Comprehensive phylogenetic analysis of all species of swordtails and platies pisces. Of the 27 species of xiphophorus, conventional cryopreservation of germplasm yielding offspring has been reported in only 3 species x. The complete mitochondrial genome of the monterrey platyfish. The many xiphophorus species are all called either platyfish or platies or swordtails. Myron gordon established the xiphophorus genetic stock center xgsc at the american museum of natural history. An emerging system in ecological and evolutionary genetics. Like most other new world poeciliids, platies and swordtails are livebearers. The monterrey platyfish xiphophorus couchianus is a species of freshwater fish in family. The assembly is on scaffold level, consisting of 74,316 contigs assembled into 25 scaffolds. Name derived from latin for a dweller in the mountains, referring to the species restricted range to headwater streams inside the sierra. In 1992, due to the retirement of its past director dr. The monterrey platyfish xiphophorus couchianus is native to the vicinity of monterrey, mexico and is listed as critically endangered by international union for. Xiphophorus alvarezi is a livebearing poecilid found along the atlantic slope in southern mexico and guatemala.
The n50 size is the length such that 50% of the assembled genome lies in blocks of the n50 size or longer. The availability of high quality genome assemblies in key xiphophorus species i. Xiphophorus synonyms, xiphophorus pronunciation, xiphophorus translation, english dictionary definition of xiphophorus. Files are available under licenses specified on their description page. In the arroyo chapultepec natural hybrids between x. All structured data from the file and property namespaces is available under the. Platypoecilus maculatus development, compared to that of xiphophorus hellerii and platypoecilus xiphophorus hybrids, shows the following differences. Xiphophorus couchianus was first described in 1859 from monterrey and cadereyta by cli. Characterization of telomeres and telomerase expression in. Although described in 1959, it is officially still known only from three locations in the rio coatzacoalcos basin, mexico.
An xiphophorus maculatus in nahilalakip ha genus nga xiphophorus, ngan familia nga poeciliidae. Gene expression variation and parental allele inheritance. Through heavy feeding of live foods, top water quality and a variety of other tricks he got them to 5. Xiphophorus couchianus apodaca 5 xiphophorus evelynae tecolutla 5 xiphophorus gordoni cuatro cienagas 5 xiphophorus hellerii r. The information presented in these manuals should help farmers to overcome some of the difficulties encountered with the commercial production of ornamental fish in hawaii. Approximate geographical distributions of three xiphophorus species. We present sequencing, assembly and annotation of two new genomes representing xiphophorus couchianus and xiphophorus hellerii.
Jul 12, 2016 males of the pygmy swordtail xiphophorus pygmaeus become only about 3. Fulltext is provided in portable document format pdf. They have been in the tropical fish hobby for as long as it has existed. Indeed, xiphophorus couchianus may be the most plain jane of all the platies and swortails. The xgsc is one of the oldest scientific resource centers in america. Previously, it was demonstrated that first generation backcross bc 1 hybrids between the parentals of xiphophorus maculatus jp 163b strain and xiphophorus couchianus are susceptible to uvinduced melanomagenesis setlow et al. Sperm cryopreservation of a livebearing fish, xiphophorus couchianus. Pdf the xiphophorus genetic stock center manual researchgate. Download acrobat pdf file 545kb supplement table 1. Discover lifes page about the biology, natural history, ecology, identification and distribution of xiphophorus couchianus monterrey platyfish discover life. To validate use of the water and ensure there were no background traces of cortisol, 50 ml volumes were analyzed using methods described for fish samples section 2. An xiphophorus maculatus in uska species han actinopterygii nga syahan ginhulagway ni gunther hadton 1866.
Xiphophorus couchianus is one of the three northern platys that belong to the rio grande platy subset consisting of consisting of x. Preserving xiphophorus couchianus in the home aquarium, part. Cortisol release in response to uvb exposure in xiphophorus fish. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. A new species of the genus xiphophorus h eckel endemic to. Recent advances in sunlightinduced carcinogenesis using. Two new species of xiphophorus poeciliidae from the. To view articles you must have the free adobe acrobat reader. Embryonic development of the platyfish platypoecilus.
Xiphophorus fishes are represented by 26 livebearing species of tropical. Xiphophorus couchianus monterrey platy fish should be kept in an aquarium that is densely planted among the sides and back. Schreibman, 1973a a sexlinked gene controlling gonadotrop differentiation and its significance in determining the age of sexual maturation and size of the platyfish, xiphophorus maculatus. All fish in the xgsc were maintained as pedigreed lines. A very nice, yellow sport of the pygmy swordtail exists. The swordtail, xiphophorus clemenciae poeciliidae, has been considered a species of special concern because of its apparent limited range. It has continually provided scientists with pedigreed and inbred strains of livebearing platyfishes and swordtails of the genus xiphophorus for over 80. Xiphophorus species are regularly used in genetic studies, and scientists have developed many interspecific hybrids, especially in melanoma research since the 1920s. Xiphophorus interspecies hybrids as genetic models of. An xiphophorus couchianus in nahilalakip ha genus nga xiphophorus, ngan familia nga poeciliidae. Classification names common names synonyms catalog of fishes gen. Species xiphophorus couchianus monterrey platyfish. The xiphophorus genetic stock center, founded by myron gordon in 1939, is an important source of these fish for research. This species is distinguished by having a medium to large swordtail with a long straight caudal appendage.
This page was last edited on 23 october 2012, at 07. Actinopterygii rayfinned fishes cyprinodontiformes rivulines, killifishes and live bearers poeciliidae poeciliids poeciliinae etymology. The xiphophorus genetic stock center currently hosts genomes for 4 xiphophorus species. Pdf background males in some species of the genus xiphophorus, small freshwater fishes from mesoamerica. This manual on the commercial production of the swordtail, xiphophorus helleri, is the latest in the series. Etiology of mnuinduced melanomas in xiphophorus hybrids. Help pages, faqs, uniprotkb manual, documents, news archive and biocuration projects. The xiphophorus genetic stock center provides fish from more than 70 genetic strains to scientists and aquarists around the world. But the fact that the main population has been extinct since the 1960s, and that a color morph population possibly a different species or hybrid may be extinct or at best critically endangered, brings with it the cache of something rare and. Fish of the genus xiphophorus are commonly referred to as the platies and swordtails. The three species of xiphophorus that are known from the rio grande drainage in mexico and are the most northern of the genus are meyeri, gordoni, and couchianus. The females become a bit larger, but even the dames are very small fshes, compared with the commonly known swordtail, xiphophorus hellerii. Characterization, identification and phylogeny of the. Xiphophorus couchianus monterrey platy fish can be kept in community aquariums with other fishes with equal demands.
Hosted by the usgs core science analytics and synthesis. Identification of transcriptome snps between xiphophorus. The monterrey platyfish xiphophorus couchianus is a species of freshwater fish in the family poecilidae. Page designed through the cooperative efforts of interagency itis teams. It appears tobe the northernmost species of the genus. A manual for commercial production of the swordtail.
Xiphophorus couchianus female picture by nilsson, k. Download acrobat pdf file 28mb supplementary tables table s1. Production of f1 offspring with vitrified sperm from a live. Allelic expression preference and coefficient of variation in interspecies f 1. Itis col worms cloffa actinopterygii rayfinned fishes cyprinodontiformes rivulines, killifishes and live bearers poeciliidae poeciliids poeciliinae etymology. Klaus kallman, the xgsc moved to texas state university. Scientists in more than 30 laboratories in the united states, canada, mexico, japan and germany work on xiphophorus genetics and depend on strains available from the stock center. Genus xiphophorus uncovers a hybrid origin of a swordtail fish, xiphophorus monticolus, and demonstrates that the sexually selected sword originated in the ancestral lineage of the genus, but was lost. Ginklasipika han iucn an species komo nangangaratan duro. By yingjia shen, domitille chalopin, tzintzuni garcia, mikki boswell. Identification of transcriptome snps between xiphophorus lines and species for assessing allele specific gene expression within f. The evolutionary history of xiphophorus fish and their. Espesye sa isda nga una nga gihulagway ni girard ni adtong 1859 ang xiphophorus couchianus.
Genetic hybrids of the genus xiphophorus have historically been useful models for study of the genetic aspects of tumor formation. Hybridizationresponsive genes in spcouch, compared to x. However, it is not a legal authority for statutory or regulatory purposes. This page was last edited on 17 november 2016, at 08. The genus xiphophorus is composed of 26 described members of platyfish and swordtails. The stars are the locations where fishes were collected and the red stars are the location of.
The specific name refers to the american soldier and naturalist darius n. Xiphophorus is a genus of euryhaline and freshwater fishes in the family poeciliidae of order cyprinodontiformes, native to mexico and northern central america. A taxonomic genus within the family poeciliidae platyfish and swordtails. Xiphophorus monticolus, southern mountain swordtail. Xiphophorus definition of xiphophorus by the free dictionary. All structured data from the file and property namespaces is available under the creative commons cc0 license. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Molecular genetic response of xiphophorus maculatusx. The monterrey platyfish xiphophorus couchianus is a species of freshwater fish in family poecilidae. Two new species of xiphophorus poeciliidae from the isthmus. Xiphophorus couchianus monterrey platyfish discover life. The common name for this fish is the chiapas sword which makes sense since chiapas is smack dab in the middle of the range of this fish.
A livebearer, it was native to a very small section of the san juan river system itself part of the rio grande basin in the vicinity of the city of monterrey, mexico. Fishes of the genus xiphophorus are wellstudied biomedical research models, and. Adults occur in warm springs, canals and ditches with typically slowmoving water, silt bottoms and weedy banks refs. An xiphophorus couchianus in uska species han actinopterygii nga syahan ginhulagway ni girard hadton 1859. Water from home aquaria was collected for use in experiments. The xiphophorus genetic stock center has operated within the united states since the 1930s making it one of the oldest live animal resource centers worldwide. Pdf comprehensive phylogenetic analysis of all species of. Xiphophorus cortezi rosen, 1960 delicate swordtail, espada fina. Xiphophorus clemenciae general introduction 66 xiphophorus clemenciae, fincaii 67 xiphophorus clemenciae, grande 68 xiphophorus continens 69 xiphophorus cortezi 70 xiphophorus couchianus 73 xiphophorus evelynae 74 xiphophorus gordoni 76 xiphophorus meyeri, muzquiz platyfish 78 xiphophorus milleri 80 xiphophorus mixei, sol 82 xiphophorus. Sperm cryopreservation of a livebearing fish, xiphophorus. Preserving xiphophorus couchianus in the home aquarium. Xiphophorus specimens collected by m, gordon from huasteca have also been considered to be x. The genome alignment data is also available in the data directory.
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