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Falniowski A, Jaszczyńska A, Osikowski A, Hofman S. Litthabitellidae: a new family of the Truncatelloidea (Mollusca: Caenogastropoda). J NAT HIST 2023. [DOI: 10.1080/00222933.2023.2168573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Andrzej Falniowski
- Department of Malacology, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, Poland
| | - Aleksandra Jaszczyńska
- Department of Malacology, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, Poland
- Department of Invertebrate Evolution, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, Poland
| | - Artur Osikowski
- Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Kraków, Kraków, Poland
| | - Sebastian Hofman
- Department of Comparative Anatomy, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, Poland
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Hofman S, Grego J, Beran L, Jaszczyńska A, Osikowski A, Falniowski A. Kerkia Radoman, 1978 (Caenogastropoda: Hydrobiidae): endemism, apparently morphostatic evolution and cryptic speciation. MOLLUSCAN RESEARCH 2022. [DOI: 10.1080/13235818.2022.2129943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sebastian Hofman
- Department of Comparative Anatomy, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, Poland
| | | | - Luboš Beran
- Regional Office Kokořínsko – Máchův kraj Protected Landscape Area Administration, Mělník, Czech Republic
| | - Aleksandra Jaszczyńska
- Department of Malacology, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, Poland
| | - Artur Osikowski
- Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Krakow, Kraków, Poland
| | - Andrzej Falniowski
- Department of Malacology, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, Poland
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Simone LRL, Salvador RB. A new species of Spiripockia from eastern Brazil and reassignment to Cochliopidae (Gastropoda: Truncatelloidea). J NAT HIST 2021. [DOI: 10.1080/00222933.2021.1890850] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Dumidae A, Janthu P, Subkrasae C, Pumidonming W, Dekumyoy P, Thanwisai A, Vitta A. Genetic analysis of Cryptozona siamensis (Stylommatophora, Ariophantidae) populations in Thailand using the mitochondrial 16S rRNA and COI sequences. PLoS One 2020; 15:e0239264. [PMID: 32925984 PMCID: PMC7489551 DOI: 10.1371/journal.pone.0239264] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 09/02/2020] [Indexed: 11/19/2022] Open
Abstract
Cryptozona siamensis, one of the most widespread land snails, is native to Thailand, and plays a key role as an agricultural pest and intermediate host for Angiostrongylus spp. However, its genetic diversity and population structure has not yet been investigated, and are poorly understood. Therefore, a genetic analysis of the C. siamensis population in Thailand was conducted, based mitochondrial 16S rRNA (402 bp) and COI (602 bp) gene fragment sequences. Cryptozona siamensis randomly collected from 17 locations in four populations across Thailand, between May 2017 and July 2018. Fifty-eight snails were used to examine the phylogeny, genetic diversity, and genetic structure. The maximum likelihood tree based on the 16S rRNA and COI fragment sequences revealed two main clades. A total of 14 haplotypes with 44 nucleotide variable sites were found in the 16S rRNA sequences, while 14 haplotypes with 57 nucleotide variable sites were found in the COI sequences. The genetic diversity of C. siamensis in term of the number of haplotypes and haplotype diversity, was found to be high but the nucleotide diversity showed low levels of genetic differentiation for the COI sequence as also noted with the 16S rRNA sequence. The population genetic structure of C. siamensis revealed genetic difference in most populations in Thailand. However, low genetic difference in some populations may be due to high gene flow. This study provides novel insights into the basic molecular genetics of C. siamensis.
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Affiliation(s)
- Abdulhakam Dumidae
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Pichamon Janthu
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Chanakan Subkrasae
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Wilawan Pumidonming
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Paron Dekumyoy
- Department of Helminthology, Faculty of Tropical Medicine, Mahidol University, Ratchathewi, Bangkok, Thailand
| | - Aunchalee Thanwisai
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
- Centre of Excellence in Medical Biotechnology (CEMB), Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
- Center of Excellence for Biodiversity, Faculty of Sciences, Naresuan University, Phitsanulok, Thailand
| | - Apichat Vitta
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
- Centre of Excellence in Medical Biotechnology (CEMB), Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
- Center of Excellence for Biodiversity, Faculty of Sciences, Naresuan University, Phitsanulok, Thailand
- * E-mail:
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Bouchet P, Rocroi JP, Hausdorf B, Kaim A, Kano Y, Nützel A, Parkhaev P, Schrödl M, Strong EE. Revised Classification, Nomenclator and Typification of Gastropod and Monoplacophoran Families. MALACOLOGIA 2017. [DOI: 10.4002/040.061.0201] [Citation(s) in RCA: 303] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Philippe Bouchet
- Institut de Systématique, Evolution, Biodiversité ISYEB — UMR7205 — CNRS, MNHN, UPMC, EPHE Muséum National d'Histoire Naturelle Sorbonne Universités, 55 Rue Buffon, F-75231 Paris, France;
| | - Jean-Pierre Rocroi
- Institut de Systématique, Evolution, Biodiversité ISYEB — UMR7205 — CNRS, MNHN, UPMC, EPHE Muséum National d'Histoire Naturelle Sorbonne Universités, 55 Rue Buffon, F-75231 Paris, France;
| | - Bernhard Hausdorf
- Zoological Museum, Center of Natural History, Universität Hamburg, Germany
| | - Andrzej Kaim
- Institute of Paleobiology, Polish Academy of Sciences, Warszawa, Poland
| | - Yasunori Kano
- Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba, Japan
| | - Alexander Nützel
- Bavarian State Collection of Palaeontology and Geology, Faculty of Earth Sciences and GeoBio-Center LMU, München, Germany
| | - Pavel Parkhaev
- Borissiak Paleontological Institute, Russian Academy of Sciences, Moscow, Russia
| | - Michael Schrödl
- Bavarian State Collection of Zoology, Faculty of Biology and GeoBio-Center LMU, München, Germany
| | - Ellen E. Strong
- National Museum of Natural History, Smithsonian Institution, Washington D.C., U.S.A
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Liu HP, Hovingh P, Hershler R. Genetic Evidence for Recent Spread of Springsnails (Hydrobiidae:Pyrgulopsis) across the Wasatch Divide. WEST N AM NATURALIST 2015. [DOI: 10.3398/064.075.0309] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Hershler R, Liu HP, Simpson JS. Assembly of a micro-hotspot of caenogastropod endemism in the southern Nevada desert, with a description of a new species of Tryonia (Truncatelloidea, Cochliopidae). Zookeys 2015:107-22. [PMID: 25878543 PMCID: PMC4389216 DOI: 10.3897/zookeys.492.9246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 03/16/2015] [Indexed: 11/12/2022] Open
Abstract
Newly obtained and previously published sequences of the cytochrome c oxidase subunit I (COI) gene were analyzed to examine the biogeographic assembly of the caenogastropod fauna (belonging to the families Assimineidae, Cochliopidae, and Hydrobiidae) of an isolated spring along the lower Colorado River in southern Nevada (Blue Point Spring). Based on available COI clock calibrations, the three lineages that comprise this fauna are 2.78–1.42 million years old, which is roughly coeval or slightly younger than the age of Blue Point Spring (inferred from local fossil spring deposits). Two of the lineages—endemic Pyrgulopsiscoloradensis and Assimineaaff.infima—are most closely related to snails in the Death Valley area (well to the west) and likely colonized Blue Point Spring by transport on birds. A single haplotype was detected in both of these snails, suggesting that they may have only recently colonized Blue Point Spring. The third lineage—endemic Tryoniainfernalis, newly described herein based on morphological and molecular evidence—is most closely related to a geographically proximal species in a lower Colorado River tributary (Tryoniaclathrata); the split between these taxa may be the product of vicariance (severance of a prior drainage connection) or a separate jump dispersal event. The considerable genetic diversity in Tryoniainfernalis (three haplotypes differing by 0.6% mean sequence divergence) suggests a possibly lengthy history of local differentiation. Our findings also identify Blue Point Spring as a new micro-hotspot of groundwater-dependent biodiversity in Nevada and will assist ongoing efforts to protect and conserve these imperiled ecosystems.
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Affiliation(s)
- Robert Hershler
- Department of Invertebrate Zoology, Smithsonian Institution, P.O. Box 37012, Washington, DC 20013-7012, USA
| | - Hsiu-Ping Liu
- Department of Biology, Metropolitan State University of Denver, Denver, CO 80217, USA
| | - Jeffrey S Simpson
- Department of Biology, Metropolitan State University of Denver, Denver, CO 80217, USA
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Koch E, Martin SM, Ciocco NF. A molecular contribution to the controversial taxonomical status of some freshwater snails (Caenogastropoda: Rissooidea, Cochliopidae) from the Central Andes desert to Patagonia. IHERINGIA. SERIE ZOOLOGIA 2015. [DOI: 10.1590/1678-4766201510516975] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
For over 40 years malacologists have been discussing the taxonomical status of Heleobia species, an enigmatic genus from Cochliopidae family (Caenogastropoda: Rissooidea). As with other rissooidean families, the considerable character convergence and the paucity of anatomical synapomorphies has proved to be a problem in resolving cochliopid phylogenetic relations and establishing the validity of several nominal cochliopid species. Here we present a molecular contribution to solve the taxonomical status of one of the most abundant Southern South America cochliopid genera which has many endemic species. We report molecular evidence that supports three of the four Heleobia groups described for this region, the "australis", "parchappii" and "piscium" groups. The fourth, the "hatcheri" group, belongs not to Heleobia but to a different genus which itself should not be considered as part of the family Cochliopidae but closely related to genus Potamolithus Pilsbry & Rush, 1896.
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Affiliation(s)
- Eduardo Koch
- Instituto Argentino de Investigaciones de las Zonas Aridas, Argentina; Universidad Nacional de Cuyo, Argentina
| | - Stella M. Martin
- Comisión de Investigación Científicas de la Provincia de Buenos Aires, Argentina
| | - Nestor F. Ciocco
- Instituto Argentino de Investigaciones de las Zonas Aridas, Argentina; Universidad Nacional de Cuyo, Argentina
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Wilke T, Haase M, Hershler R, Liu HP, Misof B, Ponder W. Pushing short DNA fragments to the limit: Phylogenetic relationships of ‘hydrobioid’ gastropods (Caenogastropoda: Rissooidea). Mol Phylogenet Evol 2013; 66:715-36. [DOI: 10.1016/j.ympev.2012.10.025] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 10/18/2012] [Accepted: 10/29/2012] [Indexed: 10/27/2022]
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Kroll O, Hershler R, Albrecht C, Terrazas EM, Apaza R, Fuentealba C, Wolff C, Wilke T. The endemic gastropod fauna of Lake Titicaca: correlation between molecular evolution and hydrographic history. Ecol Evol 2012; 2:1517-30. [PMID: 22957159 PMCID: PMC3434920 DOI: 10.1002/ece3.280] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Revised: 04/19/2012] [Accepted: 04/23/2012] [Indexed: 12/02/2022] Open
Abstract
Lake Titicaca, situated in the Altiplano high plateau, is the only ancient lake in South America. This 2- to 3-My-old (where My is million years) water body has had a complex history that included at least five major hydrological phases during the Pleistocene. It is generally assumed that these physical events helped shape the evolutionary history of the lake's biota. Herein, we study an endemic species assemblage in Lake Titicaca, composed of members of the microgastropod genus Heleobia, to determine whether the lake has functioned as a reservoir of relic species or the site of local diversification, to evaluate congruence of the regional paleohydrology and the evolutionary history of this assemblage, and to assess whether the geographic distributions of endemic lineages are hierarchical. Our phylogenetic analyses indicate that the Titicaca/Altiplano Heleobia fauna (together with few extralimital taxa) forms a species flock. A molecular clock analysis suggests that the most recent common ancestor (MRCAs) of the Altiplano taxa evolved 0.53 (0.28–0.80) My ago and the MRCAs of the Altiplano taxa and their extralimital sister group 0.92 (0.46–1.52) My ago. The endemic species of Lake Titicaca are younger than the lake itself, implying primarily intralacustrine speciation. Moreover, the timing of evolutionary branching events and the ages of two precursors of Lake Titicaca, lakes Cabana and Ballivián, is congruent. Although Lake Titicaca appears to have been the principal site of speciation for the regional Heleobia fauna, the contemporary spatial patterns of endemism have been masked by immigration and/or emigration events of local riverine taxa, which we attribute to the unstable hydrographic history of the Altiplano. Thus, a hierarchical distribution of endemism is not evident, but instead there is a single genetic break between two regional clades. We also discuss our findings in relation to studies of other regional biota and suggest that salinity tolerance was the most likely limiting factor in the evolution of Altiplano species flocks.
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Species distinctness of <i>Lithoglyphus prasinus</i> (Küster, 1852) (Rissooidea: Caenogastropoda). FOLIA MALACOLOGICA 2012. [DOI: 10.2478/v10125-012-0019-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Chaves-Campos J, Johnson SG, Hulsey CD. Spatial geographic mosaic in an aquatic predator-prey network. PLoS One 2011; 6:e22472. [PMID: 21799865 PMCID: PMC3140530 DOI: 10.1371/journal.pone.0022472] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Accepted: 06/28/2011] [Indexed: 11/26/2022] Open
Abstract
The geographic mosaic theory of coevolution predicts 1) spatial variation in predatory structures as well as prey defensive traits, and 2) trait matching in some areas and trait mismatching in others mediated by gene flow. We examined gene flow and documented spatial variation in crushing resistance in the freshwater snails Mexipyrgus churinceanus, Mexithauma quadripaludium, Nymphophilus minckleyi, and its relationship to the relative frequency of the crushing morphotype in the trophically polymorphic fish Herichthys minckleyi. Crushing resistance and the frequency of the crushing morphotype did show spatial variation among 11 naturally replicated communities in the Cuatro Ciénegas valley in Mexico where these species are all endemic. The variation in crushing resistance among populations was not explained by geographic proximity or by genetic similarity in any species. We detected clear phylogeographic patterns and limited gene flow for the snails but not for the fish. Gene flow among snail populations in Cuatro Ciénegas could explain the mosaic of local divergence in shell strength and be preventing the fixation of the crushing morphotype in Herichthys minckleyi. Finally, consistent with trait matching across the mosaic, the frequency of the fish morphotype was negatively correlated with shell crushing resistance likely reflecting the relative disadvantage of the crushing morphotype in communities where the snails exhibit relatively high crushing resistance.
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Affiliation(s)
- Johel Chaves-Campos
- Department of Biological Sciences, University of New Orleans, New Orleans, Louisiana, United States of America
| | - Steven G. Johnson
- Department of Biological Sciences, University of New Orleans, New Orleans, Louisiana, United States of America
- * E-mail:
| | - C. Darrin Hulsey
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, United States of America
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Hershler R, Liu HP. Redescription of Marstonia comalensis (Pilsbry & Ferriss, 1906), a poorly known and possibly threatened freshwater gastropod from the Edwards Plateau region (Texas). Zookeys 2011:1-16. [PMID: 21594148 PMCID: PMC3088054 DOI: 10.3897/zookeys.77.935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Accepted: 01/13/2011] [Indexed: 11/12/2022] Open
Abstract
Marstonia comalensis, a poorly known nymphophiline gastropod (originally described from Comal Creek, Texas) that has often been confused with Cincinnatia integra, is re-described and the generic placement of this species, which was recently allocated to Marstonia based on unpublished evidence, is confirmed by anatomical study. Marstonia comalensis is a large congener having an ovate-conic, openly umbilicate shell and penis having a short filament and oblique, squarish lobe bearing a narrow gland along its distal edge. It is well differentiated morphologically from congeners having similar shells and penes and is also genetically divergent relative to those congeners that have been sequenced (mtCOI divergence 3.0–8.5%). A Bayesian analysis of a small COI dataset resolved Marstonia comalensis in a poorly supported sub-clade together with Marstonia hershleri, Marstonia lustrica and Marstonia pachyta. The predominantly new records presented herein indicate that Marstonia comalensis was historically distributed in the upper portions of the Brazos, Colorado, Guadalupe and Nueces River basins, south-central Texas. The species has been live collected at only 12 localities and only two of these have been re-visited since 1993. These data suggest that the conservation status of this snail, which has a critically imperiled (G1) NatureServe ranking and was recently proposed for federal listing, needs to be re-assessed.
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Brown KM, Lang B, Perez KE. The conservation ecology of North American pleurocerid and hydrobiid gastropods. ACTA ACUST UNITED AC 2008. [DOI: 10.1899/07-062.1] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kenneth M. Brown
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana 70803 USA
| | - Brian Lang
- New Mexico Department of Game and Fish, One Wildlife Way, Santa Fe, New Mexico 87507 USA
| | - Kathryn E. Perez
- University of North Carolina at Chapel Hill and Department of Biology, Duke University, Durham, North Carolina 27708 USA
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Liu HP, Hershler R. Molecular systematics and radiation of western North American nymphophiline gastropods. Mol Phylogenet Evol 2004; 34:284-98. [PMID: 15619442 DOI: 10.1016/j.ympev.2004.09.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2004] [Revised: 09/01/2004] [Accepted: 09/14/2004] [Indexed: 10/26/2022]
Abstract
Three mitochondrial DNA (mtDNA) markers were used to infer the phylogenetic relationships of the morphologically diverse, species rich, and poorly understood western North American aquatic gastropod genus Pyrgulopsis (Hydrobiidae: Nymphophilinae). Sequences were obtained from 62 of 124 currently recognized species of Pyrgulopsis and representatives of four related genera of North American nymphophilines. Separate and combined analyses of the mtDNA datasets recovered a well supported clade composed of Pyrgulopsis and two other North American nymphophiline genera (Floridobia, Nymphophilus) consistent with the results of a prior study based on a single gene and with anatomical evidence suggesting that these taxa form a monophyletic group. Phylogenetic relationships among lineages of Pyrgulopsis were little resolved in our analyses and provided no obvious basis for splitting this large genus into multiple genera. The little differentiated Mexican genus Nymphophilus was consistently placed within Pyrgulopsis in our trees and is formally synonymized with it herein. Pyrgulopsis was also depicted as paraphyletic with respect to Floridobia in some of our trees while in others the latter was sister to a Nymphophilus + Pyrgulopsis clade. Based on these equivocal results and the morphological and geographical divergence of eastern North American Floridobia relative to Pyrgulopsis, we recommend that the former be maintained as a separate genus. The short, weakly supported branches within Pyrgulopsis and the noncongruence between our molecular phylogenetic hypotheses and geographical groupings of species are attributed to an early rapid diversification of the genus, perhaps triggered by the complex changes in western topography which occurred during the late Tertiary. Our results also indicate that penial morphologies used to define species groups of Pyrgulopsis have been subject to striking convergence throughout the West, suggesting another compelling facet of the radiation of these snails.
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Affiliation(s)
- Hsiu-Ping Liu
- Department of Biological Sciences, University of Denver, Denver, CO 80208, USA
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Liu HP, Hershler R, Clift K. Mitochondrial DNA sequences reveal extensive cryptic diversity within a western American springsnail. Mol Ecol 2003; 12:2771-82. [PMID: 12969479 DOI: 10.1046/j.1365-294x.2003.01949.x] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We analysed cytochrome c oxidase subunit I and NADH dehydrogenase subunit I sequence variation among 29 populations of a widely ranging southwestern springsnail (Pyrgulopsis micrococcus) and 18 regional congeners. Cladistic analyses of these sequences depict P. micrococcus as a polyphyletic composite of five well-supported clades. Sequence divergences among these clades and subclades imply the possible occurrence of as many as seven or eight cryptic species in addition to P. micrococcus. Our finding that P. micrococcus contains multiple, genetically distinct and geographically restricted lineages suggests that diversification within this highly speciose aquatic genus has been structured in large part by the operation of terrestrial barriers to gene flow. However, these sequence data also indicate that recent dispersal among hydrographically separated areas has occurred within one of these lineages, which we attribute to passive transport on migratory waterbirds.
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Affiliation(s)
- Hsiu-Ping Liu
- Department of Biological Sciences, University of Denver, Denver, CO 80208, USA
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Hershler R, Liu HP, Thompson FG. Phylogenetic relationships of North American nymphophiline gastropods based on mitochondrial DNA sequences. ZOOL SCR 2003. [DOI: 10.1046/j.1463-6409.2003.00115.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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