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A comparative study on morphology, growth rate and reproduction of Clarias gariepinus (Burchell, 1822), Heterobranchus longifilis Valenciennes, 1840, and their reciprocal hybrids (Pisces, Clariidae) IRD
Legendre, Marc; Teugels, G.G.; Cauty, C.; Jalabert, B..
Successful reciprocal hybridizations between #Clarias gariepinus$ and #Heterobranchus longifilis$ were performed during three experiments. The reciprocal hybrids were viable, their survival rates being similar to those found in the maternal species. Hybrid morphology was intermediate to that of the parents. No difference in external morphology was found between the reciprocal hybrids. Growth rate comparison under the same conditions and over a period of 307 days, revealed a considerably faster growth for #H. longifilis$ x male #C. gariepinus$ hybrids displayed an even faster growth than #H. longifilis$. (D'après résumé d'auteur)
Tipo: Text Palavras-chave: AQUACULTURE; EXPERIMENTATION; HYBRIDATION; CROISSANCE; REPRODUCTION; ETUDE COMPARATIVE; POISSON CHAT.
Ano: 1992 URL: http://www.documentation.ird.fr/hor/fdi:41093
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Characterization of early molecular sex differentiation in rainbow trout, Oncorhynchus mykiss Animal Physiology
Vizziano, D.; Randuineau, G.; Baron, D.; Cauty, C.; Guiguen, Y..
Early differentiation in rainbow trout gonads was investigated by expression profiling and in situ hybridization (ISH). Expression of cyp19a1 and fst in females and sox9a1 in males were sexually dimorphic between 32 to 35 days post-fertilization (dpf). After 35 dpf, differentiation proceeded with sexually dimorphic profiles for sox9a2, dmrt1, cyp11b2.1, amh in males and foxl2a, foxl2b, hsd3b1, inha in females. cyp17a1, cyp11a1, star, nr5a1b increased only after 40 dpf in both sexes with a slightly higher expression in females. cyp19a1 expression was localized in a cluster of somatic cells in the ventral side of female gonads, and sox9a2 and amh in somatic cells surrounding the germ cells, at 28 dpf and thereafter, both in male and female gonads. cyp11b2.1,...
Tipo: Journal (Paginated) Palavras-chave: QP Physiology.
Ano: 2007 URL: http://phy043.tours.inra.fr:8080/archive/00000401/
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Comparative study of the male reproductive tract in seven families of south american catfishes Inra
Loir, M.; Cauty, C.; Planquette, P.; Le Bail, P.Y..
Tipo: Journal Article Palavras-chave: POISSON TROPICAL; SILURIDAE; SYSTEME GENITAL; MALE.
Ano: 1989 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9100009766019631&uri=/notices/prodinra1/2009/12/
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Expression patterns of collagen I (alpha1) encoding gene and muscle-specific genes reveal that the lateral domain of the fish somite forms a connective tissue surrounding the myotome Animal Physiology
Rescan, P.Y.; Ralliere, C.; Chauvigne, F.; Cauty, C..
Somites are repeated, epithelial structures that are derived from the unsegmented paraxial mesoderm located lateral to the notochord. In higher vertebrates, somites differentiate into a sclerotome that subsequently forms the vertebrae and the ribs and into a dermomyotome that gives rise to a myotome, from which arises the skeletal muscle, and to a dermatome, from which arises the dermis. Fish somites have been shown to produce a sclerotome and a myotome, but very little is known regarding their participation in the formation of connective tissues, especially at the junction between the epidermis and the myotome. To investigate the formation of connective tissues in fish somites, we have examined the expression pattern of the collagen I (alpha1) chain. As...
Tipo: Journal (Paginated) Palavras-chave: QP Physiology.
Ano: 2005 URL: http://phy043.tours.inra.fr:8080/archive/00000089/
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In situ hybridisation of a large repertoire of muscle-specific transcripts in fish larvae: the new superficial slow-twitch fibres exhibit characteristics of fast-twitch differentiation Animal Physiology
Chauvigné, F.; Ralliere, C.; Cauty, C.; Rescan, P.Y..
Much of the present information on muscle differentiation in fish concerns the early embryonic stages. To learn more about the maturation and the diversification of the fish myotomal fibres in later stages of ontogeny, we investigated by means of in situ hybridisation, the developmental expression of a large repertoire of muscle-specific genes in trout larvae from hatching to yolk resorption. At hatching, transcripts for fast and slow muscle isoforms namely myosins, tropomyosins, troponins and myosin binding protein C were present in the deep fast and the superficial slow areas of the myotome respectively. During myotome expansion that follows hatching, the expression of fast isoforms became progressively confined to the borders of the fast muscle mass...
Tipo: Journal (Paginated) Palavras-chave: QP Physiology.
Ano: 2006 URL: http://phy043.tours.inra.fr:8080/archive/00000239/
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Muscle fiber differentiation in fish embryos as shown by in situ hybridization of a large repertoire of muscle-specific transcripts Animal Physiology
Chauvigne, F.; Cauty, C.; Ralliere, C.; Rescan, P.Y..
Skeletal muscles are composed of different fiber types, largely defined by differential expression of protein isoforms involved in myofibrillogenesis or metabolism. To learn more about the gene activations that underlie the differentiation and the diversification of embryonic fish myotomal fibers, we investigated the developmental expression of 25 muscle genes in trout embryos by in situ hybridization of muscle-specific transcripts. The earliest event of muscle differentiation, at approximately the 25-somite stage, was the expression of a variety of muscle-specific genes, including slow-twitch and fast-twitch muscle isoforms. The activation of these muscle genes started in the deep somitic domain, where the slow muscle precursors (the adaxial cells) were...
Tipo: Journal (Paginated) Palavras-chave: QP Physiology.
Ano: 2005 URL: http://phy043.tours.inra.fr:8080/archive/00000090/
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Trout gill cells in primary culture on solid and permeable support Animal Physiology
Leguen, I.; Cauty, C.; Odjo, N.; Corlu, A.; Prunet, P..
Trout gill cells in primary culture on solid and permeable supports were compared. Cultures were carried out by directly seeding cells on each support after gill dissociation. Most of the cell types present in culture were similar, regardless of culture support (pavement cells, mucous cells (3-4%), but no mitochondria-rich cells). However, insertion of mucous cells in cultured epithelium on permeable support presented a morphology more similar to gills in situ. Gene expression of ion transporters and hormonal receptors indicated similar mRNA levels in both systems. Cortisol inhibited cell proliferation on both supports and maintained or increased the total cell number on solid and permeable membranes, respectively. This inhibition of mitosis associated...
Tipo: Journal (Paginated) Palavras-chave: QP Physiology.
Ano: 2007 URL: http://phy043.tours.inra.fr:8080/archive/00000430/
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Trout gill cells in primary culture on solid and permeable support Inra
Leguen, I.; Cauty, C.; Odjo, N.; Corlu, A.; Prunet, P..
Tipo: Journal Article Palavras-chave: BRANCHIE; CORTISOL.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007b5e6920d&uri=/notices/prodinra1/2007/12/
Registros recuperados: 8
Primeira ... 1 ... Última
 

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