparis

Maria Tonione, Ke Bi, Robert Dunn, Andrea Lucky, Dan Portik & Neil Tsutsui
Historical climate fluctuations have left genetic signatures on species and populations across North America. Here, we used phylogenetic and population genetic analyses from 1,402 orthologous sequences of 75 individuals obtained through sequencing of Ultraconserved Elements (UCEs) to identify population genetic structure and historical demographic patterns across the range of a widespread, cold-adapted ant, the winter ant, Prenolepis imparis. We relate the genomic patterns to those expected as a result of in situ diversification, maintained connectivity,...

Additional file 1 of Low-abundance populations distinguish microbiome performance in plant cell wall deconstruction

Lauren M. Tom, Martina Aulitto, Yu-Wei Wu, Kai Deng, Yu Gao, Naijia Xiao, Beatrice Garcia Rodriguez, Clifford Louime, Trent R. Northen, Aymerick Eudes, Jenny C. Mortimer, Paul D. Adams, Henrik V. Scheller, Blake A. Simmons, Javier A. Ceja-Navarro & Steven W. Singer
Additional file 1: Supplementary Fig. 1. Residual dry weight biomass after a 56-day incubation. The figure shows that three incubations diverge in terms of biomass degradation. Supplementary Fig. 2. Phylogenetic tree reconstructed based on 49 core universal genes defined by Clusters of Orthologous Groups (COGs) using maximum likelihood. The tree was reconstructed on KBase. Supplementary Fig. 3. Gene proportion per MAG for selected GHs. MAGs with a completeness above 30% and contamination level lower than...

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  • California Academy of Sciences
  • University of California, Berkeley
  • University of California, Davis
  • The University of Texas at Austin
  • Smithsonian Institution
  • University of Adelaide
  • Jilin University
  • Karolinska University Hospital
  • Huazhong University of Science and Technology
  • University of Washington