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אסיף מאגר המחקר החקלאי
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Association between polymorphism in the Prolactin I promoter and growth of tilapia in saline-water
Year:
2015
Source of publication :
Aquaculture Reports
Authors :
Cnaani, Avner
;
.
Hulata, Gideon
;
.
Ron, Micha
;
.
Shirak, Andrey
;
.
Slosman, Tatiyana
;
.
Velan, Ariel
;
.
Volume :
1
Co-Authors:
Velan, A., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Hulata, G., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Ron, M., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Slosman, T., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Shirak, A., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Cnaani, A., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Facilitators :
From page:
5
To page:
9
(
Total pages:
5
)
Abstract:
Abstract Tilapias are a group of species with a variable tolerance to high salinity, which are cultured worldwide in fresh, brackish and seawater. Prolactin I (PRL I) is known as a key hormone in osmoregulatory physiological pathways. A previous study, conducted in a single family, reported on association between polymorphism in a repetitive element within the promoter of the PRL I gene and growth rate of tilapia in saline water. This study was aiming to further validate this association in a larger sample size, and was conducted in nine families over two consecutive breeding seasons. We have confirmed this association in the three F2 families of Oreochromis mossambicus × Oreochromis niloticus hybrids challenged in the first year. The same pattern of improved growth for genotypes with shorter alleles originating from the O. niloticus grand-parental fish, although O. mossambicus is considered to be a more salt tolerant species, was demonstrated. The effects accounted for 13-15% of the phenotypic variance for growth rate (P < 0.05). In the six families from the second spawning season there was no association between the gene polymorphism and the fish growth in saline water. No association was evident between the polymorphism in the PRL I promoter and the expression of the gene. © 2015 The Authors.
Note:
Related Files :
Microsatellite
Oreochromis mossambicus
Oreochromis niloticus
PRL
Repetitive elements
Salinity tolerance
Tilapia
Show More
Related Content
More details
DOI :
10.1016/j.aqrep.2015.03.001
Article number:
4
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
31402
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:02
You may also be interested in
Scientific Publication
Association between polymorphism in the Prolactin I promoter and growth of tilapia in saline-water
1
Velan, A., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Hulata, G., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Ron, M., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Slosman, T., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Shirak, A., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Cnaani, A., Institute of Animal Science, Agricultural Research Organization, Bet Dagan, Israel
Association between polymorphism in the Prolactin I promoter and growth of tilapia in saline-water
Abstract Tilapias are a group of species with a variable tolerance to high salinity, which are cultured worldwide in fresh, brackish and seawater. Prolactin I (PRL I) is known as a key hormone in osmoregulatory physiological pathways. A previous study, conducted in a single family, reported on association between polymorphism in a repetitive element within the promoter of the PRL I gene and growth rate of tilapia in saline water. This study was aiming to further validate this association in a larger sample size, and was conducted in nine families over two consecutive breeding seasons. We have confirmed this association in the three F2 families of Oreochromis mossambicus × Oreochromis niloticus hybrids challenged in the first year. The same pattern of improved growth for genotypes with shorter alleles originating from the O. niloticus grand-parental fish, although O. mossambicus is considered to be a more salt tolerant species, was demonstrated. The effects accounted for 13-15% of the phenotypic variance for growth rate (P < 0.05). In the six families from the second spawning season there was no association between the gene polymorphism and the fish growth in saline water. No association was evident between the polymorphism in the PRL I promoter and the expression of the gene. © 2015 The Authors.
Scientific Publication
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