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Registros recuperados: 19
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A "G" chromosome banding study of three cupped oyster species : Crassostrea gigas, Crassostrea angulata and Crassostrea virginica (Mollusca : Bivalvia) ArchiMer
Leitao, Alexandra; Thiriot-quievreux, Catherine; Malheiro, Isabel; Boudry, Pierre.
The G-banding technique was performed on chromosomes from gill tissue of three cupped oyster species : Crassostrea gigas, Crassostrea angulata and Crassostrea virginica. Identification of the ten individual chromosome pairs was obtained. Comparative analysis of G-banded karyotypes of the three species showed that their banding patterns generally resembled each other, with chromosome pair 3 being similar in all three species. However, differences from one species to another were also observed. The G-banding pattern highlighted greater similarities between C. gigas and C. angulata than between these two species and C. virginica, thus providing an additional argument for genetic divergence between, these two evolutionary lineages. C. gigas and C. angulata...
Tipo: Text Palavras-chave: Crassostrea virginica; Crassostrea angulata; Crassostrea gigas; G banding; Chromosome.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/1999/publication-2736.pdf
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Anatomie interne de véligères planctoniques de Prosobranches Mésogastropodes au stade proche de la métamorphose ArchiMer
Thiriot-quievreux, Catherine.
With the histological techniques used to study Heteropod 13, 14 larvae, the histological structures of planktonic larvae are described at a stage close to metamorphosis; species are chosen among families of Mesogastropods (Lamellariidae, Eratoidae, Cypraeidae, Naticidae) whose phylogeny is close to the Atlantacea superfamily (= Heteropoda) according to the Taylor and Sohl15 classification. The mantle, mantle cavity, foot and digestive tract are described in depth.
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1974 URL: http://archimer.ifremer.fr/doc/1974/publication-5073.pdf
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Aneuploidy and its relationship with growth in different populations of the Pacific oyster (Crassostrea gigas, Thunberg) ArchiMer
Boudry, Pierre; Leitao, Alexandra; Mccombie, Helen; Thiriot-quievreux, Catherine.
Cytogenetic abnormalities arising both in mitosis and meiosis are known to be common in bivalves. Here we review result obtained from the observations of somatic aneuploidy in different populations of the commercially important Pacific oyster, Crassostrea gigas. The oysters studied were either (1) produced in IFREMER hatcheries between 1986 and 1999, (some of these were part of the EU funded programme GENEPHYS); or (2) collected from wild populations along the French Atlantic coast. Chromosome numbers were scored from 30 mitotic metaphases in gill tissue per individual studied. Aneuploid cells (2n - X) were observed in all the 13 populations studied. A highly significant negative correlation was observed between the level of aneuploidy and growth, i.e....
Tipo: Text Palavras-chave: Growth; Genetic; Aneuploidy; Crassostrea gigas; Pacific oysters.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/acte-3446.pdf
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Appareil génital femelle des atlantidae (mollusca heteropoda). I. étude anatomique ArchiMer
Thiriot-quievreux, Catherine; Martoja, M..
The anatomy of the female reproductive system of eight species of the family Atlantidae (Oxygyrus keraudreni (Lesueur), Protatlanta souleyeti (Smith), Atlanta peroni Lesueur, Atlanta lesueuri Souleyet, Atlanta inclinata Souleyet, Atlanta inflata Souleyet, Atlanta helicinoides Souleyet, Atlanta fusca Souleyet) has been studied using reconstructions from serial sections. The reproductive system includes ovary, non-glandular oviduct, receptaculum seminis, albumen gland and capsule gland. A bursa copulatrix is not present. [NOT CONTROLLED OCR]
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1974 URL: http://archimer.ifremer.fr/doc/1974/publication-5453.pdf
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Comparative karyological study of cupped oyster species ArchiMer
Leitao, Alexandra; Boudry, Pierre; Labat, Jean-philippe; Thiriot-quievreux, Catherine.
Chromosomes of six cupped oyster species were studied using karyometric analysis alter conventional Giemsa staining, and silver staining, Karyotypes of Crassotrea angulata (nine metacentric and one submetacentric chromosome pairs), C. sikamea (nine metacentric and one submetacentric chromosome pairs), C. virginica (eight metacentric and two submetacentric chromosome pairs), C, ariakensis (eight metacentric and two submetacentric chromosome pairs), C, gasar (six metacentric and four submetacentric chromosome pairs), and Saccostrea commercialis (eight metacentric and two submetacentric chromosome pairs) are distinguishable by the number and position of the submetacentric chromosome pair and by the location of nucleolus organizer regions, Comparative...
Tipo: Text Palavras-chave: Bivalvia; Cytotaxonomy; Karyotype; Chromosome; Cupped oyster.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/1999/publication-2737.pdf
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Données histologiques sur l'appareil digestif et la digestion des atlantidae (prosobranchia : heteropoda) ArchiMer
Martoja, Micheline; Thiriot-quievreux, Catherine.
The histological structure o f the digestive system and its histophysiological changes during digestion are described in the adults of 6 species of Atlantidae. The results are interpreted functionally and discussed from the point of view of systematics. The digestive tract of the Atlantidae comprises an oesophagus functioning as a crop, a small stomach and a short intestine. A pair of tubular salivary glands and a digestive gland (hepatopancreas) are associated, but oesophageal and rectal glands are lacking. The radular apparatus has the usual prosobranch characters. The digestive tract is totally devoid of mucous cells. Several unicellular glands are in the buccal wall and the anterior part of the oesophagus. There is an apocrine secretion in the crop....
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-5420.pdf
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Etude des protoconques de quelques prosobranches de la région de roscoff ArchiMer
Thiriot-quievreux, Catherine; Rodriguez-babio, Celso.
The protoconches of different species of Prosobranches from the Roscoff area are studied with scanning electron microscopy: Rissoidae, Cingula semistriata, Cingula semicostata, Cingulopsis fulgida, Alvania beani, Alvania crassa, Alvania carinata, Alvania punctura, Alvania zetlandica, Rissoa guerini, Rissoa inconspicua, Rissoa lilacina, Rissoa parva, Risso sarsi, Barleeia rubra; Cerithiopsidae, Cerithiopsis jeffreysi, Cerithiopsis tubercularis, Cerithiopsis metaxae; Triphoridae, Triphora perversa; Buccinidae, Chauvetia brunnea; Turridae, Haedropleura septangularis, Lora rufa, Mangelia coarctata and Mangelia nebula. Based on their protoconch morphology, the development type is indicated for seven species whose reproduction was unknown: Alvania beani, Alvania...
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-5431.pdf
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Experimental evidence for a genetic basis to differences in aneuploidy in the Pacific oyster (Crassostrea gigas) ArchiMer
Leitao, Alexandra; Boudry, Pierre; Mccombie, Helen; Gerard, Andre; Thiriot-quievreux, Catherine.
Aneuploidy has been previously reported in wild and cultivated Pacific oysters, Crassostrea gigas, and has been shown to be negatively correlated with growth. This is especially important since high variability of growth rate is one of the major problems in the aquacultural production of this species. The existence of a genetic basis for the observed differences in aneuploidy was first investigated through the comparative study of six full-sib families, with mean individual weights ranging from 0.59 to 1.49 g. The slowest growing family was found to have the highest level of aneuploidy. Significant differences in aneuploidy were also found among families when individuals with the same growth rate were sampled. This supports the hypothesis of the existence...
Tipo: Text Palavras-chave: Oyster; Growth; Genetics; Full sib families; Crassostrea gigas; Aneuploidy; Huître; Croissance; Génétique; Famille de plein frères; Crassostrea gigas; Aneuploïdie.
Ano: 2001 URL: https://archimer.ifremer.fr/doc/2001/publication-2700.pdf
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Gastéropodes de la région de roscoff. Etude particulière de la protoconque ArchiMer
Rodriguez-babio, Celso; Thiriot-quievreux, Catherine.
Some scanning electron microscopy observations of the protoconch and the first juvenile spiralial whorls of gasteropod shells from the Roscoff area have been conducted on 25 species: Rissoidae, Cingula alderi and Alvania jeffreysi; Vitrinellidae, Tornus unisulcatus; Rissoellidae, Rissoella opalina; Omalogyridae, Ammonicera fischeriana; Cerithiidae, Bittium reticulatum and Bittium sp.; Cerithiopsidae, Cerithiopsis barlei; Aclididae, Graphis albida and Cima minima; Turridae, Philbertia linearis and Philbertia linearis aequalis; Pyramidellidae, Chrysallida indistincta, Noemiamea dolioliformis, Evalea divisa, Evalea divisa var. laevissima, Evalea diaphana, Eulimella laevis, Eulimella gracilis, Ebala nitidissima, Odostomia eulimoides and Turbonilla fenestrata;...
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1974 URL: http://archimer.ifremer.fr/doc/1974/publication-5423.pdf
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Heteropoda ArchiMer
Thiriot-quievreux, Catherine.
The heteropods are transparent planktonic animals, whose systematic position has undergone considerable reappraisal since the last century. It was Lamarck who, in 1812, created the order Heteropoda, which he placed between the Cephalopoda and the fishes, and brought together the genera Carinaria, Firola and Phyllirhoë. Later, Cuvier (1829) added to these the genus Atlanta. [NOT CONTROLLED OCR]
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1973 URL: http://archimer.ifremer.fr/doc/1973/publication-5117.pdf
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Le phénomène de l'anauploïdie et sa relation avec la croissance chez l'huître creuse Crassostrea gigas ArchiMer
Leitao, Alexandra; Boudry, Pierre; Mccombie, Helen; Lapegue, Sylvie; Gerard, Andre; Thiriot-quievreux, Catherine.
Cytogenetic abnormalities have often been observed on bivalves on meiosis or mitosis. This is a review of various observations of somatic aneuploidy conducted on different populations of Crassastrea gigas.
Tipo: Text Palavras-chave: Croissance; Aneuploïdie; Huîtres; Génétique; Crassostrea gigas; Cytogénétique.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/acte-3280.pdf
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Observations de la radula des Hétéropodes (Mollusca Prosobranchia) au microscope électronique à balayage et interprétation fonctionnelle ArchiMer
Thiriot-quievreux, Catherine.
Observation of Heteropod (Mollusca prosobranchia) radula with scanning electron microscopy and functional interpretation (1). Note (*) by Mrs Catherine Thiriot-Quiévreux, presented by Mr. Théodore Monod.
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1973 URL: http://archimer.ifremer.fr/doc/1973/publication-5067.pdf
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Particularités histologiques des glandes salivaires et de la glande digestive des Atlantidae (Prosobranches Atlantacea = Hétéropodes) ArchiMer
Martoja, Micheline; Thiriot-quievreux, Catherine.
The characteristics of the salivary glands are of great interest in the search for the systematic affinities of Atlantidae. The structure of the digestive gland and its evolution are significant from a taxonomic and phylogenetic point of view.
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1972 URL: http://archimer.ifremer.fr/doc/1972/publication-5056.pdf
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Phylogéographie des huîtres de mangrove de l'Océan Atlantique Sud : C. gasar et C. rhisophorae ArchiMer
Heurtebise, Serge; Boutet, Isabelle; Verden, B.; Lapegue, Sylvie; Leitao, Alexandra; Thiriot-quievreux, Catherine; Garica, P.; Boudry, Pierre.
Mangrove oysters include various species that are also present on different coasts. In the southern part of the Atlantic Ocean, Crassostrea rhizophorae has been observed along the southern coast of America and Crassostrea gasar along the western coast of Africa. Fifteen populations of these oysters were sampled from these two geographic areas. Their polymorphism was studied on the 16S mitochondrial fragment both by par sequencing and RFLP analysis. Some samples' caryotype were also analysed. Two haplotypes were identified: C. gasar was found in Africa, but also for the first time in South America, whereas C. rhizophorae was only found on the coasts of South America.
Tipo: Text Palavras-chave: Crassostrea rhizophorae; Crassostrea gasar; Huîtres; Génétique; Phylogéographie.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/acte-3278.pdf
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Phylogeography of mangrove oysters from the Southern Atlantic ocean : Crassostrea gasar and Crassostre rhizophorae ArchiMer
Lapegue, Sylvie; Boutet, Isabelle; Leitao, Alexandra; Thiriot-quievreux, Catherine; Heurtebise, Serge; Garcia, P.; Boudry, Pierre.
Mangrove oysters encompass several species and their taxomony is unclear. Among then, Crassostrea rhizophorae has been described along the Central and South American Atlantic coasts and Crassostrea gasar along African Atlantic coasts. Most taxonomic studies have so far been based on morphological criteria which are particularly susceptible to plasticity and new insight can be provided by molecular markers. The present work aims to provide information on the phylogeography of these two taxa.
Tipo: Text Palavras-chave: Genetic; Phylogeography; Crassostrea rhizophorae; Crassostrea gasar; Mangrove oysters.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/acte-3496.pdf
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Pyramidellidae, philinidae et retusidae de la région de roscoff. Etude particulière des protoconques de quelques espèces ArchiMer
Rodriguez-babio, Celso; Thiriot-quievreux, Catherine.
Some scanning electron microscopy observations have been conducted on the shells of different species of gastropods from the Roscoff area: Pyramidellidae, Odostomia acuta, 0. unidentata, 0. turrita, 0. plicata, 0. scalaris, 0. lukisi, Turbonilla crenata, T. elegantissima, T. innovata, Chrysallida decussata, C. excavata, C. obtusa, C. spiralis, Evalea obliqua; Philinidae, Philine catena; Retusidae, Refusa mammillata, R. truncatula. The protoconch and the first juvenile spiralial whorls are studied with closer attention.
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-5458.pdf
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Structure des otolithes d'un macrouridae (poisson gadiforme) bathyal. Etude au microscope électronique à balayage ArchiMer
Rannou, M.; Thiriot-quievreux, Catherine.
The structure of the otoliths of the deep-sea Macrourid Coryphaenoides guentheri was determined by means of scanning electron microscopy. The structure of the concentric zones is the same as in otoliths of fish from upper layers and cyclic phenomena exist for deep-sea fish as well. [NOT CONTROLLED OCR]
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-5472.pdf
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Sur la présence de composés glucidiques dans le ganglion viscéral de quelques Atlantidés (Gastéropode Prosobranche) ArchiMer
Thiriot-quievreux, Catherine.
There is in the visceral ganglion of different species of Atlantidae, between the neurons and the neurilemn, a layer of cells containing numerous grains of glycoproteic nature. The development of this cellular layer, more important in females than in males, coincides chronologically with genital maturity.
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1971 URL: http://archimer.ifremer.fr/doc/1971/publication-4892.pdf
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Trochidae, Skeneidae et Skenéopsidae (mollusca, prosobranchia) de la région de Roscoff. Observations au microscope électronique à balayage ArchiMer
Rodriguez Babio, Celso; Thiriot-quievreux, Catherine.
Some scanning electron microscopy observations have been conducted on different species of Prosobranches from the Roscoff area: Trochidae, Calliostoma zizyphinum, Gibbula magus, Gibbula cineraria, Gibbula tumida, Cantharidus clelandi, Cantharidus exasperatus, Cantharidus montagui, Cantharidus striatus; Skeneidae, Skenea serpuloides, Skenea cutleriana, Skenea nitens; Skeneopsidae, Skeneopsis planorbis. Observed with closer attention are the protoconch and the first juvenile spiralial whorls. The studied Trochidae have a protoconch of about one spiralial whorl; the spire is round, with an oval opening and a fine ornamentation in G. magus and C. striatus, and in G. cineraria, G. tumida, C. clelandi, C. exasperatus and C. montagui, one can notice a dorsal...
Tipo: Text Palavras-chave: Histoire Ifremer.
Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-5084.pdf
Registros recuperados: 19
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