Identification and mapping of genes associated with salt tolerance in tilapia
Identifieur interne : 000E76 ( Istex/Curation ); précédent : 000E75; suivant : 000E77Identification and mapping of genes associated with salt tolerance in tilapia
Auteurs : A. H. Rengmark [Norvège] ; A. Slettan [Norvège] ; W. J. Lee [Norvège] ; Lie [Norvège] ; F. Lingaas [Norvège]Source :
- Journal of Fish Biology [ 0022-1112 ] ; 2007-12.
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Abstract
This paper describes the finding of genes displaying differential expression in Nile tilapia (Oreochromis niloticus) adapted to saltwater and discusses their potential involvement in saltwater tolerance. The availability of fresh water is severely limited in many countries; therefore, the use of brackish‐water areas may present an opportunity to expand the tilapia aquaculture industry. Increased knowledge of genes involved in saltwater tolerance will facilitate selection for this trait in tilapia. A set of fish from four different families of Nile tilapia was divided into two freshwater containers, the different families equally represented in the two experimental groups, and salinity was gradually increased in one of them. A differential expression study identified a number of genes expressed differently in saltwater and fresh water. Based on these expression analyses and on a judgement of potential candidate genes probably to be involved in adaptation to changes in salinity, four genes were selected and their levels of expression further analysed by real‐time polymerase chain reaction. The selected genes beta haemoglobin, Ca2+ transporting plasma membrane ATPase, pro‐opiomelanocortin and beta‐actin showed changes in expression. The genes were mapped and assigned to an already existing, high‐resolution linkage map.
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DOI: 10.1111/j.1095-8649.2007.01664.x
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Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo</wicri:regionArea></affiliation></author><author><name sortKey="Slettan, A" sort="Slettan, A" uniqKey="Slettan A" first="A." last="Slettan">A. Slettan</name><affiliation wicri:level="1"><mods:affiliation>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo, Norway</mods:affiliation><country xml:lang="fr">Norvège</country><wicri:regionArea>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo</wicri:regionArea></affiliation></author><author><name sortKey="Lee, W J" sort="Lee, W J" uniqKey="Lee W" first="W. J." last="Lee">W. J. Lee</name><affiliation wicri:level="1"><mods:affiliation>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo, Norway</mods:affiliation><country xml:lang="fr">Norvège</country><wicri:regionArea>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. 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H." last="Rengmark">A. H. Rengmark</name><affiliation wicri:level="1"><mods:affiliation>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo, Norway</mods:affiliation><country xml:lang="fr">Norvège</country><wicri:regionArea>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo</wicri:regionArea></affiliation></author><author><name sortKey="Slettan, A" sort="Slettan, A" uniqKey="Slettan A" first="A." last="Slettan">A. Slettan</name><affiliation wicri:level="1"><mods:affiliation>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo, Norway</mods:affiliation><country xml:lang="fr">Norvège</country><wicri:regionArea>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo</wicri:regionArea></affiliation></author><author><name sortKey="Lee, W J" sort="Lee, W J" uniqKey="Lee W" first="W. J." last="Lee">W. J. Lee</name><affiliation wicri:level="1"><mods:affiliation>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo, Norway</mods:affiliation><country xml:lang="fr">Norvège</country><wicri:regionArea>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo</wicri:regionArea></affiliation></author><author><name sortKey="Lie, " sort="Lie, " uniqKey="Lie " first="" last="Lie"> Lie</name><affiliation wicri:level="1"><mods:affiliation>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo, Norway</mods:affiliation><country xml:lang="fr">Norvège</country><wicri:regionArea>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo</wicri:regionArea></affiliation></author><author><name sortKey="Lingaas, F" sort="Lingaas, F" uniqKey="Lingaas F" first="F." last="Lingaas">F. Lingaas</name><affiliation wicri:level="1"><mods:affiliation>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo, Norway</mods:affiliation><country xml:lang="fr">Norvège</country><wicri:regionArea>* Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, P. O. Box 8146 Dep, N‐0033 Oslo, Norway , † Department of Natural Sciences, Agder University College, Serviceboks 422, N‐4604 Kristiansand, Norway and ‡ GenoMar asa, Oslo Research Park, Gaustadalléen 21, N‐0349 Oslo</wicri:regionArea></affiliation><affiliation wicri:level="1"><mods:affiliation>E-mail: frode.lingaas@veths.no</mods:affiliation><country wicri:rule="url">Norvège</country></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Fish Biology</title><idno type="ISSN">0022-1112</idno><idno type="eISSN">1095-8649</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2007-12">2007-12</date><biblScope unit="volume">71</biblScope><biblScope unit="supplement">sc</biblScope><biblScope unit="page" from="409">409</biblScope><biblScope unit="page" to="422">422</biblScope></imprint><idno type="ISSN">0022-1112</idno></series><idno type="istex">E75272F95D392531A0030E428C8979E84F61DB36</idno><idno type="DOI">10.1111/j.1095-8649.2007.01664.x</idno><idno type="ArticleID">JFB1664</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-1112</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Nile tilapia</term><term>Oreochromis niloticus</term><term>differentially expressed genes</term><term>saltwater tolerance</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This paper describes the finding of genes displaying differential expression in Nile tilapia (Oreochromis niloticus) adapted to saltwater and discusses their potential involvement in saltwater tolerance. The availability of fresh water is severely limited in many countries; therefore, the use of brackish‐water areas may present an opportunity to expand the tilapia aquaculture industry. Increased knowledge of genes involved in saltwater tolerance will facilitate selection for this trait in tilapia. A set of fish from four different families of Nile tilapia was divided into two freshwater containers, the different families equally represented in the two experimental groups, and salinity was gradually increased in one of them. A differential expression study identified a number of genes expressed differently in saltwater and fresh water. Based on these expression analyses and on a judgement of potential candidate genes probably to be involved in adaptation to changes in salinity, four genes were selected and their levels of expression further analysed by real‐time polymerase chain reaction. The selected genes beta haemoglobin, Ca2+ transporting plasma membrane ATPase, pro‐opiomelanocortin and beta‐actin showed changes in expression. The genes were mapped and assigned to an already existing, high‐resolution linkage map.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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