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Topic: Xiphophorus

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	Xiphophorus variatus
		Å eima: Poeciliidae Gentis: Xiphophorus RÅ«Å¡is: Xiphophorus variatus (Meek, 1904) Liet.: Pecilija.
		: Xiphophorus Maculatus Xiphophorus Maculatus Xiphophorus Maculatus Var Xiphophorus Maculatus Var Xiphophorus Variatus Xiphophorus Variatus Xiphophorus Variatus...
		Variatus Platy, Xiphophorus variatus, Threadfin Rainbow, Iriatherina werneri.
	specieslist.com /fish_species/WXYZ/Xiphophorus_variatus.shtml (1366 words)

	Xiphophorus Helleri (Swordtail) - FishandTips.com
		Xiphophorus Helleri's main caracteristic is the male's sword at the end of its tail.
		Xiphophorus Helleri is closely related to Xiphophorus Maculatus (Platy).
		Xiphophorus Helleri is one of the easiest tropical fish to breed.
	www.fishandtips.com /displaydb.php?ID=8 (1009 words)

	Thorup's opdrætsside - Xiphophorus milleri
		Xiphophorus milleri is a wild species of swordtail from Lake Catemaco (and its associated streams) in Veracruz, Mexico.
		Xiphophorus milleri is a swordless variety of pygmy swordtail.
		The Xiphophorus milleri populations appear to be more confined to the streams and the edges of the lake near to the streams and differently marked varieties (morphs) of the fish can be found in different streams.
	www.fishbreeding.dk /artikler/x_milleri.html (946 words)

	Xiphophorus pygmaeus
		Aquarium setup: Xiphophorus pygmaeus (Slender Pygmy Swordtail) is best kept in an aquarium that is densely planted among the sides and in the back while the front of the aquarium is left open for the fishes to swim on.
		Always keep more Xiphophorus pygmaeus (Slender Pygmy Swordtail) females than males in an aquarium since the males can be very persistent in their courtship of the females.
		Breeding: Xiphophorus pygmaeus (Slender Pygmy Swordtail) are livebearers.
	www.aquaticcommunity.com /encyclopedia-284.html (512 words)

	selecting1
		apistogramma cacatuoides, aulonocara nyassae, barbus nigrofasciatus, barbus semifasciolatus, barbus tetrazona, carnegiella strigata, corydoras aeneus, cyrtocara moorii, epalzeorhynchos bicolor, maylandia zebra, melanotaenia boesemani, nannacara anomala, papiliochromis ramirezi, pelvicachromis pulcher, poecilia sphenops, poecilia velifera, pterophyllum scalare, symphysodon aequifasciatus, xiphophorus helleri, xiphophorus maculatus,
		apistogramma cacatuoides, aulonocara nyassae, barbus nigrofasciatus, barbus semifasciolatus, barbus tetrazona, carnegiella strigata, corydoras aeneus, cyrtocara moorii, maylandia zebra, melanotaenia boesemani, nannacara anomala, papiliochromis ramirezi, pelvicachromis pulcher, poecilia sphenops, poecilia velifera, pterophyllum scalare, symphysodon aequifasciatus, xiphophorus helleri, xiphophorus maculatus,
		aulonocara nyassae, barbus nigrofasciatus, barbus semifasciolatus, barbus tetrazona, barbus titteya, botia macracantha, cyrtocara moorii, epalzeorhynchos bicolor, kryptopterus bicirrhis, macropodus opercularis, maylandia zebra, melanotaenia boesemani, pelvicachromis pulcher, poecilia reticulata, poecilia sphenops, poecilia velifera, rasbora heteromorpha, tanichthys albonubes, trichogaster leeri, trichogaster trichopterus, xiphophorus helleri, xiphophorus maculatus,
	website.lineone.net /~tropical-world/selecting.htm (1209 words)

	The Xiphophorus Genetic Stock Center (Site not responding. Last check: 2007-10-29)
		The Xiphophorus Genetic Stock Center, by providing fish to the international scientific community for study, at the very least reduces collecting pressure on wild populations, and could in the future preserve the only living representatives of some species.
		Unlike most mammals, where fertile hybrids between species are difficult or often impossible to produce, Xiphophorus hybrids are almost always fertile and are extremely valuable for their genetic variability and their very specific susceptibilities for many different cancers.
		Xiphophorus maculatus, from the Rio Jamapa, Veracruz, Mexico.
	www.xiphophorus.org /xgsc.htm (1724 words)

	NBAT - het Aquarium: Atoyac-zwaardplaty, Xiphophorus andersi
		Eén van de soorten met een dergelijk klein verspreidingsgebied is de Atoyac-zwaardplaty Xiphophorus andersi, die alleen voorkomt in het stroomgebied rondom de bron van Rio Atoyac.
		Xiphophorus andersi werd in 1979 door Meyer en Schartl beschreven (typevindplaats: Finca St. Anita, Chico, Vera Cruz, Mexico.) en is genoemd naar prof.
		Net als Xiphophorus xiphidium heeft ook deze platy dit opvallende kenmerk, dat vooral van zwaarddragers bekend is. De mannetjes van de Atoyac-zwaardplaty worden ongeveer 5 cm lang, de vrouwtjes kunnen een lengte van 7,5 cm bereiken.
	www.nbat.nl /aquarium2/x_andersi.html (1610 words)

	Collecting Sheepshead and Highland Swordtails (Xiphophorus birchmanni and Xiphophorus malinche) in the Rio Calnali (Site not responding. Last check: 2007-10-29)
		Xiphophorus birchmanni and X. malinche are a wild species of Mexican swordtails, which were introduced to the hobby by Dr. Klaus Kallman, retired curator of the Xiphophorus Stock Center.
		Xiphophorus birchmanni (Sheepshead Swordtail) and X. malinche (Highland Swordtail), come from the upper mountainous regions of central Mexico in the Rio Panuco basin.
		Xiphophorus birchmanni is considered to be a swordless species of Xiphophorus swordtail; however, a sword of 1 mm or less can be present.
	gaas-fish.net /ttopics/1998/2swords.htm (1567 words)

	ITIS Standard Report Page: Xiphophorus (Site not responding. Last check: 2007-10-29)
		Xiphophorus maculatus (Günther, 1866) -- platy, southern platyfish
		Xiphophorus montezumae Jordan and Snyder, 1899 -- mexican swordfish, Mexican swordfish, Montezuma helleri, montezuma helleri
		Xiphophorus pygmaeus Hubbs and Gordon, 1943 -- dwarf helleri, dwarf helleri, dwarf swordtail, dwarf swordtail
	www.itis.usda.gov /servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=165919 (210 words)

	Cogprints - Inversion of initial dominance relationships following the interchange of roles of resident and intruder ... (Site not responding. Last check: 2007-10-29)
		On the first occasion, one of the fish was familiarized with the meeting place for 3h (resident) while its opponent was familiarized with another aquarium (intruder).
		On their second meeting, the newly established dominance relationship was noted in favour of the new resident in a significant majority of cases (82%), and in a reversed direction as compared to the initially established dominance order.
		Prior residency and the stability of dominance relationships in pairs of green swordtail fish Xiphophorus helleri (Pisces, Poeciliidae).
	www.cogprints.org /1933 (492 words)

	Cogprints - Social organization of small heterosexual groups of Green swordtails (Xiphophorus ... (Site not responding. Last check: 2007-10-29)
		These results support the sociobiological theorem that to dominate is to have priority of access to the necessities of life and reproduction.
		Hemens, J. The ethological significance of the sword tail in Xiphophorus helleri (Haeckel).
		The effect of sex hormones in the social hierarchy of Xiphophorus helleri.
	cogprints.org /1970 (1414 words)

	Xiphophorus Maculatus (Platy) - FishandTips.com
		Vey similar to its cousin, Xiphophorus Helleri, Platys do not have the sword extension than Swordtails have.
		Xiphophorus Maculatus likes hard water and bright lighting.
		Notes: Xiphophorus Maculatus is an active fish that lives in the shaded rivers of Mexico and Guatemala where waters are clear and oxygenated.
	www.fishandtips.com /displaydb.php?ID=22 (687 words)

	Cogprints - Prior residency and the stability of dominance relationships in pairs of green swordtail fish Xiphophorus ... (Site not responding. Last check: 2007-10-29)
		Prior residency and the stability of dominance relationships in pairs of green swordtail fish Xiphophorus helleri (Pisces, Peociliidae)
		Beaugrand, Jacques P. and Beaugrand, Martin (1991) Prior residency and the stability of dominance relationships in pairs of green swordtail fish Xiphophorus helleri (Pisces, Peociliidae).
		Noble, G.K., Borne, R. The effect of sex hormones in the social hierarchy of Xiphophorus helleri.
	www.cogprints.org /1942 (671 words)

	CMP Directory - Fish Resource
		The Xiphophorus Genetic Stock Center (XGSC) will serve as a catalyst for continued field studies aimed at identification and preservation of new Xiphophorus species before their demise due to habitat destruction.
		The stock center is continuing saturation of the Xiphophorus gene map and development of expressed sequence tag (EST) markers providing investigators with comparative mapping data to approach complex scientific questions.
		The stock center also is establishing technology that will allow cryopreservation of Xiphophorus sperm samples and thereby provide a preservation program where the XGSC maintains the genetic heritage of all Xiphophorus strains and species.
	www.ncrr.nih.gov /ncrrprog/cmpdir/FISH.asp (700 words)

	Cogprints - Conflict outcome in male green swordtail fish dyads (Xiphophorus helleri): Interaction of body size, prior ... (Site not responding. Last check: 2007-10-29)
		The relative contribution of asymmetries in prior experience, size, and prior residency to the determination of dyadic dominance between unacquainted individuals was examined using pairs of green swordtail fish, Xiphophorus helleri.
		Prior residency and the stability of dominance relationships in pairs of green swordtail fish Xiphophorus helleri.
		Ribowski, A. and Franck, D. Demonstration of strength and concealment of weakness in escalating fights of male swordtails (Xiphophorus helleri).
	cogprints.org /1953 (824 words)

	IWR: Cyprinodontiformes: Poeciliidae: Xiphophorus (Site not responding. Last check: 2007-10-29)
		Xiphophorus couchianus (Girard) - Monterrey platyfish / espada de Monterrey - photograph - In: TNHC Fishes of North America -
		Xiphophorus gordoni Miller & Minckley - Cuatro Ciénegas platyfish / espada de Cuatro Ciénegas - text - photograph - In: TNHC Fishes of North America -
		Xiphophorus montezumae Jordan & Snyder - Montezuma swordtail / espada de Montezuma - photograph - In: TNHC Fishes of North America -
	www2.biology.ualberta.ca /jackson.hp/IWR/Taxa/Cyprinodontiformes/Poeciliidae/Xiphophorus/index.php (95 words)

	NCRR Reporter October 2002 - News: NCRR Funds Unique Fish Resource
		As the only source of pedigreed Xiphophorus lines in the world, the Center maintains more than 60 genetic strains of the fish, which is an increasingly important animal model for biomedical studies.
		The Xiphophorus Genetic Stock Center was founded more than six decades ago, following the discovery that crossing the platyfish Xiphophorus maculatus with the swordtail Xiphophorus helleri produced hybrids that developed cancers virtually identical to human skin cancer, or malignant melanoma.
		In addition to its role in cancer research, Xiphophorus is also used for studying evolution of the immune system, neural systems that maintain balance, sex-determining genes, and brain distribution of chemicals that regulate growth and reproduction.
	www.ncrr.nih.gov /newspub/oct02rpt/news2.asp (268 words)

	Xiphophorus bimaculatus
		Company: Xiphophorus bimaculatus is best kept alone or with other small peaceful species..
		Aquarium setup: Xiphophorus bimaculatus should be kept in densely planted aquariums with some open areas.
		Feeding: Xiphophorus bimaculatus will accept all food that are small enough for their small mouths.
	www.aquaticcommunity.com /encyclopedia-264.html (437 words)

	Dr. Ron Walter - Publications - Peer Reviewed and Invited Publications (Site not responding. Last check: 2007-10-29)
		Walter, R.B., Harless, J., Svensson, R.T., Kallman, K.D., Morizot, D.C., and R.S. Nairn (1991) Linkage assignment of a DNA sequence (ERCC2L1) homologous to a human DNA repair gene in Xiphophorus:: Implications for the evolutionary derivation of human chromosome 19.
		Characterization of a Tyrosine Kinase-Peptidase A Synteny in Linkage Group XII of Xiphophorus (Teleostei: Poeciliidae): Implications for Vertebrate Chromosome Evolution.
		Sperm cryopreservation of green swordtail Xiphophorus helleri, a fish with internal fertilization.
	chemadmin.chemistry.txstate.edu /xiphophorus/RonWalter_CV_Peer_Reviewed.html (1768 words)

	Checklist of Freshwater Fishes Native to North America (Site not responding. Last check: 2007-10-29)
		Xiphophorus malinche Rauchenberger, Kallman and Morizot 1990 highland swordtail
		Xiphophorus meyeri Schartl and Schröder 1988 marbled swordtail
		Xiphophorus montezumae Jordan and Snyder 1900 Moctezuma swordtail
	www.nanfa.org /bccdiversity.shtml (4882 words)

	Overexpression of a fish CDKN2 gene in a hereditary melanoma model -- Kazianis et al. 21 (4): 599 -- Carcinogenesis
		Schartl,M. (1990) Homology of melanoma-inducing loci in the genus Xiphophorus.
		Kazianis,S. and Borowsky,R. (1995) Stable association of a pigmentation allele with an oncogene: non-hybrid melanomas in Xiphophorus variatus.
		Morizot,D.C. and Siciliano,M.J. (1983) Linkage group V of platyfishes and swordtails of the genus Xiphophorus (Poeciliidae): linkage of loci for malate dehydrogenase-2 and esterase-1 and esterase-4 with a gene controlling the severity of hybrid melanomas.
	carcin.oxfordjournals.org /cgi/content/full/21/4/599 (4923 words)

	Xiphophorus helleri lyretail
		One of the most popular varieties of Xiphophorus helleri among aguarium hobbyists is the lyretail one, also called the dragon swordtail.
		This type of swordtail is very hard to breed, since most of the swordtails available in the hobby today are hybrids of X.helleri with X.maculatus and some times X.variatus.
		In my exrerience with the Xiphophorus genus I keep the females in separate tanks,, away from the males in order to control the number of births.
	www.malawicichlidhomepage.com /other/xiphophorus_helleri.html (177 words)

	Cogprints - Resolution of agonistic conflicts in dyads of acquainted green swordtails (Xiphophorus helleri, Pisces, ... (Site not responding. Last check: 2007-10-29)
		Conflict resolution of familiar opponents was compared to that of unfamiliar ones in Xiphophorus helleri males.
		Influence of prior agonistic experiences on aggression measures in the male swordtail (Xiphophorus helleri).
		Demonstration of strenght and concealment of weakness in escalating fights of male swordtails (Xiphophorus helleri).
	cogprints.org /1944 (1033 words)

	A Microsatellite Genetic Linkage Map for Xiphophorus -- Walter et al. 168 (1): 363 -- Genetics
		A Microsatellite Genetic Linkage Map for Xiphophorus -- Walter et al.
		XIPHOPHORUS is a fish genus comprising small fish derived from
		Xiphophorus hybrid models have been established to study the
	www.genetics.org /cgi/content/full/168/1/363 (3792 words)

	Zhao, 2001 (Site not responding. Last check: 2007-10-29)
		Melanoma development in the fish Xiphophorus is determined, at least in part, by overexpression and activation of the Xmrk-2 oncogene, which triggers a variety of signal transduction pathways resulting in altered cell cycle control.
		The isolated clone is a 2.7 kb cDNA encoding a predicted protein of 664 amino acids.
		Further characterization of Xiphophorus FoxO5 will contribute to understanding the molecular basis of carcinogenesis in these species.
	sciencepark.mdanderson.org /%7EButler/pubs/rudd2003a.html (228 words)

	Swordtail - Freepedia (Site not responding. Last check: 2007-10-29)
		The Swordtail (Xiphophorus helleri) is a popular freshwater aquarium fish species.
		It is closely related to the Platy (Xiphophorus maculatus) and can interbreed with it.
		Originally from South America, it has been bred into various hybrid forms for the aquarium hobby due to their hardiness and for being well suited to a community aquarium.
	en.freepedia.org /Swordtail.html (155 words)

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