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Negrín-Báez D, Navarro A, Afonso JM, Toro MA, Zamorano MJ. Quantitative trait loci for a neurocranium deformity, lack of operculum, in gilthead seabream (Sparus aurataL.). Anim Genet 2016; 47:230-3. [DOI: 10.1111/age.12397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2015] [Indexed: 11/29/2022]
Affiliation(s)
- D. Negrín-Báez
- Universidad de Las Palmas de Gran Canaria (ULPGC); Grupo de Investigación en Acuicultura (GIA); Carretera Trasmontaña s/n 35413 Arucas Las Palmas Spain
| | - A. Navarro
- Universidad de Las Palmas de Gran Canaria (ULPGC); Grupo de Investigación en Acuicultura (GIA); Carretera Trasmontaña s/n 35413 Arucas Las Palmas Spain
| | - J. M. Afonso
- Universidad de Las Palmas de Gran Canaria (ULPGC); Grupo de Investigación en Acuicultura (GIA); Carretera Trasmontaña s/n 35413 Arucas Las Palmas Spain
| | - M. A. Toro
- Universidad Politécnica de Madrid; ETS Ingenieros Agrómos; Ciudad Universitaria; 28040 Madrid Spain
| | - M. J. Zamorano
- Universidad de Las Palmas de Gran Canaria (ULPGC); Grupo de Investigación en Acuicultura (GIA); Carretera Trasmontaña s/n 35413 Arucas Las Palmas Spain
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Lee-Montero I, Navarro A, Negrín-Báez D, Zamorano MJ, Borrell Pichs YJ, Berbel C, Sánchez JA, García-Celdran M, Manchado M, Estévez A, Armero E, Afonso JM. Genetic parameters and genotype-environment interactions for skeleton deformities and growth traits at different ages on gilthead seabream (Sparus aurata L.) in four Spanish regions. Anim Genet 2015; 46:164-74. [PMID: 25662001 DOI: 10.1111/age.12258] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2014] [Indexed: 11/29/2022]
Abstract
One of the most important problems of fish aquaculture is the high incidence of fish deformities, which are mainly skeletal. In this study, genetic parameters on gilthead seabream (Sparus aurata L.) for skeleton deformities at different ages (179, 269, 389, 539 and 689 days) and their correlations with growth traits were estimated, as were as their genotype × environment interactions (G × E) at harvesting age. A total of 4093 offspring from the mass spawning of three industrial broodstocks belonging to the PROGENSA(®) breeding programme were mixed and on-grown by different production systems in four Spanish regions: Canary Islands (tanks and cage), Andalusia (estuary), Catalonia (cage) and Murcia (cage). Parental assignment was inferred using the standardized SMsa1 microsatellite multiplex PCR. From three broodstocks, 139 breeders contributed to the spawn and a total of 297 full-sibling families (52 paternal and 53 maternal half-sibling families) were represented. Heritabilities at different ages were medium for growth traits (0.16-0.48) and vertebral deformities (0.16-0.41), and low for any type of deformity (0.07-0.26), head deformities (0.00-0.05) and lack of operculum (0.06-0.11). The genetic correlations between growth and deformity traits were medium and positive, suggesting that to avoid increasing deformities they should be taken into account in breeding programmes when growth is selected. The G × E interactions among the different facilities were weak for length and deformity and strong for growth rate during this period. These results highlight the potential for the gilthead seabream industry to reduce the prevalence of deformities by genetic improvement tools.
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Affiliation(s)
- I Lee-Montero
- Universidad de Las Palmas de Gran Canaria (ULPGC), Grupo de Investigación en Acuicultura (GIA), Carretera Trasmontaña s/n, 35413, Arucas, Las Palmas, Spain; Centro Acuícola y Pesquero de Investigación Aplicada (CAPIA), Universidad Santo Tomás, Buena Vecindad 101, Puerto Montt, Chile
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Negrín-Báez D, Navarro A, Lee-Montero I, Soula M, Afonso JM, Zamorano MJ. Inheritance of skeletal deformities in gilthead seabream (Sparus aurata) – lack of operculum, lordosis, vertebral fusion and LSK complex1. J Anim Sci 2015; 93:53-61. [DOI: 10.2527/jas.2014-7968] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lee-Montero I, Navarro A, Borrell Y, García-Celdrán M, Martín N, Negrín-Báez D, Blanco G, Armero E, Berbel C, Zamorano MJ, Sánchez JJ, Estévez A, Ramis G, Manchado M, Afonso JM. Development of the first standardised panel of two new microsatellite multiplex PCRs for gilthead seabream (Sparus aurata L.). Anim Genet 2013; 44:533-46. [PMID: 23574152 DOI: 10.1111/age.12037] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2013] [Indexed: 11/30/2022]
Abstract
The high number of multiplex PCRs developed for gilthead seabream (Sparus aurata L.) from many different microsatellite markers does not allow comparison among populations. This highlights the need for developing a reproducible panel of markers, which can be used with safety and reliability by all users. In this study, the first standardised panel of two new microsatellite multiplex PCRs was developed for this species. Primers of 138 specific microsatellites from the genetic linkage map were redesigned and evaluated according to their genetic variability, allele size range and genotyping reliability. A protocol to identify and classify genotyping errors or potential errors was proposed to assess the reliability of each marker. Two new multiplex PCRs from the best assessed markers were designed with 11 markers in each, named SMsa1 and SMsa2 (SuperMultiplex Sparus aurata). Three broodstocks (59, 47 and 98 breeders) from different Spanish companies, and a sample of 80 offspring from each one, were analysed to validate the usefulness of these multiplexes in the parental assignation. It was possible to assign each offspring to a single parent pair (100% success) using the exclusion method with SMsa1 and/or SMsa2. In each genotyped a reference sample (Ref-sa) was used, and its DNA is available on request similar to the kits of bin set to genotype by genemapper (v.3.7) software (kit-SMsa1 and kit-SMsa2). This will be a robust and effective tool for pedigree analysis or characterisation of populations and will be proposed as an international panel for this species.
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Affiliation(s)
- I Lee-Montero
- Grupo de Investigación en Acuicultura, Instituto Universitario de Sanidad Animal y Seguridad Alimentaria, Instituto Canario de Ciencias Marinas, Universidad de Las Palmas de Gran Canaria, Carretera Trasmontaña s/n, Arucas, Las Palmas, Spain
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Argüello A, Fabelo F, Capote J, Ginés R, Afonso JM, López JL. Carcass Composition of Canary Caprine Group at Adult Age. Journal of Applied Animal Research 2011. [DOI: 10.1080/09712119.1999.9706234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Montero D, Mathlouthi F, Tort L, Afonso JM, Torrecillas S, Fernández-Vaquero A, Negrin D, Izquierdo MS. Replacement of dietary fish oil by vegetable oils affects humoral immunity and expression of pro-inflammatory cytokines genes in gilthead sea bream Sparus aurata. Fish Shellfish Immunol 2010; 29:1073-1081. [PMID: 20817101 DOI: 10.1016/j.fsi.2010.08.024] [Citation(s) in RCA: 104] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Revised: 08/19/2010] [Accepted: 08/30/2010] [Indexed: 05/29/2023]
Abstract
Commercial gilthead sea bream feeds are highly energetic, fish oil traditionally being the main lipid source. But the decreased fish oil production together with the increased prices of this oil encourages its substitution by vegetable oils, imposing new nutritional habits to aquaculture species. Partial replacement of fish oil by vegetable oils in diets for marine species allows good feed utilization and growth but may affect fish health, since imbalances in dietary fatty acids may alter fish immunological status. The effect of dietary oils on different aspects of fish immune system has been reported for some species, but very little is known about the effect of dietary oils on immune-related genes expression in fish. Thus, the objective of this study was to elucidate the role of dietary oils on the expression of two pro-inflammatory cytokines, Tumor Necrosis Factor-α (TNF-α) and Interleukine 1β (IL-1β) on intestine and head kidney after exposure to the bacterial pathogen Photobacterium damselae sp. piscicida. For that purpose, 5 iso-nitrogenous and iso-lipidic diets (45% crude protein, 22% crude lipid content) were formulated. Anchovy oil was the only lipid source used in the control diet (FO), but in the other diets, fish oil was totally (100%) or partially (70%) substituted by linseed (rich in n-3 fatty acids) or soybean (rich in n-6 fatty acids) (100L, 100S, 70L, 70S). Fish were fed experimental diets during 80 days and after this period were exposed to an experimental intestinal infection with the pathogen. Serum and tissue samples were obtained at pre-infection and after 1, 3 and 7 days of infection. RNA was extracted and cDNA was synthesized by reverse transcription from intestine and head kidney and the level expression of TNF-α and IL-1β were assayed by using quantitative real time PCR. The expression level of genes analysed was represented as relative value, using the comparative Ct method (2(-ΔΔCt)). Serum anti-bacterial activity was measured as serum bactericidal capacity and lysozyme activity. Reduction of FO tends to reduce basal (pre-infection) genetic expression of both cytokines. However, complete FO replacement caused an over expression of both pro-inflammatory cytokines, particularly after 3 days of induced infection in fish fed soybean oil based diets. On the other hand, fish fed diets with low content of n-6 fatty acids showed better serum bactericidal capacity after infection, suggesting that the substitution of fish oil by vegetable oils containing high levels of n-6 fatty acids may induce imbalances on fish immune response, leading to a lower potential response against infections.
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Affiliation(s)
- D Montero
- Universidad de Las Palmas de Gran Canaria (ULPGC), Instituto Canario de Ciencias Marinas (ICCM), Las Palmas, Canary Islands, Spain.
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Palma M, Afonso JM, Ginés R, López JL. A HpaII polymorphism in goat mitochondrial DNA. Anim Genet 1997; 28:317-8. [PMID: 9345741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- M Palma
- Department of Animal Production, University of Las Palmas de Gran Canaria, Canary Islands, Spain
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Afonso JM, Volz A, Hernandez M, Ruttkay H, Gonzalez M, Larruga JM, Cabrera VM, Sperlich D. Mitochondrial DNA variation and genetic structure in Old-World populations of Drosophila subobscura. Mol Biol Evol 1990; 7:123-42. [PMID: 1969605 DOI: 10.1093/oxfordjournals.molbev.a040590] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
To discover the relation between mitochondrial DNA (mtDNA) polymorphism and the geographic population structure of Drosophila subobscura previously established for other genetic traits, a wide Paleartic survey was carried out. A total of 24 nucleomorphs was observed among 261 isofemale lines assayed by 11 restriction endonucleases with 38 different sites in the mtDNA cleavage map. The differentiation of the Canary Islands populations (delta = 0.0119) compared with the mean among all the other continental and insular populations (delta = 0.0002) is striking. Both the great divergence among Canary Islands nucleomorphs (delta = 0.021) compared with the maximum nucleomorph distance in all other populations (delta = 0.017) and the abundance of endemic nucleomorphs (11) on the Canary Islands (50% of the total number of different nucleomorphs found in the entire distribution area) suggest that this molecular differentiation most probably results from the very old age of the Canary Islands populations rather than from drift and founder effects.
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Affiliation(s)
- J M Afonso
- Department of Genetics, University of La Laguna, Canary Islands
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Afonso JM, Hernández M, Larruga JM, Cabrera VM, González AM. Human enzyme polymorphism in the Canary Islands. III. Tenerife Island population. Hum Biol 1989; 61:543-9. [PMID: 2591912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We analyzed the genetic polymorphism of eight red cell enzymes in samples from different geographical areas of Tenerife and the Iberian peninsula. The gene frequency heterogeneity found within the Tenerife samples was at the same level as that of Tenerife-mainland comparisons. The presence of the Negroid G6PD A+ allele in the Tenerife samples is evidence of an African admixture with a mean estimation of 4.5%.
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Affiliation(s)
- J M Afonso
- Department of Genetics, Faculty of Biology, University of La Laguna, Tenerife, Canary Islands, Spain
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Abstract
The genetic polymorphism of eight red cell enzymes was examined in three samples from Gran Canaria and one from Equatorial Guinea. The presence of African genes in the Gran Canaria population showed an African admixture estimated to 6-9%. The genetic distance between Gran Canaria and Equatorial Guinea was 0.033, and that between Gran Canaria and the Spanish mainland only 0.007.
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Affiliation(s)
- J M Morilla
- Departamento de Genética, Facultad de Biología, Universidad de la Laguna, Islas Canarias, España
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Göthlin JH, Afonso JM, Høiem L. Simplifying radiological examinations. Can it really be done in urography? Eur J Radiol 1986; 6:85-8. [PMID: 3720751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The value of commonly used routine films obtained at excretory urography was assessed in 565 patients. For a high level of confidence following films are recommended: Initial zonographic cut over the kidneys. A-P film covering bladder, ureters and as much as possible of the kidneys. Immediate post contrast medium injection film. Plain film or zonographic (tomographic) cut over the kidneys 10 min. later. Immediate post compression film. (Possible) post void film. The shorter urograms suggested by other authors are probably giving such a low level of confidence that other examinations may be requested as supplements.
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Martell M, Padrón G, Hernández M, Afonso JM, Cabrera VM. Human enzyme polymorphism on the Canary Islands. I. Gran Canaria Island population. Hum Hered 1986; 36:41-4. [PMID: 3949359 DOI: 10.1159/000153598] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Genetic polymorphism of seven red cell enzymes was examined in two Canary Island populations and in an Iberian peninsula sample. The more isolated insular population shows a considerable gene frequency heterogeneity when compared with the peninsular sample but both are within the range of European populations. The presence of certain rare alleles normally associated with blacks suggests an African component in the Canarian populations.
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Afonso JM, Hernández M, Padrón G, González AM. Gametic non-random associations in North-West African populations ofDrosophila melanogaster. Genetica 1985. [DOI: 10.1007/bf02424455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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