Search results for: Henry L. Bart

Items from 1 to 20 out of 24 results

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Species of the cyprinid genus Garra in Mount Kenya, East Africa: Species delineation, taxonomy and historical biogeography

Liang Cao, Wanja Dorothy Nyingi, Henry L. Bart Jr, E Zhang

The cyprinid genus Garra is so far represented in Mount Kenya streams by a single species, but which species it should be referred to as remains yet to be determined. Molecular phylogenetic analysis of Garra species from the mountain is still lacking. Here, an integrative analysis, based on morphological and molecular data, unravelled the hidden species diversity of Garra from Mount Kenya. In mitochondrial...

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Unrecognized and imperilled diversity in an endemic barb (Smiliogastrini, Enteromius) from the Fouta Djallon highlands

Ray C. Schmidt, Megan N. Dillon, Natalie M. Kuhn, Henry L. Bart, more

Zoologica Scripta > 48 > 5 > 605 - 613

The Upper Guinean Forests of Guinea, Sierra Leone and Liberia contain high levels of freshwater biodiversity. The Guinean Range and associated Fouta Djallon highlands separate two biogeographical provinces in the region and served as a refugium during past climatic fluctuations. While many species of freshwater fishes are restricted to one biogeographical province or the other, some are reported to...

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Evolutionary insights into the North American Necturus beyeri complex (Amphibia: Caudata) based on molecular genetic and morphological analyses

Ryan E. Chabarria, Christopher M. Murray, Paul E. Moler, Henry L. Bart, more

Journal of Zoological Systematics and Evolutionary Research > 56 > 3 > 352 - 363

Necturus beyeri (Caudata: Proteidae), as conceived by some, contains paedomorphic salamanders distributed from the Ochlockonee drainage of Florida to the Angelina drainage of Texas. Because these salamanders differ in color pattern and karyotype across their geographic range, we performed a phylogeographic analysis that included representatives from all major drainages as well as of all congeners...

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Cranial morphology in Mollisquama sp. (Squaliformes; Dalatiidae) and patterns of cranial evolution in dalatiid sharks

John S. S. Denton, John G. Maisey, Mark Grace, Alan Pradel, more

Journal of Anatomy > 233 > 1 > 15 - 32

Dalatiid sharks are members of a family of predominantly small, midwater meso‐ and bathypelagic chondrichthyans. The family is notable for both its number of monotypic genera and high morphological disparity. Three of the seven dalatiid genera are known only from holotype specimens (Mollisquama parini) or from only a handful of specimens (Euprotomicroides zantedeschia, Heteroscymnoides marleyi), with...

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Multi-locus phylogeny reveals instances of mitochondrial introgression and unrecognized diversity in Kenyan barbs (Cyprininae: Smiliogastrini)

Ray C. Schmidt, Henry L. Bart, Wanja Dorothy Nyingi

Molecular Phylogenetics and Evolution > 2017 > 111 > C > 35-43

The phylogenetics and taxonomic status of small African barbs (Cyprininae: Smiliogastrini) remains unresolved despite the recent decision to elevate the genus name Enteromius for the group. The main barrier to understanding the origin of African small barbs and evolutionary relationships within the group is the poor resolution of phylogenies published to date. These phylogenies usually rely on mitochondrial...

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High levels of endemism in suckermouth catfishes (Mochokidae: Chiloglanis) from the Upper Guinean forests of West Africa

Ray C. Schmidt, Henry L. Bart, Frank Pezold

Molecular Phylogenetics and Evolution > 2016 > 100 > C > 199-205

Freshwater systems are under threat globally, yet the biodiversity in many areas is still unknown. This is especially true for the aquatic biodiversity of the Upper Guinean forests of Guinea, Sierra Leone, Liberia, and Côte d’Ivoire. Access to this area is largely restricted, though recent surveys by the authors are allowing us to reassess the area’s diversity. This area has vast mineral reserves...

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Nomenclatural changes should not be based on equivocally supported phylogenies: Reply to Yang et al. 2015

Ray C. Schmidt, Henry L. Bart

Molecular Phylogenetics and Evolution > 2015 > 90 > Complete > 193-194

Phylogenies produced by Yang et al. 2015 provide reasonably well-supported hypotheses of relationships among 11 proposed tribes of cyprinine fishes and present an interesting hypothesis about the origin of a number of polyploid cyprinine lineages. However, support for relationships within some of the tribes is equivocal. Herein we address the treatment of African diploid and tetraploid cyprinine genera...

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Phylogeny of suckermouth catfishes (Mochokidae: Chiloglanis) from Kenya: The utility of Growth Hormone introns in species level phylogenies

Ray C. Schmidt, Henry L. Bart, Dorothy Wanja Nyingi, Nathan Ndegwa Gichuki

Molecular Phylogenetics and Evolution > 2014 > 79 > C > 415-421

African suckermouth catfishes (Mochokidae: Chiloglanis) occur in freshwater throughout tropical Africa. Specimens from all major drainages across Kenya were collected over three field seasons. Here we present a phylogeny inferred from both mitochondrial cytochrome b (cyt b) and introns of the nuclear Growth Hormone gene (GH). The phylogeny inferred from introns is largely congruent with the results...

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A different perspective on the phylogenetic relationships of the Moxostomatini (Cypriniformes: Catostomidae) based on cytochrome-b and Growth Hormone intron sequences

Mark D. Clements, Henry L. Bart, David L. Hurley

Molecular Phylogenetics and Evolution > 2012 > 63 > 1 > 159-167

We have examined phylogenetic relationships of suckers of tribe Moxostomatini (Cypriniformes, Catostomidae) using cytochrome-b and Growth Hormone gene intron sequences. Phylogenies were significantly different from recent estimates of relationships based primarily on morphology (Smith, 1992) and cytochrome-b sequences (Harris et al., 2002). Overall, there was little support for many basal nodes in...

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Phylogeny of the gudgeons (Teleostei: Cyprinidae: Gobioninae)

Kevin L. Tang, Mary K. Agnew, Wei-Jen Chen, M. Vincent Hirt, more

Molecular Phylogenetics and Evolution > 2011 > 61 > 1 > 103-124

The members of the cyprinid subfamily Gobioninae, commonly called gudgeons, form one of the most well-established assemblages in the family Cyprinidae. The subfamily is a species-rich group of fishes, these fishes display diverse life histories, appearances, and behavior. The phylogenetic relationships of Gobioninae are examined using sequence data from four loci: cytochrome b, cytochrome c oxidase...

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Morphological variation of the palatal organ and chewing pad of catostomidae (Teleostei: Cypriniformes)

Michael H. Doosey, Henry L. Bart

Journal of Morphology > 272 > 9 > 1092 - 1108

We studied the morphology and shape variation of the palatal organ and chewing pad of sucker fishes, family Catostomidae. The palatal organ is a muscularized structure that forms a large mass on the roof of the posterior part of the buccopharyngeal cavity in cypriniform fishes. It functions in coordination with the branchial arches to separate food items from inorganic debris during feeding. The palatal...

article

Phylogenetic relationships of the North American cyprinid subgenus Hydrophlox

Mollie F. Cashner, Kyle R. Piller, Henry L. Bart

Molecular Phylogenetics and Evolution > 2011 > 59 > 3 > 725-735

Notropis is one of the largest genera of North American fishes and is composed of a number of morphologically diagnosed subgroups; however, the validity of many has not been tested in a phylogenetic framework. One such subgroup is the subgenus Hydrophlox, which is composed of brilliantly colored species that engage in the symbiotic reproductive behavior of nest association. Although they have long...

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Evidence from mitochondrial genomics supports the lower Mesozoic of South Asia as the time and place of basal divergence of cypriniform fishes (Actinopterygii: Ostariophysi)

KENJI SAITOH, TETSUYA SADO, MICHAEL H. DOOSEY, HENRY L. BART Jr, more

Zoological Journal of the Linnean Society > 161 > 3 > 633 - 662

We analysed mitochondrial genomic sequences under maximum likelihood (ML) criteria to explore phylogenetic relationships, and performed historical biogeography analysis with divergence time estimation for fishes of Order Cypriniformes (Actinopterygii: Ostariophysi). We added mitogenomes for eight new cypriniforms and one outgroup to a data set comprising 53 and six outgroup mitogenomes from a previous...

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Discordant molecular and morphological evolution in buffalofishes (Actinopterygii: Catostomidae)

Henry L. Bart, Mark D. Clements, Rebecca E. Blanton, Kyle R. Piller, more

Molecular Phylogenetics and Evolution > 2010 > 56 > 2 > 808-820

Buffalofishes (Genus Ictiobus) are large, robust-bodied suckers adapted to large rivers and lakes of North America. Currently recognized species are readily diagnosed by morphological characters, and the group is known from fossils dating back to the Miocene. However, sympatrically occurring species in the Mississippi River Basin are known to hybridize in nature and in the laboratory. Here we describe...

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Phylogenetic relationships of catostomid fishes (Actinopterygii: Cypriniformes) based on mitochondrial ND4/ND5 gene sequences

Michael H. Doosey, Henry L. Bart, Kenji Saitoh, Masaki Miya

Molecular Phylogenetics and Evolution > 2010 > 54 > 3 > 1028-1034

Family Catostomidae is a diverse group of benthic freshwater fishes that are distributed across North America and in parts of East Asia. In this study, the phylogenetic relationships of Catostomidae is examined using 3436 nucleotides of mitochondrial ND4 and ND5 protein coding genes and intervening tRNAs. All 13 genera and 60 species of catostomids were sampled to represent diversity of the family...

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Joint feature selection and classification for taxonomic problems within fish species complexes

Yixin Chen, Shuqing Huang, Huimin Chen, Henry L. Bart

Pattern Analysis and Applications > 2010 > 13 > 1 > 23-34

It is estimated that 90% of the world’s species are yet to be discovered and described. The main reason for the slow pace of new species description is that the science of taxonomy can be very laborious. To formally describe a new species, taxonomists have to manually gather and analyze data from large numbers of specimens and identify the smallest subset of external body characters that uniquely...

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Incomplete sampling, outgroups, and phylogenetic inaccuracy: A case study of the Greenside Darter complex (Percidae: Etheostoma blennioides)

Kyle R. Piller, Henry L. Bart

Molecular Phylogenetics and Evolution > 2009 > 53 > 1 > 340-344

article

Reconstructing the phylogenetic relationships of the earth’s most diverse clade of freshwater fishes—order Cypriniformes (Actinopterygii: Ostariophysi): A case study using multiple nuclear loci and the mitochondrial genome

Richard L. Mayden, Wei-Jen Chen, Henry L. Bart, Michael H. Doosey, more

Molecular Phylogenetics and Evolution > 2009 > 51 > 3 > 500-514

The order Cypriniformes is the most diverse clade of freshwater fishes and is natively distributed on all continents except South America, Australia, and Antarctica. Despite the diversity of the group and the fundamental importance of these species in both ecosystems and human culture, relatively little has been known about their relationships relative to their diversity. In recent years, with an...

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Phylogeography of the greenside darter complex, Etheostoma blennioides (Teleostomi: Percidae): A wide-ranging polytypic taxon

Kyle R. Piller, Henry L. Bart, David L. Hurley

Molecular Phylogenetics and Evolution > 2008 > 46 > 3 > 974-985

The greenside darter, Etheostoma blennioides (Teleostomi: Percidae), is a wide-ranging polytypic taxon that occurs throughout eastern North America. A previous morphological study recognized four subspecies (blennioides, newmanii, gutselli, and pholidotum), several morphological races, and three zones of morphological intergradation. We generated complete cytochrome b (1140bp) sequence data for 51...

article

Bayesian estimation of kinetic rate constants in a food-web model of polycyclic aromatic hydrocarbon bioaccumulation

Karen H. Watanabe, Hsin-I. Lin, Henry L. Bart, Peter Martinat, more

Ecological Modelling > 2005 > 181 > 2-3 > 229-246

Water, sediments, fish and other biota were sampled from fixed stations along bayous in the LaBranche Wetlands of Louisiana as part of an environmental contamination study in 1996 and 1997. In order to understand the biological fate of some of these contaminants, a spotted gar (Lepisosteus oculatus) food-web model was developed from site-specific data and established bioaccumulation modeling assumptions...

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Search results for: Henry L. Bart

Species of the cyprinid genus Garra in Mount Kenya, East Africa: Species delineation, taxonomy and historical biogeography

Unrecognized and imperilled diversity in an endemic barb (Smiliogastrini, Enteromius) from the Fouta Djallon highlands

Evolutionary insights into the North American Necturus beyeri complex (Amphibia: Caudata) based on molecular genetic and morphological analyses

Cranial morphology in Mollisquama sp. (Squaliformes; Dalatiidae) and patterns of cranial evolution in dalatiid sharks

Multi-locus phylogeny reveals instances of mitochondrial introgression and unrecognized diversity in Kenyan barbs (Cyprininae: Smiliogastrini)

High levels of endemism in suckermouth catfishes (Mochokidae: Chiloglanis) from the Upper Guinean forests of West Africa

Nomenclatural changes should not be based on equivocally supported phylogenies: Reply to Yang et al. 2015

Phylogeny of suckermouth catfishes (Mochokidae: Chiloglanis) from Kenya: The utility of Growth Hormone introns in species level phylogenies

A different perspective on the phylogenetic relationships of the Moxostomatini (Cypriniformes: Catostomidae) based on cytochrome-b and Growth Hormone intron sequences

Phylogeny of the gudgeons (Teleostei: Cyprinidae: Gobioninae)

Morphological variation of the palatal organ and chewing pad of catostomidae (Teleostei: Cypriniformes)

Phylogenetic relationships of the North American cyprinid subgenus Hydrophlox

Evidence from mitochondrial genomics supports the lower Mesozoic of South Asia as the time and place of basal divergence of cypriniform fishes (Actinopterygii: Ostariophysi)

Discordant molecular and morphological evolution in buffalofishes (Actinopterygii: Catostomidae)

Phylogenetic relationships of catostomid fishes (Actinopterygii: Cypriniformes) based on mitochondrial ND4/ND5 gene sequences

Joint feature selection and classification for taxonomic problems within fish species complexes

Incomplete sampling, outgroups, and phylogenetic inaccuracy: A case study of the Greenside Darter complex (Percidae: Etheostoma blennioides)

Reconstructing the phylogenetic relationships of the earth’s most diverse clade of freshwater fishes—order Cypriniformes (Actinopterygii: Ostariophysi): A case study using multiple nuclear loci and the mitochondrial genome

Phylogeography of the greenside darter complex, Etheostoma blennioides (Teleostomi: Percidae): A wide-ranging polytypic taxon

Bayesian estimation of kinetic rate constants in a food-web model of polycyclic aromatic hydrocarbon bioaccumulation

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