The Experts below are selected from a list of 12 Experts worldwide ranked by ideXlab platform
E. Renesto - One of the best experts on this subject based on the ideXlab platform.
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Reproductive strategies and genetic variability in tropical freshwater fish
Genetics and Molecular Biology, 2007Co-Authors: Maria Dolores Peres Lassala, E. RenestoAbstract:We estimated the genetic variability of nine fish species from the Brazilian upper Parana River floodplain (Astyanax altiparanae, Hoplias malabaricus, Leporinus lacustris, Loricariichthys platymetopon, Parauchenipterus galeatus, Pimelodus maculatus, Rhaphiodon vulpinus, Roeboides paranensis and Serrasalmus marginatus) based on data for 36 putative allozyme loci obtained using corn starch gel electrophoresis of 13 enzymatic systems: aspartate aminotransferase (EC 2.6.1.1), acid phosphatase (EC 3.1.3.2), esterase (EC 3.1.1.1), glycerol-3-phosphate Dehydrogenase (EC 1.1.1.8), glucose-6-phosphate Dehydrogenase (EC 1.1.1.49), glucose-6-phosphate isomerase (EC 5.3.1.9), Iditol Dehydrogenase (EC 1.1.1.14), isocitrate Dehydrogenase - NADP+ (EC 1.1.1.42), L-lactate Dehydrogenase (EC 1.1.1.27), malate Dehydrogenase (EC 1.1.1.37), malate Dehydrogenase-NADP+ (EC 1.1.1.40), phosphoglucomutase (EC 5.4.2.2) and superoxide dismutase, (EC 1.15.1.1). The mean expected heterozygosity varied from zero to 0.147. When data from the literature for 75 species of tropical fish were added to the nine species of this study, the heterozygosity values differed significantly among the groups of different reproductive strategies. The highest mean heterozygosity was for the non-migratory without parental care, followed by the long-distance migratory, and the lowest mean was for the non-migratory with parental care or internal fecundation.
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Genetic variability in Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae) from the Upper Paraná River basin, Brazil
Genetics and Molecular Biology, 2005Co-Authors: Maria Dolores Peres, Marcio Dos Santos Vasconcelos, E. RenestoAbstract:Allozyme data was used to assess the genetic diversity Astyanax altiparanae populations from the floodplain of the Upper Parana River (PR). Specimens were collected in the southern Brazilian state of Parana from PR in Porto Rico municipality and Ribeirao Ficha (RF) in Ubirata municipality. The authors used 15% (w/v) corn starch gel electrophoresis to identify 21 putative loci for 13 enzymatic systems: Aspartate aminotransferase, 2.6.1.1 (AAT), Acid phosphatase, 3.1.3.2 (ACP), Esterase, 3.1.1.1 (EST), Glycerol-3-phosphate Dehydrogenase, 1.1.1.8 (G3PDH), Glucose-6-phosphate Dehydrogenase, 1.1.1.49 (G6PDH), Glucose-6-phosphate isomerase, 5.3.1.9 (GPI), Iditol Dehydrogenase, 1.1.1.14 (IDDH), Isocitrate Dehydrogenase - NADP+, 1.1.1.42 (IDH), L-Lactate Dehydrogenase, 1.1.1.27 (LDH), Malate Dehydrogenase, 1.1.1.37 (MDH), Malate Dehydrogenase - NADP+, 1.1.1.40 (MDHP), Phosphoglucomutase, 5.4.2.2 (PGM), and Superoxide dismutase, 1.15.1.1 (SOD). The proportion of polymorphic loci were estimated as 52.38% in the PR population and 38.10% in the RF population. Expected estimated heterozygosities were 0.1518 ± 0.0493 for the PR population and 0.0905 ± 0.0464 for the RF population. The A. altiparanae heterozygosity data were similar to previous estimates for other PR basin characid species. Allele frequencies were significantly different between the PR and RF populations in respect to some loci (Acp-1, G3pdh-1, Gpi-A, Iddh-1, Mdhp-1 and Mdhp-2). Wrights statistics for all loci were estimated as Fis = 0.3919, Fit = 0.4804 and Fst = 0.1455. Our results show that the A. altiparanae populations studied are genetically different and have a high degree of genetic variability.
Vasconcelos,marcio Dos Santos - One of the best experts on this subject based on the ideXlab platform.
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Genetic variability in Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae) from the Upper Paraná River basin, Brazil
Sociedade Brasileira de Genética, 2005Co-Authors: Peres,maria Dolores, Vasconcelos,marcio Dos SantosAbstract:Allozyme data was used to assess the genetic diversity Astyanax altiparanae populations from the floodplain of the Upper Paraná River (PR). Specimens were collected in the southern Brazilian state of Paraná from PR in Porto Rico municipality and Ribeirão Ficha (RF) in Ubiratã municipality. The authors used 15% (w/v) corn starch gel electrophoresis to identify 21 putative loci for 13 enzymatic systems: Aspartate aminotransferase, 2.6.1.1 (AAT), Acid phosphatase, 3.1.3.2 (ACP), Esterase, 3.1.1.1 (EST), Glycerol-3-phosphate Dehydrogenase, 1.1.1.8 (G3PDH), Glucose-6-phosphate Dehydrogenase, 1.1.1.49 (G6PDH), Glucose-6-phosphate isomerase, 5.3.1.9 (GPI), Iditol Dehydrogenase, 1.1.1.14 (IDDH), Isocitrate Dehydrogenase - NADP+, 1.1.1.42 (IDH), L-Lactate Dehydrogenase, 1.1.1.27 (LDH), Malate Dehydrogenase, 1.1.1.37 (MDH), Malate Dehydrogenase - NADP+, 1.1.1.40 (MDHP), Phosphoglucomutase, 5.4.2.2 (PGM), and Superoxide dismutase, 1.15.1.1 (SOD). The proportion of polymorphic loci were estimated as 52.38% in the PR population and 38.10% in the RF population. Expected estimated heterozygosities were 0.1518 ± 0.0493 for the PR population and 0.0905 ± 0.0464 for the RF population. The A. altiparanae heterozygosity data were similar to previous estimates for other PR basin characid species. Allele frequencies were significantly different between the PR and RF populations in respect to some loci (Acp-1, G3pdh-1, Gpi-A, Iddh-1, Mdhp-1 and Mdhp-2). Wrights statistics for all loci were estimated as Fis = 0.3919, Fit = 0.4804 and Fst = 0.1455. Our results show that the A. altiparanae populations studied are genetically different and have a high degree of genetic variability
Peres,maria Dolores - One of the best experts on this subject based on the ideXlab platform.
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Genetic variability in Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae) from the Upper Paraná River basin, Brazil
Sociedade Brasileira de Genética, 2005Co-Authors: Peres,maria Dolores, Vasconcelos,marcio Dos SantosAbstract:Allozyme data was used to assess the genetic diversity Astyanax altiparanae populations from the floodplain of the Upper Paraná River (PR). Specimens were collected in the southern Brazilian state of Paraná from PR in Porto Rico municipality and Ribeirão Ficha (RF) in Ubiratã municipality. The authors used 15% (w/v) corn starch gel electrophoresis to identify 21 putative loci for 13 enzymatic systems: Aspartate aminotransferase, 2.6.1.1 (AAT), Acid phosphatase, 3.1.3.2 (ACP), Esterase, 3.1.1.1 (EST), Glycerol-3-phosphate Dehydrogenase, 1.1.1.8 (G3PDH), Glucose-6-phosphate Dehydrogenase, 1.1.1.49 (G6PDH), Glucose-6-phosphate isomerase, 5.3.1.9 (GPI), Iditol Dehydrogenase, 1.1.1.14 (IDDH), Isocitrate Dehydrogenase - NADP+, 1.1.1.42 (IDH), L-Lactate Dehydrogenase, 1.1.1.27 (LDH), Malate Dehydrogenase, 1.1.1.37 (MDH), Malate Dehydrogenase - NADP+, 1.1.1.40 (MDHP), Phosphoglucomutase, 5.4.2.2 (PGM), and Superoxide dismutase, 1.15.1.1 (SOD). The proportion of polymorphic loci were estimated as 52.38% in the PR population and 38.10% in the RF population. Expected estimated heterozygosities were 0.1518 ± 0.0493 for the PR population and 0.0905 ± 0.0464 for the RF population. The A. altiparanae heterozygosity data were similar to previous estimates for other PR basin characid species. Allele frequencies were significantly different between the PR and RF populations in respect to some loci (Acp-1, G3pdh-1, Gpi-A, Iddh-1, Mdhp-1 and Mdhp-2). Wrights statistics for all loci were estimated as Fis = 0.3919, Fit = 0.4804 and Fst = 0.1455. Our results show that the A. altiparanae populations studied are genetically different and have a high degree of genetic variability
Maria Dolores Peres - One of the best experts on this subject based on the ideXlab platform.
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Genetic variability in Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae) from the Upper Paraná River basin, Brazil
Genetics and Molecular Biology, 2005Co-Authors: Maria Dolores Peres, Marcio Dos Santos Vasconcelos, E. RenestoAbstract:Allozyme data was used to assess the genetic diversity Astyanax altiparanae populations from the floodplain of the Upper Parana River (PR). Specimens were collected in the southern Brazilian state of Parana from PR in Porto Rico municipality and Ribeirao Ficha (RF) in Ubirata municipality. The authors used 15% (w/v) corn starch gel electrophoresis to identify 21 putative loci for 13 enzymatic systems: Aspartate aminotransferase, 2.6.1.1 (AAT), Acid phosphatase, 3.1.3.2 (ACP), Esterase, 3.1.1.1 (EST), Glycerol-3-phosphate Dehydrogenase, 1.1.1.8 (G3PDH), Glucose-6-phosphate Dehydrogenase, 1.1.1.49 (G6PDH), Glucose-6-phosphate isomerase, 5.3.1.9 (GPI), Iditol Dehydrogenase, 1.1.1.14 (IDDH), Isocitrate Dehydrogenase - NADP+, 1.1.1.42 (IDH), L-Lactate Dehydrogenase, 1.1.1.27 (LDH), Malate Dehydrogenase, 1.1.1.37 (MDH), Malate Dehydrogenase - NADP+, 1.1.1.40 (MDHP), Phosphoglucomutase, 5.4.2.2 (PGM), and Superoxide dismutase, 1.15.1.1 (SOD). The proportion of polymorphic loci were estimated as 52.38% in the PR population and 38.10% in the RF population. Expected estimated heterozygosities were 0.1518 ± 0.0493 for the PR population and 0.0905 ± 0.0464 for the RF population. The A. altiparanae heterozygosity data were similar to previous estimates for other PR basin characid species. Allele frequencies were significantly different between the PR and RF populations in respect to some loci (Acp-1, G3pdh-1, Gpi-A, Iddh-1, Mdhp-1 and Mdhp-2). Wrights statistics for all loci were estimated as Fis = 0.3919, Fit = 0.4804 and Fst = 0.1455. Our results show that the A. altiparanae populations studied are genetically different and have a high degree of genetic variability.
Marcio Dos Santos Vasconcelos - One of the best experts on this subject based on the ideXlab platform.
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Genetic variability in Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae) from the Upper Paraná River basin, Brazil
Genetics and Molecular Biology, 2005Co-Authors: Maria Dolores Peres, Marcio Dos Santos Vasconcelos, E. RenestoAbstract:Allozyme data was used to assess the genetic diversity Astyanax altiparanae populations from the floodplain of the Upper Parana River (PR). Specimens were collected in the southern Brazilian state of Parana from PR in Porto Rico municipality and Ribeirao Ficha (RF) in Ubirata municipality. The authors used 15% (w/v) corn starch gel electrophoresis to identify 21 putative loci for 13 enzymatic systems: Aspartate aminotransferase, 2.6.1.1 (AAT), Acid phosphatase, 3.1.3.2 (ACP), Esterase, 3.1.1.1 (EST), Glycerol-3-phosphate Dehydrogenase, 1.1.1.8 (G3PDH), Glucose-6-phosphate Dehydrogenase, 1.1.1.49 (G6PDH), Glucose-6-phosphate isomerase, 5.3.1.9 (GPI), Iditol Dehydrogenase, 1.1.1.14 (IDDH), Isocitrate Dehydrogenase - NADP+, 1.1.1.42 (IDH), L-Lactate Dehydrogenase, 1.1.1.27 (LDH), Malate Dehydrogenase, 1.1.1.37 (MDH), Malate Dehydrogenase - NADP+, 1.1.1.40 (MDHP), Phosphoglucomutase, 5.4.2.2 (PGM), and Superoxide dismutase, 1.15.1.1 (SOD). The proportion of polymorphic loci were estimated as 52.38% in the PR population and 38.10% in the RF population. Expected estimated heterozygosities were 0.1518 ± 0.0493 for the PR population and 0.0905 ± 0.0464 for the RF population. The A. altiparanae heterozygosity data were similar to previous estimates for other PR basin characid species. Allele frequencies were significantly different between the PR and RF populations in respect to some loci (Acp-1, G3pdh-1, Gpi-A, Iddh-1, Mdhp-1 and Mdhp-2). Wrights statistics for all loci were estimated as Fis = 0.3919, Fit = 0.4804 and Fst = 0.1455. Our results show that the A. altiparanae populations studied are genetically different and have a high degree of genetic variability.
