Hyperosmotic tolerance of adult fish and early embryos are determined by discrete, single loci in the genus Oryzias

Abstract The acquisition of environmental osmolality tolerance traits in individuals and gametes is an important event in the evolution and diversification of organisms. Although teleost fish exhibit considerable intra- and interspecific variation in salinity tolerance, the genetic mechanisms underl...

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Autores principales:	Taijun Myosho, Hideya Takahashi, Kento Yoshida, Tadashi Sato, Satoshi Hamaguchi, Tatsuya Sakamoto, Mitsuru Sakaizumi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4f0a8ef43c1848bab1094a4ade33ea42
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spelling	oai:doaj.org-article:4f0a8ef43c1848bab1094a4ade33ea422021-12-02T11:40:45ZHyperosmotic tolerance of adult fish and early embryos are determined by discrete, single loci in the genus Oryzias10.1038/s41598-018-24621-72045-2322https://doaj.org/article/4f0a8ef43c1848bab1094a4ade33ea422018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-24621-7https://doaj.org/toc/2045-2322Abstract The acquisition of environmental osmolality tolerance traits in individuals and gametes is an important event in the evolution and diversification of organisms. Although teleost fish exhibit considerable intra- and interspecific variation in salinity tolerance, the genetic mechanisms underlying this trait remain unclear. Oryzias celebensis survives in sea and fresh water during both the embryonic and adult stages, whereas its close relative Oryzias woworae cannot survive in sea water at either stage. A linkage analysis using backcross progeny identified a single locus responsible for adult hyperosmotic tolerance on a fused chromosome that corresponds to O. latipes linkage groups (LGs) 6 and 23. Conversely, O. woworae eggs fertilised with O. celebensis sperm died in sea water at the cleavage stages, whereas O. celebensis eggs fertilised with O. woworae sperm developed normally, demonstrating that maternal factor(s) from O. celebensis are responsible for hyperosmotic tolerance during early development. A further linkage analysis using backcrossed females revealed a discrete single locus relating to the maternal hyperosmotic tolerance factor in a fused chromosomal region homologous to O. latipes LGs 17 and 19. These results indicate that a maternal factor governs embryonic hyperosmotic tolerance and maps to a locus distinct from that associated with adult hyperosmotic tolerance.Taijun MyoshoHideya TakahashiKento YoshidaTadashi SatoSatoshi HamaguchiTatsuya SakamotoMitsuru SakaizumiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Taijun Myosho Hideya Takahashi Kento Yoshida Tadashi Sato Satoshi Hamaguchi Tatsuya Sakamoto Mitsuru Sakaizumi Hyperosmotic tolerance of adult fish and early embryos are determined by discrete, single loci in the genus Oryzias
description	Abstract The acquisition of environmental osmolality tolerance traits in individuals and gametes is an important event in the evolution and diversification of organisms. Although teleost fish exhibit considerable intra- and interspecific variation in salinity tolerance, the genetic mechanisms underlying this trait remain unclear. Oryzias celebensis survives in sea and fresh water during both the embryonic and adult stages, whereas its close relative Oryzias woworae cannot survive in sea water at either stage. A linkage analysis using backcross progeny identified a single locus responsible for adult hyperosmotic tolerance on a fused chromosome that corresponds to O. latipes linkage groups (LGs) 6 and 23. Conversely, O. woworae eggs fertilised with O. celebensis sperm died in sea water at the cleavage stages, whereas O. celebensis eggs fertilised with O. woworae sperm developed normally, demonstrating that maternal factor(s) from O. celebensis are responsible for hyperosmotic tolerance during early development. A further linkage analysis using backcrossed females revealed a discrete single locus relating to the maternal hyperosmotic tolerance factor in a fused chromosomal region homologous to O. latipes LGs 17 and 19. These results indicate that a maternal factor governs embryonic hyperosmotic tolerance and maps to a locus distinct from that associated with adult hyperosmotic tolerance.
format	article
author	Taijun Myosho Hideya Takahashi Kento Yoshida Tadashi Sato Satoshi Hamaguchi Tatsuya Sakamoto Mitsuru Sakaizumi
author_facet	Taijun Myosho Hideya Takahashi Kento Yoshida Tadashi Sato Satoshi Hamaguchi Tatsuya Sakamoto Mitsuru Sakaizumi
author_sort	Taijun Myosho
title	Hyperosmotic tolerance of adult fish and early embryos are determined by discrete, single loci in the genus Oryzias
title_short	Hyperosmotic tolerance of adult fish and early embryos are determined by discrete, single loci in the genus Oryzias
title_full	Hyperosmotic tolerance of adult fish and early embryos are determined by discrete, single loci in the genus Oryzias
title_fullStr	Hyperosmotic tolerance of adult fish and early embryos are determined by discrete, single loci in the genus Oryzias
title_full_unstemmed	Hyperosmotic tolerance of adult fish and early embryos are determined by discrete, single loci in the genus Oryzias
title_sort	hyperosmotic tolerance of adult fish and early embryos are determined by discrete, single loci in the genus oryzias
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/4f0a8ef43c1848bab1094a4ade33ea42
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Hyperosmotic tolerance of adult fish and early embryos are determined by discrete, single loci in the genus Oryzias

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