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| Registros recuperados: 31 | |
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| Medina Galicia, Alfonso. |
| La Mixteca Baja Poblana es una región con altos índices de marginación y pobreza extrema. En ella existe una especie conocida como “cuatomate” cuya importancia reside en ser una alternativa para el desarrollo económico y social. Aunque se han desarrollado algunos trabajos sobre la especie, pocos contemplan la importancia del conocimiento campesino en su proceso de manejo, conservación y domesticación, para explicar su permanencia e importancia hasta nuestros días. También son poco conocidos aspectos importantes del cultivo tales como su reproducción, manejo y conservación. Por otra parte, la propagación de la especie por vía sexual tiene problemas porque sólo se obtienen 40% de individuos fértiles. La multiplicación asexual de la especie, por estacas, ya... |
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Palavras-chave: Mixteca; Protocolo; Manejo; Domesticación; Protocol; Management; Domestication; EDAR; Estrategías para el Desarrollo Agrícola Regional; Maestría. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/541 |
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| Alvarado Castillo, Gerardo. |
| La domesticación de hongos silvestres comestibles, particularmente de Morchella es actualmente una necesidad, generada por su demanda en los mercados nacionales e internacionales. Sin embargo, no se tiene establecido un procedimiento para su producción comercial y el 100% de la producción comercializada proviene de recolecta del bosque, ocasionando la degradación del recurso. Por tanto, para contribuir a la solución de esta situación se realizó la presente investigación, la cual integra dos etapas, una de reflexión teórica y la otra de estudios experimentales. En la primera, se efectuó un trabajo de análisis, identificando el papel del enfoque de Agroecosistemas y una propuesta conceptual de la domesticación para el caso de los hongos silvestres... |
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Palavras-chave: Domesticación; Inducción; Recolección; Suplementación; Domestication; Induction; Harvesting; Supplementation; Doctorado; Agroecosistemas tropicales. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/701 |
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| Medina Galicia, Alfonso. |
| La Mixteca Baja Poblana es una región con altos índices de marginación y pobreza extrema. En ella existe una especie conocida como “cuatomate” cuya importancia reside en ser una alternativa para el desarrollo económico y social. Aunque se han desarrollado algunos trabajos sobre la especie, pocos contemplan la importancia del conocimiento campesino en su proceso de manejo, conservación y domesticación, para explicar su permanencia e importancia hasta nuestros días. También son poco conocidos aspectos importantes del cultivo tales como su reproducción, manejo y conservación. Por otra parte, la propagación de la especie por vía sexual tiene problemas porque sólo se obtienen 40% de individuos fértiles. La multiplicación asexual de la especie, por estacas, ya... |
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Palavras-chave: Mixteca; Protocolo; Manejo; Domesticación; Protocol; Management; Domestication; EDAR; Estrategías para el Desarrollo Agrícola Regional; Maestría. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/541 |
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| Menguer,Paloma Koprovski; Sperotto,Raul Antonio; Ricachenevsky,Felipe Klein. |
| Abstract Oryza sativa, the common cultivated rice, is one of the most important crops for human consumption, but production is increasingly threatened by abiotic stresses. Although many efforts have resulted in breeding rice cultivars that are relatively tolerant to their local environments, climate changes and population increase are expected to soon call for new, fast generation of stress tolerant rice germplasm, and current within-species rice diversity might not be enough to overcome such needs. The Oryza genus contains other 23 wild species, with only Oryza glaberrima being also domesticated. Rice domestication was performed with a narrow genetic diversity, and the other Oryza species are a virtually untapped genetic resource for rice stress tolerance... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza; Rice; Wild species; Abiotic stress; Domestication. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000200238 |
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| Benhaim, David; Begout, Marie-laure; Chatain, Beatrice. |
| The present work compared wild-caught and domesticated sea bass juveniles swimming activity, exploration and visual attraction induced by an unfamiliar congener located behind a transparent wall at the end of one arm of a T-maze. This cognitive challenge was based on the hypothesis that placed into a novel and therefore stressful environment; the fish would adopt a gregarious behaviour even though they were not familiar with the present congener. Twenty individuals of similar size from both origins were individually tested. After a 5min acclimatization period, the wall of the start-box was removed and the maze was filmed during 20 min. Different swimming variables including angular velocity (Vang), total distance travelled (Dtot), velocity mean (Vel), time... |
| Tipo: Text |
Palavras-chave: Domestication; Maze; Visual cue; Personality; Swimming activity. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00192/30322/28793.pdf |
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| Wellenreuther, Maren; Le Luyer, Jeremy; Cook, Denham; Ritchie, Peter A.; Bernatchez, Louis. |
| Identifying genes and pathways involved in domestication is critical to understand how species change in response to human-induced selection pressures, such as increased temperatures. Given the profound influence of temperature on fish metabolism and organismal performance, a comparison of how temperature affects wild and domestic strains of snapper is an important question to address. We experimentally manipulated temperature conditions for F1-hatchery and wild Australasian snapper (Chrysophrys auratus) for 18 days to mimic seasonal extremes and measured differences in growth, white muscle RNA transcription and hematological parameters. Over 2.2 Gb paired-end reads were assembled de novo for a total set of 33,017 transcripts (N50 = 2,804). We found... |
| Tipo: Text |
Palavras-chave: Domestication; Temperature; Transcriptomics; Growth; Sparidae. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00476/58788/61321.pdf |
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| Millot, Sandie; Begout, Marie-laure; Chatain, Beatrice. |
| Differences in bold and shy personality on sea bass Dicentrarchus labrax were investigated between a population (wild) produced from wild-brood fish and a population (selected) produced from selected-brood fish. During the experiment (112 days), fish were reared under self-feeding condition to characterize the feeding behaviour of each individual fish. Three risk-taking tests (T1, T2 and T3 of 24 h with day-night alternation) were carried out at > 1 month intervals on 180 fish of each strain in order to monitor D. labrax behaviour over time and in relation to the light:dark period. A risk-taking score was evaluated via a preference choice between a safe zone (without food) and a risky zone (potentially with food) by recording the number and the duration... |
| Tipo: Text |
Palavras-chave: Learning; Habituation; Domestication; Choice test; Boldness. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-7313.pdf |
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| Lapegue, Sylvie. |
| The development of fish and shellfish farming is facing several challenges linked to the infancy of the industry: i.e. domestication, genetic improvement of disease resistance, genetic improvement of feed efficiency to fish meal and fish oil substitution by vegetal products, development of adapted vaccines, supply of fry or spat at high quality and high robustness, adaptation to environmental change, production of healthy, high quality consumer products and limitation of environmental impact of the activity and escapees. Over recent years, the EU and individual countries have supported the development of genomic tools for some aquaculture species (e.g. rainbow trout, sea bass, sea bream, turbot pacific oyster, Atlantic salmon). New perspectives arise... |
| Tipo: Text |
Palavras-chave: Mussels; Oysters; Domestication; Genome mapping; Genetic. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/acte-3819.pdf |
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| Goyard, Emmanuel; Arnaud, Sophie; Vonau, Vincent; Bishoff, Vincent; Mouchel, Olivier; Pham, Dominique; Wyban, Jim; Boudry, Pierre. |
| The Latin American shrimp Litopenaeus stylirostris was introduced in three different Pacific islands (Tahiti, New Caledonia via Tahiti, and Hawaii) and hatchery-propagated for 7-25 generations to develop shrimp farming based on these domesticated stocks. Three microsatellite markers have been used in an attempt to assess the genetic bases of the populations available to start a selective breeding program. The comparison of eight hatchery stocks (five New Caledonian, two Hawaiian and one Tahitian stocks) and one wild Ecuadorian population showed a much lower variability in the domesticated stocks than in the wild population, especially in New Caledonia and Tahiti (2-3.7 vs. 14-27 alleles per locus; 20-60% vs. 90% expected heterozygosity). The Tahitian and... |
| Tipo: Text |
Palavras-chave: Microsatellite marker; Genetic variability; Domestication; Litopenaeus stylirostris; Shrimp. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/publication-596.pdf |
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| Usandizaga, Sara; Buschmann, Alejandro H.; Camus, Carolina; Kappes, José Luis; Arnaud-haond, Sophie; Mauger, Stéphane; Valero, Myriam; Guillemin, Marie Laure. |
| The objective of this study was to test, using a field experiment, the effect of genotypic diversity on productivity of farmed populations (Ancud and Chaica, Chile) of the domesticated red alga Agarophyton chilense (formerly known as Gracilaria chilensis), a species considered as economically important in Chile. Monoclonal and polyclonal (4 and 8 genotypes) subplots were outplanted into the mid intertidal in Metri Bay (Puerto Montt, Chile) during summer, a season in which A. chilense face higher temperatures (>18°C) and low nitrogen availability (<4.00 μmol). Ancud farm genotypes show higher growth rates in the monoclonal rather than the two polyclonal subplots. A similar tendency, yet not significant, was discernible in Chaica. In addition, whatever... |
| Tipo: Text |
Palavras-chave: Domestication; General‐purpose genotypes; Genotypic diversity; Productivity; Seaweed. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00605/71727/70197.pdf |
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| Taris, Nicolas; Batista, Frederico; Marissal, Eric; Boudry, Pierre. |
| Direct and indirect consequences of selective breeding in marine bivalves still remain largely unexplored. For species with two-phase life cycle, like the Pacific oyster (Crassostrea gigas), most studies have focused on juvenile and adult stages, but relatively few have focused on juvenile and adult stages, but relatively few have considered the larval stage, especially in a domestication context. We assessed the impact of hatchery practices on larval traits, notably on larval growth (due to the culling of slow growing larvae), by the study of larval progenies. Larvae originating from crosses using parental oysters both from natural beds and from hatchery broodstock which had been selected for adult growth and shell shape for seven generations. A set of... |
| Tipo: Text |
Palavras-chave: Inbreeding depresion; Larvae stage; Genetic variability; Hatchery; Domestication; Genetic; Crassostrea gigas; Oyster. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/acte-3337.pdf |
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| Roussel, Sabine; Bisch, T; Lachambre, S; Boudry, Pierre; Gervois, Jl; Lambert, Christophe; Huchette, S; Day, R. |
| Domestication of Haliotis tuberculata has only recently begun. During the process, we expect that behavioural and physiological traits may evolve to become more adapted to their captive environment. These modifications may result from intentional selection of production traits or unconscious and unintentional selection due to conditions experienced in the farm environment. To study this process at the earliest stage, the progeny of 3 different broodstocks obtained from wild parents, selected farmed abalone and randomly sampled farmed abalone, were studied. After rearing for 16 mo in separate tanks, offspring from the 3 progenies were placed together in sea cages at the same density. After 3 yr, behavioural traits were studied, and the immune status after a... |
| Tipo: Text |
Palavras-chave: Predation; Hiding behaviour; Haliotis tuberculata; Domestication; Selection; Captive; Abalone. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00487/59841/62989.pdf |
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| Taris, Nicolas; Batista, F; Boudry, Pierre. |
| Underlying consequences of domestication and artificial selection still remain largely unexplored in most aquacultured species. For species with a two phase life cycle, including the Pacific oyster Crassostrea gigas, most genetic studies have focused on the post-metamorphosis juvenile and adult stages, but relatively few considered the larval stage. To assess the consequence of hatchery practices on larval characters, especially growth, we performed a phenotypic study on larval progenies derived from crosses between Pacific oysters from natural beds and farmed Pacific oysters selected for desirable production traits such as rapid growth, for over seven generations. A set of three microsatellite loci was used to compare the genetic variability between the... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Inbreeding depression; Selection; Domestication; Larval stage. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3848.pdf |
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| Registros recuperados: 31 | |
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