Casey W. Dunn
Yale University
Phylogenetic treeEvolutionary biologyBiologyPhylogeneticsZoology
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Publications 69
#1Stacey D. Smith (CU: University of Colorado Boulder)H-Index: 23
#2Matthew W. Pennell (UBC: University of British Columbia)H-Index: 21
Last. Scott V. Edwards (Harvard University)H-Index: 61
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Despite substantial progress in understanding the genetic basis for differences in morphology, physiology, and behavior, many phenotypes of interest are difficult to study with traditional genetic approaches because their origin traces to deep nodes in the tree of life. Moreover, many species are not amenable to either large-scale sampling or laboratory crosses. We argue that phylogenetic methods and theory provide tremendous power to identify the functional genetic variation underlying trait ev...
#1Li-Gen Wang (Southern Medical University)H-Index: 1
#2Tommy Tsan-Yuk Lam (HKU: University of Hong Kong)H-Index: 31
Last. Guangchuang Yu (Southern Medical University)H-Index: 14
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Phylogenetic trees and data are often stored in incompatible and inconsistent formats. The outputs of software tools that contain trees with analysis findings are often not compatible with each other, making it hard to integrate the results of different analyses in a comparative study. The treeio package is designed to connect phylogenetic tree input and output. It supports extracting phylogenetic trees as well as the outputs of commonly used analytical software. It can link external data to phy...
5 CitationsSource
#1Catriona Munro (Brown University)H-Index: 4
#2Zer Vue (BCM: Baylor College of Medicine)H-Index: 1
Last. Casey W. Dunn (Yale University)H-Index: 27
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The Portuguese man of war, Physalia physalis, is one of the most conspicuous, but poorly understood members of the pleuston, a community of organisms that occupy a habitat at the sea-air interface. Physalia physalis is a siphonophore that uses a gas-filled float as a sail to catch the wind. The development, morphology, and colony organization of P. physalis is very different from all other siphonophores. Here, we look at live and fixed larval and juvenile specimens, and use optical projection to...
1 CitationsSource
#1Alejandro Damian-Serrano (Yale University)H-Index: 1
#2Steven H. D. Haddock (MBARI: Monterey Bay Aquarium Research Institute)H-Index: 30
Last. Casey W. Dunn (Yale University)H-Index: 27
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Predators have evolved dedicated body parts to capture and subdue prey. As different predators specialize on distinct prey taxa, their tools for prey capture diverge into a variety of adaptive forms. Studying the evolution of predation is greatly facilitated by a predator clade with structures used exclusively for prey capture that present significant morphological variation. Siphonophores, a clade of colonial cnidarians, satisfy these criteria particularly well, capturing prey with their tentil...
#1Catriona Munro (Brown University)H-Index: 4
#2Stefan Siebert (Brown University)H-Index: 10
Last. Casey W. Dunn (Yale University)H-Index: 27
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Abstract Siphonophores are a diverse group of hydrozoans (Cnidaria) that are found at most depths of the ocean - from the surface, like the familiar Portuguese man of war, to the deep sea. They play important roles in ocean ecosystems, and are among the most abundant gelatinous predators. A previous phylogenetic study based on two ribosomal RNA genes provided insight into the internal relationships between major siphonophore groups. There was, however, little support for many deep relationships ...
3 CitationsSource
#1P.R. Pugh (NOC: National Oceanography Centre)H-Index: 9
#2Casey W. Dunn (Yale University)H-Index: 27
Last. Steven H. D. Haddock (MBARI: Monterey Bay Aquarium Research Institute)H-Index: 30
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A new species of calycophoran siphonophore, Tottonophyes enigmatica gen. nov, sp. nov., is described. It has a unique combination of traits, some shared with prayomorphs (including two rounded nectophores) and some with clausophyid diphyomorphs (the nectophores are dissimilar, with one slightly larger and slightly to the anterior of the other, and both possess a somatocyst). Molecular phylogenetic analyses indicate that the new species is the sister group to all other diphyomorphs. A new family,...
#1Casey W. Dunn (Brown University)H-Index: 27
#2Felipe Zapata (UCLA: University of California, Los Angeles)H-Index: 13
Last. Andreas Hejnol (University of Bergen)H-Index: 29
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There is considerable interest in comparing functional genomic data across species. One goal of such work is to provide an integrated understanding of genome and phenotype evolution. Most comparative functional genomic studies have relied on multiple pairwise comparisons between species, an approach that does not incorporate information about the evolutionary relationships among species. The statistical problems that arise from not considering these relationships can lead pairwise approaches to ...
22 CitationsSource
#1Rebecca R. Helm (Brown University)H-Index: 6
#2Casey W. Dunn (Brown University)H-Index: 27
Many animals go through one or more metamorphoses during their lives, however, the molecular underpinnings of metamorphosis across diverse species are not well understood. Medusozoa (Cnidaria) is a clade of animals with complex life cycles, these life cycles can include a polyp stage that metamorphoses into a medusa (jellyfish). Medusae are produced through a variety of different developmental mechanisms—in some species polyps bud medusae (Hydrozoa), in others medusae are formed through polyp fi...
3 CitationsSource
#1Steven H. D. Haddock (UCSC: University of California, Santa Cruz)H-Index: 4
#2Lynne M. Christianson (MBARI: Monterey Bay Aquarium Research Institute)H-Index: 5
Last. Erik V. Thuesen (The Evergreen State College)H-Index: 20
view all 24 authors...