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| Registros recuperados: 189 | |
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| Morales, M.; Iglesias, E.; Ortiz, E.. |
| Las colecciones microbianas son consideradas como centros de recursos genéticos que custodian dicho germoplasma, entre sus funciones principales se encuentra la conservación de los microorganismos, lo que permite garantizar el suministro de cepas requerido para acometer actividades docentes, investigativas o productivas. En Cuba, tales curadores, se aglutinaron en el Grupo de Colecciones Microbianas, que durante el 2002 se constituyó como Sección de Colecciones Microbianas y otros Materiales Biológicos de la ATAC, alcanzando en la actualidad más de 100 asociados, que participan en reuniones trimestrales, cursos, adiestramientos y talleres, donde son discutidos los resultados del trabajo científico-técnico desarrollado en sus colecciones. Se comentan de... |
| Tipo: Journal Contribution |
Palavras-chave: Biological collections; Genetics; Genetics; Http://aims.fao.org/aos/agrovoc/c_3222. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/3652 |
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| Lechable, Marion; Jan, Anne-cecile; Duchene, Axel; Uveira, Julie; Weissbourd, Brandon; Gissat, Loann; Collet, Sophie; Gilletta, Laurent; Chevalier, Sandra; Leclère, Lucas; Peron, Sophie; Barreau, Carine; Lasbleiz, Régis; Houliston, Evelyn; Momose, Tsuyoshi. |
| The jellyfish species Clytia hemisphaerica (Cnidaria, Hydrozoa) has emerged as a new experimental model animal in the last decade. Favorable characteristics include a fully transparent body suitable for microscopy, daily gamete production and a relatively short life cycle. Furthermore, whole genome sequence assembly and efficient gene editing techniques using CRISPR/Cas9 have opened new possibilities for genetic studies. The quasi-immortal vegetatively-growing polyp colony stage provides a practical means to maintain mutant strains. In the context of developing Clytia as a genetic model, we report here an improved whole life cycle culture method including an aquarium tank system designed for culture of the tiny jellyfish form. We have compared different... |
| Tipo: Text |
Palavras-chave: Animal culture; Cnidarian; Developmental biology; Genetics; Jellyfish. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00656/76820/77996.pdf |
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| Alvarez, Antonio; Arias, Carlos; Roibas, David. |
| Resumen Este trabajo analiza la calidad en la producción de leche y su relación con la genética del rebaño. El marco analítico es un modelo de producción multi-output en el que la calidad de la leche se considera como un output del proceso productivo. El modelo propuesto abre la posibilidad del tratamiento empírico de la calidad y la genética mediante el uso de funciones distancia. En la parte empírica del trabajo se usa un panel de datos de 96 explotaciones lecheras asturianas que contiene índices genéticos del rebaño. Palabras clave: leche, calidad, genética, multi-output, función distancia. Abstract In this paper we analyze the influence of genetics on milk quality. For that purpose, we use a multi-output production model in which milk quality is... |
| Tipo: Journal Article |
Palavras-chave: Milk; Quality; Genetics; Multi-output production model; Distance function.; Livestock Production/Industries; D21; Q12; C23. |
| Ano: 2005 |
URL: http://purl.umn.edu/28791 |
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| Nafkfa, Ch.; Ezzeddine, S.; Chemmam, B.; Jarboui, O.; Fadlaoui-Zid, K.. |
| Le poulpe commun Octopus vulgaris représente, parmi les céphalopodes, la principale espèce exploitée par la pêche côtière surtout dans la région Sud de la Tunisie. Une analyse génétique basée sur l’approche moléculaire et de population est jugée nécessaire pour assurer une gestion crédible et durable du stock. L’analyse a porté sur le polymorphisme de l’ADN mitochondrial par séquençage d’un fragment du gène cytochrome b de taille 485pb chez 52 échantillons collectés dans deux localités différentes : îles de Galite (Nord) et Elketf –Zarzis (Sud). Les résultats obtenus montrent que sur les 52 séquences réalisées, il y’a 14 haplotypes différents dont deux partagés entre les deux localités. L’haplotype le plus représenté est rencontré chez 29 individus. Une... |
| Tipo: Journal Contribution |
Palavras-chave: Octopus fisheries; Genetics; Octopuses; Genetics. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/5296 |
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| Freitas,S.R.S.; Cabello,P.H.; Moura-Neto,R.S.; Dolinsky,L.C.; Lima,A.B.; Barros,M.; Bittencourt,I.; Cordovil,I.L.. |
| Essential hypertension is a disease multifactorially triggered by genetic and environmental factors. The contribution of genetic polymorphisms of the renin-angiotensin-aldosterone system and clinical risk factors to the development of resistant hypertension was evaluated in 90 hypertensive patients and in 115 normotensive controls living in Southwestern Brazil. Genotyping for insertion/deletion of angiotensin-converting enzyme, angiotensinogen M235T, angiotensin II type 1 receptor A1166C, aldosterone synthase C344T, and mineralocorticoid receptor A4582C polymorphisms was performed by PCR, with further restriction analysis when required. The influence of genetic polymorphisms on blood pressure variation was assessed by analysis of the odds ratio, while... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential hypertension; Renin-angiotensin- aldosterone system; Polymorphisms; Genetics. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000300005 |
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| Martinez,Pablo A; Zurano,Juan P; Molina,Wagner F; Bidau,Claudio J. |
| Phylogeographic studies are currently used to infer historical demographic processes such as gene fow, determination of effective population sizes, colonisation dynamics, and population botlenecks, as well as for the determination of species boundaries and the identification of possible conservation units. We present a review of the main contributions of this approach, and its applications and implications for canid conservation. Studies performed in canids have shown that the number of named subspecies is often larger than that of phylogeographic units. In recent times, the fragmentation of habitats has increased and one of the major concerns of conservation biologists is the occurrence of inbreeding. Large-sized canids have demonstrated to have enough... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canidae; Conservation units; Genetics; Hybridisation; Inbreeding. |
| Ano: 2013 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832013000100005 |
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| Elghobashy, H.. |
| Fish production in Egypt has significantly increased over the last few years reaching 546 000 t in 1998 compared to 306 000 t in 1988. The contribution of aquaculture in the overall fish production has increased as well reaching its utmost share in 1998 (26%). Research on aquaculture topics was conducted in several institutes targeting the increase of productivity as well as working on problems facing this promising sector. However, research on fish genetics in Egypt only started in recent years. The genetic improvement of tilapias and African catfish represents the focus of most genetics research in Egypt. This paper presents the status of genetics research within the International Network on Genetics in Aquaculture and in other national institutes in... |
| Tipo: Proceedings Paper |
Palavras-chave: Genetics; Genetics; Http://aims.fao.org/aos/agrovoc/c_3222. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/845 |
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| Ambali, A.. |
| Aquaculture genetics research is carried out at the National Aquaculture Centre at Domasi, Malawi, by staff of the University of Malawi (UM) and the Department of Fisheries. The main species cultured are from genera Tilapia and Oreochromis. The genus Oreochromis was domesticated without proper identification of the various species especially in the subgenus Nyasalapia where three species (O. karongae, O. squamipinnis, and O. lidole) are difficult to identify before they reach breeding size. It is, however, observed that local fishers can identify these species using morphological characters. There have been no attempts to carry out deliberate domestication selection in the small-scale farms with the prevailing practices probably leading to deterioration of... |
| Tipo: Book Section |
Palavras-chave: Aquaculture; Genetics. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/275 |
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| Vandeputte, Marc; Quillet, Edwige; Chatain, Beatrice. |
| Sex ratios in farmed European sea bass are highly biased towards males (75 to 95%), which is problematic for aquaculture. In this mini-review, we re-analyse fisheries literature data about sex ratios in wild sea bass from 13 population samples, representing altogether 4889 individuals covering the major part of the distribution range of the species. We find that as a whole, the sex ratio of wild populations is biased towards females (59.4% females, p < 0.001), but that the sex ratio of the younger fish (< 30 cm total length) is balanced (52.0% females, p = 0.15), while the sex ratio of the older fish is heavily biased towards females (69.5% females, p < 0.01). Possible causes of these differences (differential longevity, biased sampling) are... |
| Tipo: Text |
Palavras-chave: Sex ratio; Genetics; Sex determination; Fish aquaculture; Dicentrarchus labrax. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00078/18882/16450.pdf |
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| Registros recuperados: 189 | |
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