Phylogeny of the neotropical armored catfishes of the subfamily Loricariinae (Siluriformes: Loricariidae)

Persistent Link:
http://hdl.handle.net/10150/282395
Title:
Phylogeny of the neotropical armored catfishes of the subfamily Loricariinae (Siluriformes: Loricariidae)
Author:
Rapp Py-Daniel, Lucia, 1956-
Issue Date:
1997
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Evidence for the monophyly of Loricariinae is presented using phylogenetic analysis (maximum parsimony in PAUP*) of osteological and external morghological characters. The two different analyses used, with the characters unordered and the characters partly ordered, produced the same levels of relationship among the ingroup taxa, displaying similar support (similar values of decay index and bootstrap). The analyses showed differences in the Loricariinae sister group. In the unordered analysis, the sistes group of the Loricariinae is a clade formed by representatives of Hypostominae, Ancistrinae and Hypoptopomatinae. In the ordered analysis, Neoplecostomus came out as the sister group of Loricariinae. Loricariinae is diagnosed by a large set of synapomorphies under both data sets. Loricariinae is subdivided in two large clades, Loricariini Bonaparte, 1831 and Harttiini Boeseman, 1971, which basically comprise the genera originally assigned. Loricariini comprises two subclades here named after already available taxa, Hemiodontichthyina (Isbrucker, 1979) and Planiloricariina (Isbrucker, 1979, 1980), plus the genera Loricaria, Spatuloricaria and the non-monophyletic Rineloricaria. Harttiini comprises two subclades, Farlowellina (Fowler, 1958) and Harttiina (Boeseman, 1971), plus the genus Sturisomatichthys. In Planiloricariina, Crossoloricaria came out non-monophyletic, and Crossoloricaria and Apistoloricaria are synonymized to Rhadinoloricaria, since these taxa are not supported separately, but as a clade. All taxa inside Loricariinae are diagnosed phylogenetically. The phylogenetic results are discussed under the current systematics for the group. Taxa not available for the analyses were tentatively placed within the phylogenetic hypothesis proposed. New systematic accounts are provided. The co-occurrence of extreme sets of apomorphies is discussed. Due to the positive correlation between sex dimorphic traits and monophyletic groups, a hypothesis on origin of dimorphic traits in Loricariinae is inferred.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Biology, Zoology.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Graduate College; Ecology and Evolutionary Biology
Degree Grantor:
University of Arizona
Advisor:
Lundberg, John Graham

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titlePhylogeny of the neotropical armored catfishes of the subfamily Loricariinae (Siluriformes: Loricariidae)en_US
dc.creatorRapp Py-Daniel, Lucia, 1956-en_US
dc.contributor.authorRapp Py-Daniel, Lucia, 1956-en_US
dc.date.issued1997en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractEvidence for the monophyly of Loricariinae is presented using phylogenetic analysis (maximum parsimony in PAUP*) of osteological and external morghological characters. The two different analyses used, with the characters unordered and the characters partly ordered, produced the same levels of relationship among the ingroup taxa, displaying similar support (similar values of decay index and bootstrap). The analyses showed differences in the Loricariinae sister group. In the unordered analysis, the sistes group of the Loricariinae is a clade formed by representatives of Hypostominae, Ancistrinae and Hypoptopomatinae. In the ordered analysis, Neoplecostomus came out as the sister group of Loricariinae. Loricariinae is diagnosed by a large set of synapomorphies under both data sets. Loricariinae is subdivided in two large clades, Loricariini Bonaparte, 1831 and Harttiini Boeseman, 1971, which basically comprise the genera originally assigned. Loricariini comprises two subclades here named after already available taxa, Hemiodontichthyina (Isbrucker, 1979) and Planiloricariina (Isbrucker, 1979, 1980), plus the genera Loricaria, Spatuloricaria and the non-monophyletic Rineloricaria. Harttiini comprises two subclades, Farlowellina (Fowler, 1958) and Harttiina (Boeseman, 1971), plus the genus Sturisomatichthys. In Planiloricariina, Crossoloricaria came out non-monophyletic, and Crossoloricaria and Apistoloricaria are synonymized to Rhadinoloricaria, since these taxa are not supported separately, but as a clade. All taxa inside Loricariinae are diagnosed phylogenetically. The phylogenetic results are discussed under the current systematics for the group. Taxa not available for the analyses were tentatively placed within the phylogenetic hypothesis proposed. New systematic accounts are provided. The co-occurrence of extreme sets of apomorphies is discussed. Due to the positive correlation between sex dimorphic traits and monophyletic groups, a hypothesis on origin of dimorphic traits in Loricariinae is inferred.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectBiology, Zoology.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineEcology and Evolutionary Biologyen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorLundberg, John Grahamen_US
dc.identifier.proquest9806759en_US
dc.identifier.bibrecord.b37515810en_US
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