Context-Dependent Consequences of Color Biases in a Social Fish
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Phylogeny of a Rapidly Evolving Clade: the Cichlid Fishes of Lake Malawi
Proc. Natl. Acad. Sci. USA Vol. 96, pp. 5107–5110, April 1999 Evolution Phylogeny of a rapidly evolving clade: The cichlid fishes of Lake Malawi, East Africa (adaptive radiationysexual selectionyspeciationyamplified fragment length polymorphismylineage sorting) R. C. ALBERTSON,J.A.MARKERT,P.D.DANLEY, AND T. D. KOCHER† Department of Zoology and Program in Genetics, University of New Hampshire, Durham, NH 03824 Communicated by John C. Avise, University of Georgia, Athens, GA, March 12, 1999 (received for review December 17, 1998) ABSTRACT Lake Malawi contains a flock of >500 spe- sponsible for speciation, then we expect that sister taxa will cies of cichlid fish that have evolved from a common ancestor frequently differ in color pattern but not morphology. within the last million years. The rapid diversification of this Most attempts to determine the relationships among cichlid group has been attributed to morphological adaptation and to species have used morphological characters, which may be sexual selection, but the relative timing and importance of prone to convergence (8). Molecular sequences normally these mechanisms is not known. A phylogeny of the group provide the independent estimate of phylogeny needed to infer would help identify the role each mechanism has played in the evolutionary mechanisms. The Lake Malawi cichlids, however, evolution of the flock. Previous attempts to reconstruct the are speciating faster than alleles can become fixed within a relationships among these taxa using molecular methods have species (9, 10). The coalescence of mtDNA haplotypes found been frustrated by the persistence of ancestral polymorphisms within populations predates the origin of many species (11). In within species. -
Effects of Increased Temperature And
EFFECTS OF INCREASED TEMPERATURE AND DECREASED FOOD QUALITY ON METABOLISM AND GROWTH OF AN ALGIVOROUS CICHLID, TROPHEUS DUBOISI, AND EFFECT OF FOOD HABIT ON THE FIELD METABOLISM OF AFRICAN CICHLIDS A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science By LESLEY YU-JUNG KIM B.S., The Ohio State University, 2011 2014 Wright State University WRIGHT STATE UNIVERSITY GRADUATE SCHOOL September 2, 2014 I HEREBY RECOMMEND THAT THE THESIS PREPARED UNDER MY SUPERVISION BY Lesley Yu-Jung Kim ENTITLED Effect of Increased Temperature and Decreased Food Quality on Metabolism and Growth of an Algivorous cichlid, Tropheus duboisi, and Effect of Food Habit on the Field Metabolism of African Cichlids BE ACCEPTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Master of Science. __________________________ Yvonne Vadeboncoeur, Ph.D. Thesis Director __________________________ David Goldstein, Ph.D. Chair, Department of Biological Sciences Committee on Final Examination __________________________ Yvonne Vadeboncoeur, Ph.D. __________________________ Lynn Hartzler, Ph.D. __________________________ Volker Bahn, Ph.D. __________________________ Robert E. W. Fyffe, Ph.D. Vice President for Research and Dean of the Graduate School ABSTRACT Kim, Lesley Yu-Jung. M.S. Department of Biological Sciences, Wright State University, 2014. Effect of increased temperature and decreased food quality on metabolism and growth of an algivorous cichlid, Tropheus duboisi, and effect of food habit on the field metabolism of African Cichlids. The metabolic rate of an organism is influenced by mass, temperature, and diet. Climate change is anticipated to increase ambient temperatures of aquatic systems and decrease the quality of food available to algivorous fish. -
Neolamprologus Brichardi, a Singular Tanganyika Cichlid Text & Photos: José María Cid Ruiz
Neolamprologus brichardi, a singular Tanganyika cichlid Text & Photos: José María Cid Ruiz This species of attractive appearance and unique parental behavior, is one of the many endemic species that make the Lake Tanganyika (East Africa, originated 3-7 million years ago), a unique ecosystem with excep- tional biodiversity, such as is credited by 250 cichlid species and other 150 fish species from different families that inhabit its waters. As is well known, Neolamprologus brichardi1 (Poll,1974), was initially descri- bed as a subspecies of Lamprologus savoryi (L.savoryi elongatus) (Trewavas & Poll, 1952). The species has a laterally compressed body, which together with its long caudal in the form of "lyre", conveys an impression of great slender- ness. It's really a beautiful cichlid, with a uniform beige color on which stands out a peculiar drawing behind and below the eye, consisting of two black spots and a third spot in yellow-orange. It also highlights a metallic blue iridescence under the eye and at the edge of the fins. In the literature it is cited with sizes Averaging the various references consulted, we would consider a temperature in up to 10 cm, but generally, more developed adult males do not exceed the 8-9 shallow waters of 25-26 ° C. The pH in the majority of sample points has a value cm and females always measure something less. of 8.4 but there are areas with measurements of 9.2. Total hardness is moved in a range of GH: 7-11°d, while carbonate hardness ranges KH: 15 to 18°d. -
Testing the Potential of Environmental DNA Methods for Surveying Lake Tanganyika's Highly Diverse Fish Communities Christopher J
Testing the potential of environmental DNA methods for surveying Lake Tanganyika's highly diverse fish communities Christopher James Doble A thesis submitted for the degree of Doctor of Philosophy Department of Genetics, Evolution and Environment University College London April 2020 1 Declaration I, Christopher James Doble, confirm the work presented in this thesis is my own. Where information has been derived from other sources, I confirm this has been indicated in the thesis. Christopher James Doble Date: 27/04/2020 2 Statement of authorship I planned and undertook fieldwork to the Kigoma region of Lake Tanganyika, Tanzania in 2016 and 2017. This included obtaining research permits, collecting environmental DNA samples and undertaking fish community visual survey data used in Chapters three and four. For Chapter two, cichlid reference database sequences were sequenced by Walter Salzburger’s research group at the University of Basel. I extracted required regions from mitochondrial genome alignments during a visit to Walter’s research group. Other reference sequences were obtained by Sanger sequencing. I undertook the DNA extractions and PCR amplifications for all samples, with the clean-up and sequencing undertaken by the UCL Sequencing facility. I undertook the method development, DNA extractions, PCR amplifications and library preparations for each of the next generation sequencing runs in Chapters three and four at the NERC Biomolecular Analysis Facility Sheffield. Following training by Helen Hipperson at the NERC Biomolecular Analysis Facility in Sheffield, I undertook the bioinformatic analysis of sequence data in Chapters three and four. I also carried out all the data analysis within each chapter. Chapters two, three and parts of four have formed a manuscript recently published in Environmental DNA (Doble et al. -
BMC Evolutionary Biology Biomed Central
BMC Evolutionary Biology BioMed Central Research article Open Access Mitogenomic evaluation of the historical biogeography of cichlids toward reliable dating of teleostean divergences Yoichiro Azuma1, Yoshinori Kumazawa*2,3, Masaki Miya4, Kohji Mabuchi1 and Mutsumi Nishida1 Address: 1Ocean Research Institute, The University of Tokyo, 1-15-1 Minamidai, Nakano-ku, Tokyo 164-8639, Japan, 2Division of Material Science and Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan, 3Department of Information and Biological Sciences, Graduate School of Natural Sciences, Nagoya City University, 1 Yamanohata, Mizuho-cho, Mizuho-ku, Nagoya 467-8501, Japan and 4Department of Zoology, Natural History Museum and Institute, Chiba, 955-2 Aoba-cho, Chuo-ku, Chiba 260-8682, Japan Email: Yoichiro Azuma - [email protected]; Yoshinori Kumazawa* - [email protected]; Masaki Miya - [email protected]; Kohji Mabuchi - [email protected]; Mutsumi Nishida - [email protected] * Corresponding author Published: 23 July 2008 Received: 18 March 2008 Accepted: 23 July 2008 BMC Evolutionary Biology 2008, 8:215 doi:10.1186/1471-2148-8-215 This article is available from: http://www.biomedcentral.com/1471-2148/8/215 © 2008 Azuma et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Background: Recent advances in DNA sequencing and computation offer the opportunity for reliable estimates of divergence times between organisms based on molecular data. -
Cichlids As a Model for the Evolution of Visual Sensitivity Tyrone Clifford Spady University of New Hampshire, Durham
University of New Hampshire University of New Hampshire Scholars' Repository Doctoral Dissertations Student Scholarship Spring 2006 Cichlids as a model for the evolution of visual sensitivity Tyrone Clifford Spady University of New Hampshire, Durham Follow this and additional works at: https://scholars.unh.edu/dissertation Recommended Citation Spady, Tyrone Clifford, "Cichlids as a model for the evolution of visual sensitivity" (2006). Doctoral Dissertations. 331. https://scholars.unh.edu/dissertation/331 This Dissertation is brought to you for free and open access by the Student Scholarship at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact [email protected]. CICHLIDS AS A MODEL FOR THE EVOLUTION OF VISUAL SENSITIVITY BY TYRONE CLIFFORD SPADY B.S., University of Maryland Baltimore County, 2000 DISSERTATION Submitted to the University of New Hampshire In Partial Fulfillment of the Requirements for the Defense of Doctor of Philosophy in Zoology May, 2006 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. UMI Number: 3217442 INFORMATION TO USERS The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleed-through, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. -
Evolutionary History of the Lake Tanganyika Cichlid Tribe Lamprologini (Teleostei: Perciformes) Derived from Mitochondrial and Nuclear DNA Data
Molecular Phylogenetics and Evolution 57 (2010) 266–284 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Evolutionary history of the Lake Tanganyika cichlid tribe Lamprologini (Teleostei: Perciformes) derived from mitochondrial and nuclear DNA data Christian Sturmbauer a,*, Walter Salzburger b, Nina Duftner a, Robert Schelly c, Stephan Koblmüller a a Department of Zoology, University of Graz, Universitätsplatz 2, A-8010 Graz, Austria b Zoological Institute, Evolutionary Biology, University of Basel, Vesalgasse 1, CH-4051 Basel, Switzerland c Division of Vertebrate Zoology (Ichthyology), American Museum of Natural History, Central Park West at 79th Street, NY 10024, USA article info abstract Article history: Lake Tanganyika comprises a cichlid species flock with substrate-breeding and mouthbrooding lineages. Received 19 January 2010 While sexual selection via mate choice on male mating color is thought to boost speciation rates in Revised 14 June 2010 mouthbrooding cichlids, this is not the case in substrate-breeding lamprologines, which mostly form sta- Accepted 23 June 2010 ble pairs and lack sexual dichromatism. We present a comprehensive reconstruction of the evolution of Available online 3 July 2010 the cichlid tribe Lamprologini, based upon mtDNA sequences and multilocus nuclear DNA (AFLP) mark- ers. Twelve mtDNA clades were identified, seven of which were corroborated by the AFLP tree. The radi- Keywords: ation is likely to have started about 5.3 MYA, contemporarily with that of the mouthbrooding C-lineage, Molecular phylogeny and probably triggered by the onset of deep-water conditions in Lake Tanganyika. Neither the Congo- nor Speciation Hybridization the Malagarazi River species form the most ancestral branch. -
The Taxonomic Diversity of the Cichlid Fish Fauna of Ancient Lake
JGLR-01482; No. of pages: 12; 4C: Journal of Great Lakes Research xxx (xxxx) xxx Contents lists available at ScienceDirect Journal of Great Lakes Research journal homepage: www.elsevier.com/locate/jglr Review The taxonomic diversity of the cichlid fish fauna of ancient Lake Tanganyika, East Africa Fabrizia Ronco ⁎, Heinz H. Büscher, Adrian Indermaur, Walter Salzburger Zoological Institute, University of Basel, Vesalgasse 1, 4051 Basel, Switzerland article info abstract Article history: Ancient Lake Tanganyika in East Africa houses the world's ecologically and morphologically most diverse assem- Received 29 January 2019 blage of cichlid fishes, and the third most species-rich after lakes Malawi and Victoria. Despite long-lasting scien- 10 April 2019 tific interest in the cichlid species flocks of the East African Great Lakes, for example in the context of adaptive Accepted 29 April 2019 radiation and explosive diversification, their taxonomy and systematics are only partially explored; and many Available online xxxx cichlid species still await their formal description. Here, we provide a current inventory of the cichlid fish Communicated by Björn Stelbrink fauna of Lake Tanganyika, providing a complete list of all valid 208 Tanganyikan cichlid species, and discuss the taxonomic status of more than 50 undescribed taxa on the basis of the available literature as well as our Keywords: own observations and collections around the lake. This leads us to conclude that there are at least 241 cichlid spe- Biodiversity cies present in Lake Tanganyika, all but two are endemic to the basin. We finally summarize some of the major Ichthyodiversity taxonomic challenges regarding Lake Tanganyika's cichlid fauna. -
Table S1. Species Studied and Specimen Information. Columns
Table S1. Species studied and specimen information. Columns refer to: tribe, species, species authority, the number of individuals sampled for intestine length and N isotope value (n), trophic guild membership as inferred from gut contents (Guild; Hori et al. 2003; P. McIntyre unpublished), voucher specimen accession numbers at the Cornell University Museum of Vertebrates (CUMV), mean intestine length (IL; cm), standard error intestine length (SE-IL), mean mass (M; g), standard error mass (SE-M), and mtDNA sequence data Genbank accession numbers for ND2 and CytB. Tribe names after Poll (1986), except as noted. All specimens were collected with permission from the University of Dar es Salaam in Tanzania. (Trophic guilds: P = piscivore; Z = zooplanktivore; A = algivore; I = invertivore; S = scale-eater.) Tribe Species Sp. Authority n Guild CUMV # IL SE-IL M SE-M ND 2 CytB Bathybatini Bathybates fasciatus Boulenger 1901 3 P 88627 108 9.29 20 11.13 EF679236 EF679268 Boulengerochromini1 Boulengerchromis microlepis Boulenger 1899 3 P 88760 177.67 14.52 21.31 1.15 EF679235 EF679267 1 Cyphotilapini Cyphotilapia frontosa Boulenger 1906 4 P 88626 144.5 39.7 144.3 57.37 EF679242 EF679274 Cyprichromini Cyprichromis leptosoma Boulenger 1898 4 Z 88630 99 6.89 9.96 0.29 EF679243 EF679275 Ectodini Xenotilapia leptura Boulenger 1901 3 A 89304 211.67 10.81 8.39 0.68 EF679238 EF679270 Poll & Matthes Opthalmotilapia heterodonta 1962 3 A 88644 397 34.43 28.54 2.66 EF679254 EF679286 Eretmodini Eretmodus cyanostictus Boulenger 1898 3 A 88640 184 15.72 7.12 0.79 -
Supporting Information
Supporting Information Fitzpatrick et al. 10.1073/pnas.0809990106 SI Methods likely to lead to 2 and 3, which in turn leads to 4. We can assess Testing the Directionality of Evolutionary Transitions. BayesDiscrete these possible evolutionary transitions by examining the tran- (www.evolution.rdg.ac.uk) (1) uses discrete binary data (0 and 1) sition parameters leading away from value 1. For example, the to assess all possible transitions between 2 traits. Traits assigned as evolutionary pathway of value 1 to 2 to 4 indicates that changes binary variables create 4 possible values (1 value per species) that in trait 2 preceded changes in trait 1, because the value 1 traits can be described as [trait 1,trait 2] as follows: [0,0], [0,1], [1,0], [1,1]. [0,0] shifted to value 2 traits [0,1]. Applying this logic, we can BayesDiscrete allows forward and reverse transitions between these assess the other possible evolutionary transitions described in 4 values, so there are 8 possible transitions between values: 4 our example above. forward and 4 reverse. Each transition parameter (q) is assigned a We assessed the frequency that transition parameters where unique numerical code describing the direction of change between set equal to zero using a reversible-jump Markov chain Monte Carlo (RJ MCMC) method, which explores the entire parameter 2 states. For example, q represents a transition from value 1 to 1,2 space. We selected a subsample of trees from the 2 million value 2, and q represents the reverse transition from state 2 to 2,1 generations produced from our MrBayes analysis. -
Appetite Regulating Genes May Contribute to Herbivory Versus Carnivory Trophic Divergence in Haplochromine Cichlids
Appetite regulating genes may contribute to herbivory versus carnivory trophic divergence in haplochromine cichlids Ehsan P. Ahi1,2, Anna Duenser2, Pooja Singh2,3, Wolfgang Gessl2 and Christian Sturmbauer2 1 Evolutionary Biology Centre, Uppsala University, Uppsala, Sweden 2 Institute of Biology, University of Graz, Graz, Austria 3 Institute of Biological Sciences, University of Calgary, Calgary, Canada ABSTRACT Feeding is a complex behaviour comprised of satiety control, foraging, ingestion and subsequent digestion. Cichlids from the East African Great Lakes are renowned for their diverse trophic specializations, largely predicated on highly variable jaw morphologies. Thus, most research has focused on dissecting the genetic, morphological and regulatory basis of jaw and teeth development in these species. Here for the first time we explore another aspect of feeding, the regulation of appetite related genes that are expressed in the brain and control satiety in cichlid fishes. Using qPCR analysis, we first validate stably expressed reference genes in the brain of six haplochromine cichlid species at the end of larval development prior to foraging. We next evaluate the expression of 16 appetite related genes in herbivorous and carnivorous species from the parallel radiations of Lake Tanganyika, Malawi and Victoria. Interestingly, we find increased expression of two appetite-regulating genes (anorexigenic genes), cart and npy2r, in the brain of carnivorous species in all the three lakes. This supports the notion that appetite gene regulation might play a part in determining trophic niche specialization in divergent cichlid species, already prior to exposure to different diets. Our study contributes to the limited body of knowledge on the neurological circuitry that controls feeding transitions and adaptations in cichlids and other teleosts. -
Parallel Evolution of Facial Stripe Patterns in the Neolamprologus Brichardi/Pulcher Species Complex Endemic to Lake Tanganyika
Available online at www.sciencedirect.com Molecular Phylogenetics and Evolution 45 (2007) 706–715 www.elsevier.com/locate/ympev Parallel evolution of facial stripe patterns in the Neolamprologus brichardi/pulcher species complex endemic to Lake Tanganyika Nina Duftner a,b,c, Kristina M. Sefc a, Stephan Koblmu¨ller a, Walter Salzburger d,f, Michael Taborsky e, Christian Sturmbauer a,* a Department of Zoology, University of Graz, Universita¨tsplatz 2, A-8010 Graz, Austria b FAS Center for Systems Biology, Harvard University, 7 Divinity Avenue, Cambridge, MA 02138, USA c Section of Integrative Biology, University of Texas at Austin, 1 University Station #C0930, Austin, TX 78712, USA d Department of Ecology and Evolution (DEE), University of Lausanne, UNIL Sorge, Le Biophore, CH-1015 Lausanne, Switzerland e Department of Behavioural Ecology, Zoological Institute, University of Bern, CH-3032 Hinterkappelen, Switzerland f Zoological Institute/Evolutionary Biology, University of Basel, Vesalgasse 1, CH-4051 Basel, Switzerland Received 6 March 2007; revised 2 August 2007; accepted 7 August 2007 Available online 15 August 2007 Abstract Colour pattern diversity can be due to random processes or to natural or sexual selection. Consequently, similarities in colour patterns are not always correlated with common ancestry, but may result from convergent evolution under shared selection pressures or drift. Neolamprologus brichardi and Neolamprologus pulcher have been described as two distinct species based on differences in the arrangement of two dark bars on the operculum. Our study uses DNA sequences of the mitochondrial control region to show that relatedness of hapl- otypes disagrees with species assignment based on head colour pattern.