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Tropidophoxinellus alburnoides
''Tropidophoxinellus alburnoides'' is a species of fish in the family Cyprinidae. It is found in Portugal and Spain. Its natural habitats are rivers and intermittent rivers. It may be threatened by habitat loss.
''Tropidophoxinellus alburnoides'' is a highly peculiar fish in regard to its evolution and reproduction. It has been derived from hybridisation between females of ''Squalius pyrenaicus'' and males of another, unknown cyprinid species, and maintains the genomes of both parental species. ''Tropidophoxinellus alburnoides'' may have various numbers of these genomes (polyploidy), and may use different reproductive modes to pass them on to the offspring, including asexual reproduction, normal meiosis and hybridogenesis.
==Sources==
* Crivelli, A.J. (2006) (Iberocypris alburnoides ). (2010. IUCN Red List of Threatened Species. Version 2010. ) Downloaded on 19 June 2010.
* Pala I, Schartl M, Thorsteinsdóttir S, Coelho MM (2009) (Sex Determination in the ''Squalius alburnoides'' Complex: An Initial Characterization of Sex Cascade Elements in the Context of a Hybrid Polyploid Genome ) ''PLoS ONE'' 4(7): e6401.
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抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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