The Phylogenetic Relationships Among Extant Catfishes, With Special Reference to Ictaluridae (Otophysi: Siluriformes)
Hardman, Michael
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https://hdl.handle.net/2142/87840
Description
Title
The Phylogenetic Relationships Among Extant Catfishes, With Special Reference to Ictaluridae (Otophysi: Siluriformes)
Author(s)
Hardman, Michael
Issue Date
2002
Doctoral Committee Chair(s)
Page, Lawrence M.
Department of Study
Animal Biology
Discipline
Animal Biology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Biology, Genetics
Language
eng
Abstract
Cytochrome b suggested cryptic diversity within several species of Noturus. Relationships among members of the subgenus Rabida were resolved and in many cases well supported. Relationships among Schilbeodes were poorly resolved. A calibrated substitution rate identified a period between 8 and 2 million years ago in which the majority of cladogenesis took place in Rabida. A novel hypothesis of relationships among surface-dwelling ictalurid genera is provided in which Ameiurus is the sister group to a clade composed of Ictalurus, Pylodictis and Noturus, in which Ictalurus is the sister group to Pylodictis and Noturus.
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