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John P. Sullivan

Researcher at Cornell University

Publications -  46
Citations -  3604

John P. Sullivan is an academic researcher from Cornell University. The author has contributed to research in topics: Monophyly & Clade. The author has an hindex of 21, co-authored 42 publications receiving 2663 citations. Previous affiliations of John P. Sullivan include Academy of Natural Sciences of Drexel University & American Museum of Natural History.

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NCBI Taxonomy: a comprehensive update on curation, resources and tools.

TL;DR: The National Center for Biotechnology Information (NCBI) Taxonomy includes organism names and classifications for every sequence in the nucleotide and protein sequence databases of the International Nucleotide Sequence Database Collaboration.
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A phylogenetic analysis of the major groups of catfishes (Teleostei: Siluriformes) using rag1 and rag2 nuclear gene sequences.

TL;DR: Higher-level relationships among catfishes were investigated by parsimony, maximum likelihood and Bayesian analyses of two nuclear genes across 110 catfish species representing 36 of 37 families and Conorhynchos, confirming monophyly of Siluriformes, of most siluriform families and of a number of multifamily groups.
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Sexual Signal Evolution Outpaces Ecological Divergence during Electric Fish Species Radiation

TL;DR: In this article, the authors quantitatively compare divergence rates for four traits in African mormyrid fishes, which use an electrical communication system with few extrinsic constraints on divergence, and demonstrate rapid signal evolution in the Paramormyrops species flock compared to divergence in morphology, size and trophic ecology.
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Molecular systematics of the african electric fishes (Mormyroidea: teleostei) and a model for the evolution of their electric organs

TL;DR: A reconstruction of electrocyte evolution on the basis of the best-supported topology suggests that electrocytes with penetrating stalks evolved once early in the history of the mormyrids followed by multiple paedomorphic reversals to electrocyces with non-penetrating stalks.