An order of fish with eight families and numerous species of both egg-laying and livebearing fish. Families include Cyprinodontidae (egg-laying KILLIFISHES;), FUNDULIDAEl; (topminnows), Goodeidae (Mexican livebearers), Jenynsiidae (jenynsiids), Poeciliidae (livebearers), Profundulidae (Middle American killifishes), Aplocheilidae, and Rivulidae (rivulines). In the family Poeciliidae, the guppy and molly belong to the genus POECILIA.

Isolation and characterization of Vibrio parahaemolyticus causing infection in Iberian toothcarp Aphanius iberus. (1/216)

High mortality among laboratory cultured Iberian toothcarp Aphanius iberus occurred in February 1997 in Valencia (Spain). The main signs of the disease were external haemorrhage and tail rot. Bacteria isolated from internal organs of infected fish were biochemically homogeneous and identified as Vibrio parahaemolyticus. The bacteria were haemolytic against erythrocytes from eel Anguilla anguilla, amberjack Seriola dumerili, toothcarp A. iberus and humans, and were Kanagawa-phenomenon-negative. Infectivity tests showed that the virulence for A. iberus was dependent on salinity. Finally, all strains were virulent for amberjack and eel.  (+info)

Multiple binding sites in the growth factor receptor Xmrk mediate binding to p59fyn, GRB2 and Shc. (2/216)

Melanoma formation in Xiphoporus is initiated by overexpression of the EGFR-related receptor tyrosine kinase Xmrk (Xiphoporus melanoma receptor kinase). This receptor is activated in fish melanoma as well as in a melanoma-derived cell line (PSM) resulting in constitutive Xmrk-mediated mitogenic signaling. In order to define the underlying signaling pathway(s), triggered by the activated Xmrk receptor, we attempted to identify its physiological substrates. Examination of the Xmrk carboxyterminus for putative tyrosine autophosphorylation sites revealed the presence of potential binding motifs for GRB2 as well as for Shc. Binding of these adaptor proteins to the Xmrk receptor was detected in vitro and in cells expressing the mrk kinase. The GRB2 and Shc interactions with the receptor could be disrupted individually by phosphotyrosine peptides containing putative Xmrk autophosphorylation sites, indicating direct binding of both proteins. Recruitment of GRB2 by the constitutively activated Xmrk receptor led to strong MAP kinase activation in Xiphoporus melanoma cells. We also identified a high-affinity binding site for src-kinases (pYEDL) in the Xmrk carboxyterminus. Competition experiments with phosphopeptides comprising this site confirmed that it is used for high-affinity binding of Xiphoporus fyn (Xfyn) to Xmrk in melanoma cells. Thus, Xmrk can initiate different signaling pathways by using multiple substrate-binding sites to trigger proliferation of pigment cells.  (+info)

Female preferences in a fish genus without female mate choice. (3/216)

The evolution and the adaptive logic (if any) of female mate choice are subjects of lively debate. Whereas most researchers believe that females have evolved to recognize signs of male 'quality' (the ability to provide females or their offspring with direct or indirect genetic or material benefits), there is intriguing evidence that males can evolve to appeal to pre-existing female preferences. Evidence for these pre-existing biases is often ambiguous because phylogenetic reconstructions have usually failed to establish conclusively whether the female preference or the favored male traits evolved first. This potential difficulty is minimal in the mosquitofish genus Gambusia, none of whose 45 species appears to have a female-choice mating system in the wild, and none of which shows the male behavioral and morphological traits that are characteristic of female choice. Nevertheless, in an experimental situation in the laboratory, female Gambusia holbrooki readily chose between models of males and demonstrated significant and reliable preferences for a variety of exaggerated male traits that are not seen in their species or their genus. Other morphological alterations were not preferred. The latent willingness of females to choose traits in a genus without such traits and without evident female choice in the wild is remarkable and may indicate a pre-existing bias in females that is ready to drive male evolution, should the social system or the ecological variables that control it change.  (+info)

Model ecosystem evaluation of the environmental impacts of the veterinary drugs phenothiazine, sulfamethazine, clopidol, and diethylstilbestrol. (4/216)

Four veterinary drugs of dissimilar chemical structures were evaluated for environmental stability and penchant for bioaccumulation. The techniques used were (1) a model aquatic ecosystem (3 days) and (2) a model feedlot ecosystem (33 days) in which the drugs were introduced via the excreta of chicks or mice. The model feedlot ecosystem was supported by metabolism cage studies to determine the amount and the form of the drug excreted by the chicks or mice. Considerable quantities of all the drugs were excreted intact or as environmentally short-lived conjugates. Diethylstilbestrol (DES) and Clopidol were the most persistent molecules, but only DES bioaccumulated to any appreciable degree. Phenothiazine was very biodegradable; sulfamethazine was relatively biodegradable and only accumulated in the organisms to very low levels. Data from the aquatic model ecosystem demonstrated a good correlation between the partition coefficients of the drugs and their accumulation in the fish.  (+info)

Comparative structure and characterization of a CDKN2 gene in a Xiphophorus fish melanoma model. (5/216)

We have cloned, sequenced, and characterized the RNA expression properties of a fish CDKN2 gene from Xiphophorus helleri and X. maculatus. This gene, termed CDKN2X, shows a high degree of amino acid sequence similarity to members of the mammalian CDKN2 gene family, which includes the tumor suppressor loci CDKN2A (P16) and CDKN2B (P15). Comparative sequence analysis suggests that fish CDKN2X is similarly related to all four mammalian gene family members, and may represent a descendant of an ancestral prototypic CDKN2 gene. CDKN2X was mapped to a region on autosomal Xiphophorus linkage group V (LG V) known to contain the DIFF gene that acts as a tumor suppressor of melanoma formation in X. helleri/X. maculatus backcross hybrids. Thus, CDKN2X may be a candidate for the tumor suppressor DIFF gene. Here we have sequenced CDKN2X in both Xiphophorus species and have characterized its expression in normal and melanotic tissues within control and backcross hybrid fish. A simultaneous expressional analysis of the Xmrk-2 tyrosine kinase receptor gene, which is strongly implicated in melanomagenesis in this system, was also performed. RT - PCR analyses revealed that both genes were highly expressed in melanomas. For CDKN2X, this result contrasts numerous findings in human tumors including human melanoma in which either CDKN2A (P16) deactivation or LOH was observed.  (+info)

Melanoma loss-of-function mutants in Xiphophorus caused by Xmrk-oncogene deletion and gene disruption by a transposable element. (6/216)

The overexpression of the Xmrk oncogene (ONC-Xmrk) in pigment cells of certain Xiphophorus hybrids has been found to be the primary change that results in the formation of malignant melanoma. Spontaneous mutant stocks have been isolated that have lost the ability to induce tumor formation when crossed with Xiphophorus helleri. Two of these loss-of-function mutants were analyzed for genetic defects in ONC-Xmrk's. In the lof-1 mutant a novel transposable element, TX-1, has jumped into ONC-Xmrk, leading to a disruption of the gene and a truncated protein product lacking the carboxyterminal domain of the receptor tyrosine kinase. TX-1 is obviously an active LTR-containing retrotransposon in Xiphophorus that was not found in other fish species outside the family Poeciliidae. Surprisingly, it does not encode any protein, suggesting the existence of a helper function for this retroelement. In the lof-2 mutant the entire ONC-Xmrk gene was found to be deleted. These data show that ONC-Xmrk is indeed the tumor-inducing gene of Xiphophorus and thus the critical constituent of the tumor (Tu) locus.  (+info)

The non-LTR retrotransposon Rex3 from the fish Xiphophorus is widespread among teleosts. (7/216)

Rex3, the first reverse transcriptase (RT)-encoding retrotransposon isolated from the melanoma fish model Xiphophorus, is a non-long-terminal-repeat element related to the RTE family. The essential features of Rex3 are (1) an endonuclease and a reverse transcriptase, (2) 5' truncations of most of the copies, (3) a 3' tail consisting of tandem repeats of the sequence GATG, and (4) short target site sequence duplications of variable length. Compilation of Rex3 sequences from the pufferfish genome project suggested that, as observed for other members of the RTE family, no additional large open reading frame was present upstream of the endonuclease/reverse transcriptase open reading frame. There are about a thousand copies of Rex3 in the haploid genome of Xiphophorus, some of them probably resulting from recent retrotransposition events. Rex3 RNA was detected by RT-PCR in melanoma and in nontumorous tissues, as well as in melanoma-derived and embryonic cell lines. Rex3 is present in a broad panel of teleost species and was found in the promoter region and in introns of various genes. To our knowledge, Rex3 is the first autonomous retrotransposon described to date which is widespread in teleosts. This wide distribution and occasional association with coding sequences may confer on Rex3 a predisposition to play a role in genome evolution in teleosts.  (+info)

Effects of nonylphenol and 17beta-estradiol on vitellogenin synthesis and testis morphology in male platyfish Xiphophorus maculatus. (8/216)

Nonylphenol has been found to exert estrogenic effects in fish and may influence the fertility of male fish. In the present study, the effects of nonylphenol and 17beta-estradiol on vitellogenin synthesis and testis morphology in platyfish Xiphophorus maculatus were investigated. Vitellogenin was observed in the plasma of all fish exposed to nonylphenol or 17beta-estradiol. Exposure to 17beta-estradiol resulted in a significant reduction in the gonadosomatic index. A tendency for a dose-dependent reduction in the gonadosomatic index in the nonylphenol exposed groups was observed. Histological examination revealed dose-dependent effects of nonylphenol on the testis structure. The testes of control fish contained numerous cysts with spermatogenetic cells. The testes of fish exposed to nonylphenol or 17beta-estradiol showed a decrease in the number of cysts concomitant with an increase in the amount of hypertrophied Sertoli cells present. Formation of spermatozeugmata is compulsory for this species, but free spermatozoa were observed in the efferent ducts of the treated fish. The study indicates that nonylphenol has estrogenic potency, and that both nonylphenol and 17beta-estradiol have marked effects on the testis morphology of X. maculatus. The ambient concentration of nonylphenol was measured by high pressure liquid chromatography during the experiment. The measurements revealed that the actual concentrations of nonylphenol in the water were about 30-40 % of the nominal concentrations.  (+info)

Cyprinodontiformes is an order of ray-finned fish that includes several families, such as Cyprinodontidae (livebearers), Poeciliidae (including guppies and mollies), Aplocheilidae, Nothobranchiidae, Rivulidae, Valenciidae, Profundulidae, Goodeidae, Anablepidae, and Jenynsiidae. These fish are characterized by their small size, live-bearing reproduction (in most families), and the presence of a urogenital papilla in males. They inhabit a wide range of freshwater and brackish environments, with some species also found in marine habitats. Many cyprinodontiform fishes are popular as aquarium pets due to their vibrant colors and interesting behaviors.

Wikimedia Commons has media related to Cyprinodontiformes. Froese, Rainer, and Daniel Pauly, eds. (2007). "Cyprinodontiformes" ... Although the Cyprinodontiformes are a diverse group, most species contained within are small to medium-sized fish, with small ... The families of Cyprinodontiformes can be informally divided into three groups based on reproductive strategy: viviparous and ... Cyprinodontiformes /ˌsɪprɪnoʊˈdɒntɪfɔːrmiːz/ is an order of ray-finned fish, comprising mostly small, freshwater fish. Many ...
Cyprinodontiformes)". Zoological Journal of the Linnean Society. 13O: 1-53. doi:10.1006/zjls.1999.0213. J. S. Nelson; T. C. ... which is in turn one of the two constituent suborders of the order Cyprinodontiformes. They are found in mainly in the ... Cyprinodontiformes, Taxa named by Lynne R. Parenti). ...
Cyprinodontiformes indet. Gymnophiona indet. Heterotidinae indet. ?Madtsoiidae indet. Podocnemididae indet. Pycnodontidae indet ...
Christopher Scharpf; Kenneth J. Lazara (5 September 2019). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ... Cyprinodontiformes: Rivulidae), with the description of a new species". Zootaxa. 1227: 31-55. doi:10.11646/zootaxa.1227.1.2. ... fish which was applied to Killifish by Georges Cuvier and is now used a root for names within the order Cyprinodontiformes. Vaz ...
Christopher Scharpf; Kenneth J. Lazara (5 September 2019). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ...
Christopher Scharpf; Kenneth J. Lazara (5 September 2019). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ... Cyprinodontiformes: Aplocheilidae), with notes on family-group names used for aplocheiloids". Vertebrate Zoology. 66 (2): 125- ...
Christopher Scharpf; Kenneth J. Lazara (5 September 2019). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ...
Christopher Scharpf & Kenneth J. Lazara (22 September 2018). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ... The Simpsonichthys flavicaudatus species group (Cyprinodontiformes: Rivulidae: Cynolebiatinae): phylogenetic relationships, ...
Christopher Scharpf; Kenneth J. Lazara (5 September 2019). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ... Cyprinodontiformes, Rivulidae), including a proposal for a new genus". Zoologica Scripta. 45 (4): 394-406. doi:10.1111/zsc. ... Cyprinodontiformes, Aplocheiloidei) and a molecular and morphological phylogeny of the annual fish genus Austrolebias Costa ... Cyprinodontiformes: Cynolebiidae) from the upper Rio Jequitinhonha basin, Brazil". Zootaxa. 4263 (1): 165-172. doi:10.11646/ ...
Family: Synbranchidae Order: Cyprinodontiformes. Family: Aplocheilidae Family: Adrianichthyidae Order: Perciformes. Family: ...
Hrbek, Y.; D.C. Taphorn; J.E. Thomerson (2005). "Molecular phylogeny of Austrofundulus Myers (Cyprinodontiformes: Rivulidae), ... Christopher Scharpf; Kenneth J. Lazara (5 September 2019). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ...
Christopher Scharpf; Kenneth J. Lazara (5 September 2019). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ...
Christopher Scharpf; Kenneth J. Lazara (5 September 2019). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ...
Christopher Scharpf; Kenneth J. Lazara (5 September 2019). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ...
Christopher Scharpf; Kenneth J. Lazara (5 September 2019). "Order CYPRINODONTIFORMES: Family RIVULIDAE". The ETYFish Project ...
Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
Christopher Scharpf; Kenneth J. Lazara (May 31, 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE ...
Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
A review of the Malagasy Pachypanchax (Teleostei: Cyprinodontiformes, Aplocheilidae), with descriptions of four new species. ... Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
Scharpf, Christopher; Lazara, Kenneth J. (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE ...
Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
Paul V. Loiselle (2006). "A review of the Malagasy Pachypanchax (Teleostei: Cyprinodontiformes, Aplocheilidae), with ... Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
11]. Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and ...
Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
Christopher Scharpf; Kenneth J. Lazara (31 May 2019). "Order CYPRINODONTIFORMES: Families APLOCHEILIDAE and NOTHOBRANCHIIDAE". ...
Wikimedia Commons has media related to Cyprinodontiformes. Froese, Rainer, and Daniel Pauly, eds. (2007). "Cyprinodontiformes" ... Although the Cyprinodontiformes are a diverse group, most species contained within are small to medium-sized fish, with small ... The families of Cyprinodontiformes can be informally divided into three groups based on reproductive strategy: viviparous and ... Cyprinodontiformes /ˌsɪprɪnoʊˈdɒntɪfɔːrmiːz/ is an order of ray-finned fish, comprising mostly small, freshwater fish. Many ...
keywords = "Correlated evolution, Cyprinodontiformes, Pamphorichthys, Placentotrophy, Poecilia, Poeciliidae, Superfetation",. ... Cyprinodontiformes). / Meredith, Robert W.; Pires, Marcelo N.; Reznick, David N. et al. In: Molecular Phylogenetics and ... Cyprinodontiformes). Molecular Phylogenetics and Evolution. 2011 Apr;59(1):148-157. doi: 10.1016/j.ympev.2011.01.014 ... Cyprinodontiformes). In: Molecular Phylogenetics and Evolution. 2011 ; Vol. 59, No. 1. pp. 148-157. ...
The karyotype differentiation of the twelve known members of the Nothobranchius ugandensis Wildekamp, 1994 species group is reviewed and the karyotype composition of seven of its species is described herein for the first time using a conventional cytogenetic protocol. Changes in the architecture of eukaryotic genomes often have a major impact on processes underlying reproductive isolation, adaptation and diversification. African annual killifishes of the genus Nothobranchius Peters, 1868 (Teleostei: Nothobranchiidae), which are adapted to an extreme environment of ephemeral wetland pools in African savannahs, feature extensive karyotype evolution in small, isolated populations and thus are suitable models for studying the interplay between karyotype change and species evolution. The present investigation reveals a highly conserved diploid chromosome number (2n = 36) but a variable number of chromosomal arms (46-64) among members of the N. ugandensis species group, implying a significant role of
Cyprinodontiformes: Poeciliidae) in Central Mexico.. Beltrán-López, Rosa Gabriela; Domínguez-Domínguez, Omar; Pérez-Rodríguez, ...
Three new annual fishes of the genus Aphyolebias Costa, 1998 (Cyprinodontiformes: Rivulidae) from Bolivian and Peruvian Amazon ...
Inventaire National du Patrimoine Naturel (2021). Projets de suivis faunes association Environat-suivi odonates environat. UMS PatriNat (OFB-CNRS-MNHN), Paris. Occurrence dataset https://doi.org/10.15468/fjm5me accessed via GBIF.org on 2024-04-25 ...
Order: Cyprinodontiformes (rivulines, killifishes and live bearers). Class: Actinopterygii (ray-finned fishes). Max. size: 5 cm ...
Cyprinodontiformes Berg, 1940 - cyprinodonts, cyprinodontiforms, cyprinodontes, killifishes. Suborder. Aplocheiloidei - ...
Cyprinodontiformes Berg, 1940 - cyprinodonts, cyprinodontiforms, cyprinodontes, killifishes. Suborder. Aplocheiloidei - ...
Life Pisces Actinopterygii Cyprinodontiformes prev. next. Scientific names. Finnish names. English names. ...
Řád: Cyprinodontiformes - halančíkovci. Čeleď: Goodeidae - gudeovití. Typový druh. Zoogoneticus zonistius Hubbs, 1932 ...
Reproductive strategies of two Neotropical killifish, Austrolebias vandenbergi and Neofundulus ornatipinnis (Cyprinodontiformes ...
Cyprinodontiformes: Rivulidae) de Poças Temporárias da Região Semiárida do Brasil. Biota Amazôn., v. 2, n. 1, p. 37-44, 2012. ... Cyprinodontiformes: Rivulidae) de Poças Temporárias da Região Semiárida do Brasil. Biota Amazôn., v. 2, n. 1, p. 37-44, 2012. ...
Cyprinodontiformes Order. :. Rivulidae Family. :. Cynolebias Genus. :. Cynolebias porosus Species. Map Views: World , NATL , ...
Costa, W.J.E.M. (2006) The South American annual killifish genus Austrolebias (Teleostei: Cyprinodontiformes: Rivulidae): ...
Cyprinodontiformes SCIENTIFIC NAME - Pseudochromis Polynemus COMMON NAME - Longfin Dottyback SIZE - 4.7 (12 cm) RANGE - ... FAMILY - Cyprinodontiformes. SCIENTIFIC NAME - Pseudochromis Polynemus. COMMON NAME - Longfin Dottyback. SIZE - 4.7 (12 cm). ...
Cyprinodontiformes (Fundulus heteroclitus, Kryptolebias marmoratus, Poecilia formosa), Perciformes (Cyclopterus lumpus, ... Cyprinodontiformes (Funhet: Fundulus heteroclitus, Krymar: Kryptolebias marmoratus, Poefor: Poecilia formosa), Perciformes ( ...
Short-lived killifishes of the genus Nothobranchius Peters, 1868 (Cyprinodontiformes) are considered promising model organisms ...
Cyprinodontiformes). Zootaxa, 4810 (3), 421-451. https://doi.org/10.11646/zootaxa.4810.3.2 DOI: https://doi.org/10.11646/ ...
Cyprinodontiformes: Anablepidae). Neotropical Ichthyology v. 11 (no. 3): 565-572. ...
The Atheriniformes are closely related to the Beloniformes (halfbeaks and flying fish) and the Cyprinodontiformes (killifish ...
Teleostei (teleosts) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Nothobranchiidae (African rivulines). ...
SPERMATOGONIES ET SPERMATOCYTES FLAGELLÉS CHEZ POECILIA RETICULATA (TÉLÉOSTÉENS CYPRINODONTIFORMES) p. 281 R. BILLARD, J.-E. ...
Cyprinodontiformes Family. : Aplocheilidae. Genus. : Aplocheilus. Species. : Aplocheilus panchax. Common Names:. English. : ...
Order : Cyprinodontiformes. Family : Rivulidae. Genus : Cynopoecilus. Species : Cynopoecilus intimus Authority : Costa, 2002 ...
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Bettas, fighting fish, or fighting fish (Betta sp.) are freshwater fish whose native habitat is several countries in Southeast Asia, Indonesia. This fish has a unique character and tends to be aggressive in defending its territory. Among fans, betta fish are generally divided into three groups, namely ornamental betta, complaint betta, and liar betta. In Indonesia there are native betta, one of which is Betta channoides found in Pampang, East Kalimantan.. Betta fish are one of the fish that survive for a long time so if the fish is placed in a container with a small volume of air and without an air circulation device (aerator), these fish can still survive.. ...
  • Three new annual fishes of the genus Aphyolebias Costa , 1998 (Cyprinodontiformes: Rivulidae) from Bolivian and Peruvian Amazon. (wikimedia.org)
  • Short-lived killifishes of the genus Nothobranchius Peters, 1868 (Cyprinodontiformes) are considered promising model organisms for biomedical research on ageing and tumorigenesis. (muni.cz)
  • Jenynsia luxata , a new species from northwestern Argentina, with additional observations of J. maculata Regan and phylogeny of the genus (Cyprinodontiformes: Anablepidae). (calacademy.org)
  • Evolving in the highlands: the case of the Neotropical Lerma live-bearing Poeciliopsis infans (Woolman, 1894) (Cyprinodontiformes: Poeciliidae) in Central Mexico. (bvsalud.org)
  • The Atheriniformes are closely related to the Beloniformes (halfbeaks and flying fish) and the Cyprinodontiformes (killifish and livebearers), and together they form a large group known as the Atherinomorpha. (wetwebmedia.com)
  • Comparative morphology and classification of South American cynopoeciline killifishes (Cyprinodontiformes: Aplocheilidae), with notes on family-group names used for aplocheiloids" (PDF). (wikipedia.org)
  • The families of Cyprinodontiformes can be informally divided into three groups based on reproductive strategy: viviparous and ovoviviparous (all species give live birth), and oviparous (all species are egg-laying). (wikipedia.org)
  • Although the Cyprinodontiformes are a diverse group, most species contained within are small to medium-sized fish, with small mouths, large eyes, a single dorsal fin, and a rounded caudal fin. (wikipedia.org)
  • Cyprinodontiformes /ˌsɪprɪnoʊˈdɒntɪfɔːrmiːz/ is an order of ray-finned fish, comprising mostly small, freshwater fish. (wikipedia.org)