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Volumn 252, Issue 2-4, 2006, Pages 147-160

Drastic mortality in tetraploid induction results from the elevation of ploidy in masu salmon Oncorhynchus masou

Author keywords

First cleavage inhibition; Gynogenetic diploidy; Hydrostatic pressure shock; Masu salmon; Mortality; Oncorhynchus masou; Optimum timing; Tetraploidy

Indexed keywords

MORTALITY; POLYPLOIDY; SALMONID CULTURE; VIABILITY;

EID: 32344452168     PISSN: 00448486     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.aquaculture.2005.06.048     Document Type: Article
Times cited : (38)

References (50)
  • 2
    • 0001372035 scopus 로고
    • Developmental capacity of non-nucleated embryos of coho salmon, Oncorhynchus kisutch, induced by γ-irradiation
    • K. Aoyagi, Y. Kojima, and M. Saneyoshi Developmental capacity of non-nucleated embryos of coho salmon, Oncorhynchus kisutch, induced by γ-irradiation Can. J. Zool. 71 1993 185 188
    • (1993) Can. J. Zool. , vol.71 , pp. 185-188
    • Aoyagi, K.1    Kojima, Y.2    Saneyoshi, M.3
  • 3
    • 32344437664 scopus 로고
    • Induced allotriploidy and allotetraploidy between female chum salmon and male Japanese charr by heat shock
    • K. Arai Induced allotriploidy and allotetraploidy between female chum salmon and male Japanese charr by heat shock Fish Genet. Breed. Sci. 18 1992 65 72 (in Japanese)
    • (1992) Fish Genet. Breed. Sci. , vol.18 , pp. 65-72
    • Arai, K.1
  • 4
    • 84985154849 scopus 로고
    • The haematology of triploid landlocked Atlantic salmon, Salmo salar L.
    • T.J. Benfey, and A.M. Sutterlin The haematology of triploid landlocked Atlantic salmon, Salmo salar L. J. Fish Biol. 24 1984 333 338
    • (1984) J. Fish Biol. , vol.24 , pp. 333-338
    • Benfey, T.J.1    Sutterlin, A.M.2
  • 5
    • 0002299083 scopus 로고
    • Polyploidy induced by heat shock in channel catfish
    • C.A. Bidwell, C.L. Chrisman, and G.S. Libey Polyploidy induced by heat shock in channel catfish Aquaculture 51 1985 25 32
    • (1985) Aquaculture , vol.51 , pp. 25-32
    • Bidwell, C.A.1    Chrisman, C.L.2    Libey, G.S.3
  • 6
    • 0001589599 scopus 로고
    • Evaluation of juvenile rainbow trout survival and growth in half-sib families from diploid and tetraploid sires
    • J.M. Blanc, D. Chourrout, and F. Krieg Evaluation of juvenile rainbow trout survival and growth in half-sib families from diploid and tetraploid sires Aquaculture 65 1987 215 220
    • (1987) Aquaculture , vol.65 , pp. 215-220
    • Blanc, J.M.1    Chourrout, D.2    Krieg, F.3
  • 8
    • 0000728259 scopus 로고
    • Pressure-induced retention of second polar body and suppression of first cleavage in rainbow trout: Production of all-triploids, all-tetraploids, and heterozygous and homozygous diploid gynogenetics
    • D. Chourrout Pressure-induced retention of second polar body and suppression of first cleavage in rainbow trout: production of all-triploids, all-tetraploids, and heterozygous and homozygous diploid gynogenetics Aquaculture 36 1984 111 126
    • (1984) Aquaculture , vol.36 , pp. 111-126
    • Chourrout, D.1
  • 9
    • 0001619462 scopus 로고
    • Production of second generation triploid and tetraploid rainbow trout by mating tetraploid males and diploid females - Potential of tetraploid fish
    • D. Chourrout, B. Chevassus, F. Krieg, A. Happe, G. Burger, and P. Renard Production of second generation triploid and tetraploid rainbow trout by mating tetraploid males and diploid females - potential of tetraploid fish Theor. Appl. Genet. 72 1986 193 206
    • (1986) Theor. Appl. Genet. , vol.72 , pp. 193-206
    • Chourrout, D.1    Chevassus, B.2    Krieg, F.3    Happe, A.4    Burger, G.5    Renard, P.6
  • 10
    • 0024066723 scopus 로고
    • Gene segregation in induced tetraploid rainbow trout: Genetic evidence of preferential pairing of homologous chromosomes
    • A. Diter, R. Guyomard, and D. Chourrout Gene segregation in induced tetraploid rainbow trout: genetic evidence of preferential pairing of homologous chromosomes Genome 30 1988 547 553
    • (1988) Genome , vol.30 , pp. 547-553
    • Diter, A.1    Guyomard, R.2    Chourrout, D.3
  • 11
    • 0002838380 scopus 로고
    • Production of viable tetraploid tilapias using the cold shock technique
    • J. Don, and R. Avtalion Production of viable tetraploid tilapias using the cold shock technique Isr. J. Aquac.-Bamidgeh 40 1988 17 21
    • (1988) Isr. J. Aquac.-Bamidgeh , vol.40 , pp. 17-21
    • Don, J.1    Avtalion, R.2
  • 12
    • 0000581852 scopus 로고
    • Genetic studies of tench (Tinca tinca L.): Induced triploidy and tetraploidy and first performance date
    • M. Flajshans, O. Linhart, and P. Kvasnicka Genetic studies of tench (Tinca tinca L.): induced triploidy and tetraploidy and first performance date Aquaculture 113 1993 301 312
    • (1993) Aquaculture , vol.113 , pp. 301-312
    • Flajshans, M.1    Linhart, O.2    Kvasnicka, P.3
  • 13
    • 85013327186 scopus 로고
    • Induction of gynogenetic diploids and cytological studies in honmoroko Gnathopogon caurulescens
    • Y. Fujioka Induction of gynogenetic diploids and cytological studies in honmoroko Gnathopogon caurulescens Nippon Suisan Gakkaishi 59 1993 493 500
    • (1993) Nippon Suisan Gakkaishi , vol.59 , pp. 493-500
    • Fujioka, Y.1
  • 14
    • 0001070061 scopus 로고
    • Production of gynogenetic and polyploid catfish by pressure-induced chromosome set manipulation
    • C.A. Goudie, B.A. Simco, K.B. Davis, and Q. Liu Production of gynogenetic and polyploid catfish by pressure-induced chromosome set manipulation Aquaculture 133 1995 185 198
    • (1995) Aquaculture , vol.133 , pp. 185-198
    • Goudie, C.A.1    Simco, B.A.2    Davis, K.B.3    Liu, Q.4
  • 15
    • 0001164739 scopus 로고
    • Effect of triploidy on blood oxygen content of Atlantic salmon
    • M.S. Graham, G.L. Fletcher, and T.J. Benfey Effect of triploidy on blood oxygen content of Atlantic salmon Aquaculture 50 1985 133 139
    • (1985) Aquaculture , vol.50 , pp. 133-139
    • Graham, M.S.1    Fletcher, G.L.2    Benfey, T.J.3
  • 16
    • 0000148468 scopus 로고
    • Induction of triploidy in Atlantic salmon by heat shock
    • R. Johnstone Induction of triploidy in Atlantic salmon by heat shock Aquaculture 49 1985 133 139
    • (1985) Aquaculture , vol.49 , pp. 133-139
    • Johnstone, R.1
  • 17
    • 0344890332 scopus 로고    scopus 로고
    • Survival and cytological observations on early development of normal, hybrid and gynogenetic embryos of amago salmon
    • T. Kobayashi Survival and cytological observations on early development of normal, hybrid and gynogenetic embryos of amago salmon Fish. Sci. 63 1997 33 36
    • (1997) Fish. Sci. , vol.63 , pp. 33-36
    • Kobayashi, T.1
  • 18
    • 23044437739 scopus 로고    scopus 로고
    • Cytological observations on behavior of the nuclei after chromosome manipulation during early development of rainbow trout
    • T. Kobayashi Cytological observations on behavior of the nuclei after chromosome manipulation during early development of rainbow trout Nippon Suisan Gakkaishi 64 1998 782 791 (in Japanese with English abstract)
    • (1998) Nippon Suisan Gakkaishi , vol.64 , pp. 782-791
    • Kobayashi, T.1
  • 19
    • 0342522865 scopus 로고
    • Oxygen uptake rate and opercular movement arresting and recovery from exhaustive exercise of triploid amago salmon, Oncorhynchus rhodurus
    • T. Kobayashi, K. Hori, S. Fushiki, S. Nakamura, and K. Ueno Oxygen uptake rate and opercular movement arresting and recovery from exhaustive exercise of triploid amago salmon, Oncorhynchus rhodurus Suisan Zoshoku 43 1995 395 400 (in Japanese with English abstract)
    • (1995) Suisan Zoshoku , vol.43 , pp. 395-400
    • Kobayashi, T.1    Hori, K.2    Fushiki, S.3    Nakamura, S.4    Ueno, K.5
  • 20
    • 0000887743 scopus 로고
    • Gynogenesis in common carp (Cyprinus carpio L.) II. the production of homozygous gynogenetic clones and F1 hybrids
    • J. Komen, A.B.J. Bongers, C.J.J. Richter, W.B.V. Muiswinkel, and E.A. Huisman Gynogenesis in common carp (Cyprinus carpio L.) II. The production of homozygous gynogenetic clones and F1 hybrids Aquaculture 92 1991 127 142
    • (1991) Aquaculture , vol.92 , pp. 127-142
    • Komen, J.1    Bongers, A.B.J.2    Richter, C.J.J.3    Muiswinkel, W.B.V.4    Huisman, E.A.5
  • 21
    • 32344437072 scopus 로고    scopus 로고
    • Cytological observations on nuclear behavior in normal and gynogenetic eggs of the Pacific oyster, Crassostrea gigas
    • Q. Li, M. Osada, M. Kashihara, K. Hirohashi, and A. Kijima Cytological observations on nuclear behavior in normal and gynogenetic eggs of the Pacific oyster, Crassostrea gigas Suisan Zoshoku 48 2000 193 198
    • (2000) Suisan Zoshoku , vol.48 , pp. 193-198
    • Li, Q.1    Osada, M.2    Kashihara, M.3    Hirohashi, K.4    Kijima, A.5
  • 22
    • 1842403586 scopus 로고    scopus 로고
    • Androgenesis and homozygous gynogenesis in muskellunge (Esox masquinongy): Evaluation using flow cytometry
    • F. Lin, and K. Dabrowski Androgenesis and homozygous gynogenesis in muskellunge (Esox masquinongy): evaluation using flow cytometry Mol. Reprod. Dev. 49 1998 10 18
    • (1998) Mol. Reprod. Dev. , vol.49 , pp. 10-18
    • Lin, F.1    Dabrowski, K.2
  • 23
    • 84988997265 scopus 로고
    • Induced triploidy in the common carp (Cyprinus carpio L.): A comparison of two methods
    • O. Linhart, M. Flajshans, and P. Kvasnicka Induced triploidy in the common carp (Cyprinus carpio L.): a comparison of two methods Aquat. Living Resour. 4 1991 139 145
    • (1991) Aquat. Living Resour. , vol.4 , pp. 139-145
    • Linhart, O.1    Flajshans, M.2    Kvasnicka, P.3
  • 24
    • 84985097635 scopus 로고
    • Diploid gynogenesis induced by hydrostatic pressure in rainbow trout, Salmo gairdneri Richardson
    • Y.D. Lou, and C.E. Purdom Diploid gynogenesis induced by hydrostatic pressure in rainbow trout, Salmo gairdneri Richardson J. Fish Biol. 24 1984 665 670
    • (1984) J. Fish Biol. , vol.24 , pp. 665-670
    • Lou, Y.D.1    Purdom, C.E.2
  • 25
    • 0021539836 scopus 로고
    • Polyploidy induced by hydrostatic pressure in rainbow trout, Salmo gairdneri Richardson
    • Y.D. Lou, and C.E. Purdom Polyploidy induced by hydrostatic pressure in rainbow trout, Salmo gairdneri Richardson J. Fish Biol. 25 1984 345 351
    • (1984) J. Fish Biol. , vol.25 , pp. 345-351
    • Lou, Y.D.1    Purdom, C.E.2
  • 26
    • 0034797914 scopus 로고    scopus 로고
    • Manipulation of ploidy in walleyes by heat shock and hydrostatic pressure shock
    • J.A. Malison, J.A. Held, L.S. Weil, T.B. Kayes, and G.H. Thorgaard Manipulation of ploidy in walleyes by heat shock and hydrostatic pressure shock N. Am. J. Aquac. 63 2001 17 24
    • (2001) N. Am. J. Aquac. , vol.63 , pp. 17-24
    • Malison, J.A.1    Held, J.A.2    Weil, L.S.3    Kayes, T.B.4    Thorgaard, G.H.5
  • 27
    • 0000538070 scopus 로고
    • Tetraploid induction in Oreochromis spp
    • J.M. Myers Tetraploid induction in Oreochromis spp Aquaculture 57 1986 281 287
    • (1986) Aquaculture , vol.57 , pp. 281-287
    • Myers, J.M.1
  • 28
    • 0006129486 scopus 로고
    • Diploid gynogenesis induced by suppression of the second or third cleavage in the goldfish, Carassius auratus
    • H. Nagoya, T. Kimoto, and H. Onozato Diploid gynogenesis induced by suppression of the second or third cleavage in the goldfish, Carassius auratus Bull. Natl. Res. Inst. Aquacult. (Jpn.) 18 1990 1 6 (in Japanese with English abstract)
    • (1990) Bull. Natl. Res. Inst. Aquacult. (Jpn.) , vol.18 , pp. 1-6
    • Nagoya, H.1    Kimoto, T.2    Onozato, H.3
  • 29
    • 0001542071 scopus 로고    scopus 로고
    • Blocking the 1st cleavage in mud loach, Misgurnus mizolepis
    • Y.K. Nam, G.C. Choi, and D.S. Kim Blocking the 1st cleavage in mud loach, Misgurnus mizolepis J. Aquac. 12 1999 167 173
    • (1999) J. Aquac. , vol.12 , pp. 167-173
    • Nam, Y.K.1    Choi, G.C.2    Kim, D.S.3
  • 30
    • 1142281978 scopus 로고    scopus 로고
    • An efficient method for blocking the 1st mitotic cleavage of fish zygote using combined-thermal treatment, exemplified by mud loach (Misgurnus mizolepis)
    • Y.K. Nam, G.C. Choi, and D.S. Kim An efficient method for blocking the 1st mitotic cleavage of fish zygote using combined-thermal treatment, exemplified by mud loach (Misgurnus mizolepis) Theriogenology 61 2004 933 945
    • (2004) Theriogenology , vol.61 , pp. 933-945
    • Nam, Y.K.1    Choi, G.C.2    Kim, D.S.3
  • 31
    • 32344444875 scopus 로고
    • Artificial polyploidization in fishes and its application in aquaculture
    • H. Onozato Artificial polyploidization in fishes and its application in aquaculture Fish Genet. Breed. Sci. 8 1983 17 29 (in Japanese)
    • (1983) Fish Genet. Breed. Sci. , vol.8 , pp. 17-29
    • Onozato, H.1
  • 32
    • 84996324932 scopus 로고
    • Induction of gynogenesis with ultraviolet rays in four species of salmoniformes
    • H. Onozato, and E. Yamaha Induction of gynogenesis with ultraviolet rays in four species of salmoniformes Bull. Jpn. Soc. Sci. Fish 49 1983 693 699 (in Japanese with English abstract)
    • (1983) Bull. Jpn. Soc. Sci. Fish , vol.49 , pp. 693-699
    • Onozato, H.1    Yamaha, E.2
  • 33
    • 85008140083 scopus 로고
    • Cytological studies on diploid gynogenesis induced in the loach Misgurnus anguillicaudatus
    • T. Oshiro Cytological studies on diploid gynogenesis induced in the loach Misgurnus anguillicaudatus Nippon Suisan Gakkaishi 53 1987 933 939 (in Japanese with English abstract)
    • (1987) Nippon Suisan Gakkaishi , vol.53 , pp. 933-939
    • Oshiro, T.1
  • 34
    • 0032463793 scopus 로고    scopus 로고
    • Ploidy induction and sex control in fish
    • T.J. Pandian, and R. Koteeswaran Ploidy induction and sex control in fish Hydrobiologia 384 1998 167 243
    • (1998) Hydrobiologia , vol.384 , pp. 167-243
    • Pandian, T.J.1    Koteeswaran, R.2
  • 35
    • 46549092078 scopus 로고
    • Genetic engineering in rainbow trout, Salmo gairdnerii Richardson, by the suppression of meiotic and mitotic metaphase
    • C.E. Purdom, D. Thompson, and Y.D. Lou Genetic engineering in rainbow trout, Salmo gairdnerii Richardson, by the suppression of meiotic and mitotic metaphase J. Fish Biol. 27 1985 73 79
    • (1985) J. Fish Biol. , vol.27 , pp. 73-79
    • Purdom, C.E.1    Thompson, D.2    Lou, Y.D.3
  • 36
    • 0003281015 scopus 로고
    • Preliminary observations on induced polyploidy in Indian major carp, Labeo rohita (Ham.) and Catla catla (Ham.)
    • P.V.G.K. Reddy, G.V. Kowtal, and M.S. Tantia Preliminary observations on induced polyploidy in Indian major carp, Labeo rohita (Ham.) and Catla catla (Ham.) Aquaculture 87 1990 279 287
    • (1990) Aquaculture , vol.87 , pp. 279-287
    • Reddy, P.V.G.K.1    Kowtal, G.V.2    Tantia, M.S.3
  • 37
    • 0033616551 scopus 로고    scopus 로고
    • Variation in development rate among clonal lines of rainbow trout (Oncorhynchus mykiss)
    • B.D. Robison, P.A. Wheeler, and G.H. Thorgaard Variation in development rate among clonal lines of rainbow trout (Oncorhynchus mykiss) Aquaculture 173 1999 131 141
    • (1999) Aquaculture , vol.173 , pp. 131-141
    • Robison, B.D.1    Wheeler, P.A.2    Thorgaard, G.H.3
  • 38
    • 0034678863 scopus 로고    scopus 로고
    • Blood oxygen transport, rheology and haematological responses to confinement stress in diploid and triploid Atlantic salmon, Salmo salar
    • J. Sadler, R.M.G. Wells, P.M. Pankhurst, and N.W. Pankhurst Blood oxygen transport, rheology and haematological responses to confinement stress in diploid and triploid Atlantic salmon, Salmo salar Aquaculture 184 2000 349 361
    • (2000) Aquaculture , vol.184 , pp. 349-361
    • Sadler, J.1    Wells, R.M.G.2    Pankhurst, P.M.3    Pankhurst, N.W.4
  • 39
    • 0345099488 scopus 로고    scopus 로고
    • Aberrant and arrested embryos from masu salmon eggs treated for tetraploidization by inhibition of the first cleavage
    • S. Sakao, T. Fujimoto, M. Tanaka, E. Yamaha, and K. Arai Aberrant and arrested embryos from masu salmon eggs treated for tetraploidization by inhibition of the first cleavage Nippon Suisan Gakkaishi 69 2003 738 748 (in Japanese with English abstract)
    • (2003) Nippon Suisan Gakkaishi , vol.69 , pp. 738-748
    • Sakao, S.1    Fujimoto, T.2    Tanaka, M.3    Yamaha, E.4    Arai, K.5
  • 40
    • 85010159260 scopus 로고
    • A comparison of chemical composition between diploids and triploids of 'ginbuna' Carassius auratus langsdorfi
    • K. Sezaki, S. Watabe, and K. Hashimoto A comparison of chemical composition between diploids and triploids of 'ginbuna' Carassius auratus langsdorfi Bull. Jpn. Soc. Sci. Fish. 49 1983 97 101
    • (1983) Bull. Jpn. Soc. Sci. Fish. , vol.49 , pp. 97-101
    • Sezaki, K.1    Watabe, S.2    Hashimoto, K.3
  • 41
    • 48549112518 scopus 로고
    • Induction of triploidy in rainbow trout (Salmo gairdneri Richardson) by heat shock, and investigation of early growth
    • I.I. Solar, E.M. Donaldson, and G.A. Hunter Induction of triploidy in rainbow trout (Salmo gairdneri Richardson) by heat shock, and investigation of early growth Aquaculture 42 1984 57 67
    • (1984) Aquaculture , vol.42 , pp. 57-67
    • Solar, I.I.1    Donaldson, E.M.2    Hunter, G.A.3
  • 42
    • 0344890333 scopus 로고    scopus 로고
    • Enucleation of visualized nuclei from dechorionated fertilized eggs in goldfish
    • M. Suzuki, E. Yamaha, and F. Yamazaki Enucleation of visualized nuclei from dechorionated fertilized eggs in goldfish Fish. Sci. 63 1997 474 475
    • (1997) Fish. Sci. , vol.63 , pp. 474-475
    • Suzuki, M.1    Yamaha, E.2    Yamazaki, F.3
  • 43
    • 0001147437 scopus 로고
    • Effect of triploidy on the body size, general organization and cellular structure in Gasterosteus aculeatus (L.)
    • H. Swarup Effect of triploidy on the body size, general organization and cellular structure in Gasterosteus aculeatus (L.) J. Genet. 56 1959 143 155
    • (1959) J. Genet. , vol.56 , pp. 143-155
    • Swarup, H.1
  • 44
    • 0017105795 scopus 로고
    • Cell size and nuclear DNA content in vertebrates
    • H. Szarski Cell size and nuclear DNA content in vertebrates Int. Rev. Cyt. 44 1976 93 111
    • (1976) Int. Rev. Cyt. , vol.44 , pp. 93-111
    • Szarski, H.1
  • 45
    • 0001179578 scopus 로고
    • Androgenetic rainbow trout produced using sperm from tetraploid males show improved survival
    • G.H. Thorgaard, P.D. Scheerer, W.K. Hershberger, and J.M. Myers Androgenetic rainbow trout produced using sperm from tetraploid males show improved survival Aquaculture 85 1990 215 221
    • (1990) Aquaculture , vol.85 , pp. 215-221
    • Thorgaard, G.H.1    Scheerer, P.D.2    Hershberger, W.K.3    Myers, J.M.4
  • 46
    • 0032439072 scopus 로고    scopus 로고
    • Production of androgenetic haploids in zebrafish with ultraviolet light
    • A.R. Ungar, K.A. Helde, and R.T. Moon Production of androgenetic haploids in zebrafish with ultraviolet light Mol. Mar. Biol. Biotechnol. 7 1998 320 326
    • (1998) Mol. Mar. Biol. Biotechnol. , vol.7 , pp. 320-326
    • Ungar, A.R.1    Helde, K.A.2    Moon, R.T.3
  • 47
    • 17044460651 scopus 로고    scopus 로고
    • Induction of diploid gynogenesis using interspecific sperm and production of tetraploids in African catfish, Clarias gariepinus Burchell (1822)
    • L. Varadi, I. Benko, J. Varga, and L. Horvath Induction of diploid gynogenesis using interspecific sperm and production of tetraploids in African catfish, Clarias gariepinus Burchell (1822) Aquaculture 173 1999 401 411
    • (1999) Aquaculture , vol.173 , pp. 401-411
    • Varadi, L.1    Benko, I.2    Varga, J.3    Horvath, L.4
  • 48
    • 0025372729 scopus 로고
    • Triploidy decreases the aerobic swimming capacity of rainbow trout (Salmo gairdneri)
    • E. Virtanen, L. Forsman, and A. Sundby Triploidy decreases the aerobic swimming capacity of rainbow trout (Salmo gairdneri) Comp. Biochem. Physiol. 96A 1990 117 121
    • (1990) Comp. Biochem. Physiol. , vol.96 , pp. 117-121
    • Virtanen, E.1    Forsman, L.2    Sundby, A.3
  • 49
    • 38249005888 scopus 로고
    • Cytogenetic effects of hydrostatic pressure treatment to suppress the first cleavage of salmon embryos
    • F. Yamazaki, and J. Goodier Cytogenetic effects of hydrostatic pressure treatment to suppress the first cleavage of salmon embryos Aquaculture 110 1993 51 59
    • (1993) Aquaculture , vol.110 , pp. 51-59
    • Yamazaki, F.1    Goodier, J.2
  • 50
    • 4744374994 scopus 로고    scopus 로고
    • Hydrostatic pressure treatment during the first cleavage mitosis does not suppress the first cleavage but the second one
    • X. Zhang, and H. Onozato Hydrostatic pressure treatment during the first cleavage mitosis does not suppress the first cleavage but the second one Aquaculture 240 2004 101 113
    • (2004) Aquaculture , vol.240 , pp. 101-113
    • Zhang, X.1    Onozato, H.2


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