Christopher C. Witt
University of New Mexico
108 Papers
365 Citations
Christopher C. Witt is an academic researcher from University of New Mexico. The author has contributed to research in topics: Biology & Phylogenetic tree. The author has an hindex of 30, co-authored 100 publications. Previous affiliations of Christopher C. Witt include Louisiana State University & University of Florida.
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Papers
A Phylogenomic Study of Birds Reveals Their Evolutionary History
Shannon J. Hackett,Rebecca T. Kimball,Sushma Reddy,Rauri C. K. Bowie,Edward L. Braun,Michael J. Braun,Jena L. Chojnowski,W. Andrew Cox,Kin Lan Han,John Harshman,Christopher J. Huddleston,Ben D. Marks,Kathleen J. Miglia,William S. Moore,Frederick H. Sheldon,David W. Steadman,Christopher C. Witt,Tamaki Yuri +17 more
TL;DR: This study examined ∼32 kilobases of aligned nuclear DNA sequences from 19 independent loci for 169 species, representing all major extant groups, and recovered a robust phylogeny from a genome-wide signal supported by multiple analytical methods.
Dense sampling of bird diversity increases power of comparative genomics.
Shaohong Feng,Josefin Stiller,Yuan Deng,Joel Armstrong,Joel Armstrong,Qi Fang,Andrew Hart Reeve,Duo Xie,Guangji Chen,Chunxue Guo,Brant C. Faircloth,Bent O. Petersen,Zongji Wang,Qi Zhou,Qi Zhou,Mark Diekhans,Mark Diekhans,Wanjun Chen,Sergio Andreu-Sánchez,Ashot Margaryan,Ashot Margaryan,Jason T. Howard,Carole A. Parent,George Pacheco,Mikkel-Holger S. Sinding,Lara Puetz,Emily Cavill,Ângela M. Ribeiro,Leopold Eckhart,Jon Fjeldså,Peter A. Hosner,Robb T. Brumfield,Les Christidis,Mads F. Bertelsen,Thomas Sicheritz-Pontén,Dieter Thomas Tietze,Bruce C. Robertson,Gang Song,Gerald Borgia,Santiago Claramunt,Santiago Claramunt,Irby J. Lovette,Saul J. Cowen,Peter Njoroge,John P. Dumbacher,Oliver A. Ryder,Jérôme Fuchs,Michael Bunce,David W. Burt,Joel Cracraft,Guanliang Meng,Shannon J. Hackett,Peter G. Ryan,Knud A. Jønsson,Ian G. Jamieson,Rute R. da Fonseca,Edward L. Braun,Peter Houde,Siavash Mirarab,Alexander Suh,Alexander Suh,Bengt Hansson,Suvi Ponnikas,Hanna Sigeman,Martin Stervander,Martin Stervander,Paul B. Frandsen,Paul B. Frandsen,Henriette van der Zwan,Rencia van der Sluis,Carina Visser,Christopher N. Balakrishnan,Andrew G. Clark,John W. Fitzpatrick,Reed Bowman,Nancy F. Chen,Alison Cloutier,Timothy B. Sackton,Scott V. Edwards,Dustin J. Foote,Subir B. Shakya,Frederick H. Sheldon,Alain Vignal,André E. R. Soares,Beth Shapiro,Jacob González-Solís,Joan Ferrer-Obiol,Julio Rozas,Marta Riutort,Anna Tigano,Anna Tigano,Vicki L. Friesen,Love Dalén,Araxi O. Urrutia,Araxi O. Urrutia,Tamás Székely,Yang Liu,Michael G. Campana,André Corvelo,Robert C. Fleischer,Kim Rutherford,Neil J. Gemmell,Nicolas Dussex,Nicolas Dussex,Henrik Mouritsen,Nadine Thiele,Kira E. Delmore,Kira E. Delmore,Miriam Liedvogel,Andre Franke,Marc P. Hoeppner,Oliver Krone,Adam M. Fudickar,Borja Milá,Ellen D. Ketterson,Andrew E. Fidler,Guillermo Friis,Ángela M. Parody-Merino,Phil F. Battley,Murray P. Cox,Nicholas Costa Barroso Lima,Francisco Prosdocimi,Thomas L. Parchman,Barney A. Schlinger,Bette A. Loiselle,John G. Blake,Haw Chuan Lim,Haw Chuan Lim,Lainy B. Day,Matthew J. Fuxjager,Maude W. Baldwin,Michael J. Braun,Morgan Wirthlin,Rebecca B. Dikow,T. Brandt Ryder,Glauco Camenisch,Lukas F. Keller,Jeffrey M. DaCosta,Mark E. Hauber,Matthew I. M. Louder,Christopher C. Witt,Jimmy A. McGuire,Joann Mudge,Libby C. Megna,Matthew D. Carling,Biao Wang,Scott A. Taylor,Glaucia Del-Rio,Alexandre Aleixo,Ana Tereza Ribeiro de Vasconcelos,Claudio V. Mello,Jason T. Weir,Jason T. Weir,David Haussler,David Haussler,Qiye Li,Huanming Yang,Jian Wang,Fumin Lei,Carsten Rahbek,M. Thomas P. Gilbert,M. Thomas P. Gilbert,Gary R. Graves,Gary R. Graves,Erich D. Jarvis,Erich D. Jarvis,Erich D. Jarvis,Benedict Paten,Benedict Paten,Guojie Zhang +169 more
TL;DR: The densely sampled alignment provides a single-base-pair map of selection, has more than doubled the fraction of bases that are confidently predicted to be under conservation and reveals extensive patterns of weak selection in predominantly non-coding DNA.
Molecular Phylogenetics and the Diversification of Hummingbirds
Jimmy A. McGuire,Christopher C. Witt,J. V. Remsen,Ammon Corl,Daniel L. Rabosky,Douglas L. Altshuler,Robert Dudley +6 more
TL;DR: This work estimates the age of the crown-group hummingbird assemblage, investigates the timing and patterns of lineage accumulation for hummingbirds overall and regionally, and evaluates the role of Andean uplift in hummingbird speciation.
398
Why Do Phylogenomic Data Sets Yield Conflicting Trees? Data Type Influences the Avian Tree of Life more than Taxon Sampling.
Sushma Reddy,Rebecca T. Kimball,Akanksha Pandey,Peter A. Hosner,Peter A. Hosner,Michael J. Braun,Shannon J. Hackett,Kin Lan Han,John Harshman,Christopher J. Huddleston,Sarah E. Kingston,Sarah E. Kingston,Sarah E. Kingston,Ben D. Marks,Kathleen J. Miglia,William S. Moore,Frederick H. Sheldon,Christopher C. Witt,Tamaki Yuri,Tamaki Yuri,Edward L. Braun +20 more
TL;DR: If incongruence among trees estimated using phylogenomic methods largely reflects problems with model fit developing more “biologically‐realistic” models is likely to be critical for efforts to reconstruct the tree of life.
318
Phylogenetic systematics and biogeography of hummingbirds: Bayesian and maximum likelihood analyses of partitioned data and selection of an appropriate partitioning strategy.
TL;DR: These analyses indicate that the basal hummingbird assemblages originated in the lowlands of South America, that most of the principle clades of hummingbirds (all but Mountain Gems and possibly Bees) originated on this continent, and that there have been many (at least 30) independent invasions of other primary landmasses, especially Central America.