Consulta: subjectFacets:"Albinism"
Registros recuperados: 11
Data/hora: 14/06/2024 01:29:41

Androgenic response of Brazilian wheat genotypes to different pretreatments of spikes and to a gelling agent
Provedor de dados: 86
Autores: Poersch-Bortolon,Liane Balvedi; Scagliusi,Sandra Maria Mansur; Yamazaki-Lau,Elene; Bodanese-Zanettini,Maria Helena.
Abstract The objective of this work was to analyze the androgenic response of Brazilian wheat genotypes to different pretreatments of the spikes, prior to the culture of isolated microspores, and to the effect of a gelling agent in the induction culture medium. Five genotypes were evaluated for embryo formation, green plant regeneration, and spontaneous chromosome duplication. Wheat spikes were subjected to two pretreatments: cold, at 4ºC for 21 days; and 2-hydroxynicotinic acid, at 32ºC for two days. Culture media were evaluated with or without Ficoll as a gelling agent. Cold produced more embryos and green plants than the chemical pretreatment in four out of five genotypes. Only two genotypes treated with 2-hydroxynicotinic acid were able to produce...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Triticum aestivum; Albinism; Androgenesis; Doubled haploid; Isolated microspore culture; Recalcitrance.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016001101839

Inheritance of a new albino mutation in Brazilian free-range black chickens
Provedor de dados: 89
Autores: Jorge,W; Cunha,LM.
A genetically recessive albino mutation, which inhibits pigment development in the eyes, skin, and feathers of domestic chickens from Brazil, is described. This mutation appeared in a flock of completely black chickens of a private breeder. There are no information on the origin, breed, or specific line of the birds. Pigment inhibition is apparently complete in the feathers and eyes. Bird sight is very impaired, but no histological examination was carried out. Ratios obtained in F2 and backcrossed birds indicate that a single autosomal recessive gene is responsible for the condition. The data suggest that the absence of melanin in the eyes, skin, and feathers (symbol cc) is a mutation of the pigmented C wild gene.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Albinism; Chicken; Inheritance; Melanin.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000300003

Behavior of an albino vampire bat, Desmodus rotundus (E. Geoffroy) (Chiroptera, Phyllostomidae), in captivity
Provedor de dados: 104
Autores: Uieda,Wilson.
Albinism in the common vampire bat Desmodus rotundus (E. Geoffrey, 1810) was already reported for seven individuals, six of them did in Brazil. Although this species is relatively easy to keep in captivity and many studies with normally pigmented bats were did under laboratory conditions, no reports on detailed observations of captive albino vampire bats were found in literature. This paper reports some behavioral observation of a single albino female D. rotundus kept in captivity in Brazil between 1991 and 1993. Information on feeding behavior, interactions with normally colored individuals and reproduction were recorded.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Desmodus rotundus; Albinism; Vampire bats; Sanguivory; Behavior.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000200031

Um caso de albinismo em tachã (Chauna Torquata, Oken) (Aves, Anseniformes) ocorrido na estação ecológica do Taím, Rio Grande do Sul, Brasil
Provedor de dados: 104
Autores: Veiga,Luiz Alberto; Oliveira,Alfredo T. de.
It is described herein a case study of albinism in Chauna torquata Oken, 1816 (Southern screamer) occurred at the Ecological Station of Taim, Rio Grande do Sul. Brazil. Screamers are birds of marshes, wet grasslands and forest lagoons. The bill is short and curved, the head is small and slender and the neek rather short. The strong wings are armed with two large, sharp spurs on their forward edge. The feet and legs are fleshy, the lower half of the tibia is bare, and the three long front toes show just a trace of webbing between them, They are often seen walking in pairs on the floating masses of vegetation or in large groups for feeding. The albino specimen described herein was observed feeding in the midst of a group of almost fifty birds. Their plumage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anhimidae; Chauna torquata; Southern screamer; Albinism.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000300011

Um albino parcial de veado campeiro (Ozotoceros bezoarticus, Linnaeus) no Parque Nacional das Emas, Goiás
Provedor de dados: 104
Autores: Rodrigues,Flávio H.G.; Silveira,Leandro; Jácomo,Anah T.; Monteiro-Filho,Emygdio L.A.
A case of partial albinism in the pampas deer, recorded at the Emas National Park, Goiás, Brazil is described. The coat color and behaviour of the albino are compared with normal pampas deer.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ozotoceros bezoarticus; Albinism; Pampas deer.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000400032

First record of an anomalously colored franciscana dolphin, Pontoporia blainvillei
Provedor de dados: 42
Autores: CREMER,MARTA J.; SARTORI,CAMILA M.; SCHULZE,BEATRIZ; PAITACH,RENAN L.; HOLZ,ANNELISE C.
On October 2011, a newborn franciscana dolphin with an anomalously coloration was sighted in Babitonga Bay, southern Brazil. The calf was totally white. Besides the potential mother and newborn, the group also had the presence of another adult, who always was swimming behind the pair. Both adults had the typical coloration of the species, with the back in grayish brown. The group, composed by the white franciscana calf, his pontential mother and one more adult, was reported in five occasions. The group was always in the same area where it was first recorded and showed the same position during swimming. Between first and last sighting of the white calf (113 days) the color has not changed. This is the first case of a white franciscana dolphin. This...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anomalously coloration; Pontoporia blainvillei; Franciscana dolphin; Albinism; Babitonga Bay.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301221

First record of partial albinism and scoliosis in Odontophrynus occidentalis tadpoles (Anura: Cycloramphidae)
Provedor de dados: 52
Autores: Sanabria,Eduardo Alfredo; Quiroga,Lorena Beatriz; Laspiur,Alejandro.
Albinism has been widely reported for diverse group of vertebrates. However, scoliosis is a rare abnormality. In this work, the first record of partial albinism and scoliosis case in tadpole of the frog Odontophrynus occidentalis is being presented. The individual was captured in Quebrada de las Flores, Sierra Pie de Palo, Caucete Department, San Juan Province, Argentina.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Albinism; Scoliosis; Odontophrynus occidentalis; San Juan; Argentina.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000300019

First record of albinism in the smooth dogfish Mustelus Schimitti Springer, 1939 (Carcharhiniformes - Triakidae) from Southern Brazil
Provedor de dados: 52
Autores: Teixeira,Simone Ferreira; Araújo,Maria Lúcia Góes de.
This paper reports on a subadult male specimen of the smooth dogfish, Mustelus schimitti, caught in the continental shelf of Rio Grande Sul, during winter of 1993, which exhibited the characteristics of total albinism.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Albinism; Mustelus schimitti; Carcharhiniformes; Triakidae.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000200017

Tracing key genes associated with the Pinctada margaritifera albino phenotype from juvenile to cultured pearl harvest stages using multiple whole transcriptome sequencing
Provedor de dados: 5
Autores: Auffret, Pauline; Le Luyer, Jeremy; Sham Koua, Manaarii; Quillien, Virgile; Ky, Chin-long.
Background Albino mutations are commonly observed in the animal kingdom, including in bivalves. In the black-lipped pearl oyster Pinctada margaritifera, albino specimens are characterized by total or partial absence of colouration resulting in typical white shell phenotype expression. The relationship of shell colour with resulting cultured pearl colour is of great economic interest in P. margaritifera, on which a pearl industry is based. Hence, the albino phenotype provides a useful way to examine the molecular mechanisms underlying pigmentation. Results Whole transcriptome RNA-sequencing analysis comparing albino and black wild-type phenotypes at three stages over the culture cycle of P. margaritifera revealed a total of 1606, 798 and 187 differentially...
Tipo: Text
Palavras-chave: Pinctada margaritifera; Albinism; Pigmentation; RNA-seq; Notch signaling pathway; Tyrosinase; Biomineralization.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00652/76420/77477.pdf

An albino armored catfish Schizolecis guntheri (Siluriformes: Loricariidae) from an Atlantic Forest coastal basin
Provedor de dados: 83
Autores: Brito,Marcelo F. G. de; Caramaschi,Érica P.
We report here on an albino specimen of Schizolecis guntheri caught in the rio Bonito in the rio Macaé basin, Rio de Janeiro State, southeastern Brazil. The hypothesis that albinism is more common in fishes with cryptobiotic and/or nocturnal habits is strengthened by additional records of this chromatic anomaly.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Albinism; Hypoptopomatinae; Neotropical; Rio Macaé basin; Southeastern Brazil.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000100009

Primer registro de albinismo en la Familia Muraenesocidae (Pisces: Anguilliformes), Cynoponticus savanna (Bancroft)
Provedor de dados: 20
Autores: Rey-C., I.; Acero-P., A.
Se registra por primera vez el fenómeno de albinismo en la familia de peces Muraenesocidae, con base en dos ejemplares de Cynoponticits savanna capturados en la Península de la Guajira. Caribe colombiano.
Tipo: Journal Contribution
Palavras-chave: Fisheries; Albinism; New records; Fisheries; Albinism; Http://aims.fao.org/aos/agrovoc/c_2934; Http://aims.fao.org/aos/agrovoc/c_244.
Ano: 1982
URL: http://hdl.handle.net/1834/3963