Color Polymorphism
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Detection of Snps in the Melanocortin 1-Receptor (MC1R) and Its Association with Shank Color Trait in Hs Chicken
ABSTRACT The melanocortin 1 receptor (MC1R) gene plays a key role in controlling the deposition of melanin. In mammals, the MC1Rgene is regarded as a major candidate gene in the control of melanin formation. In domestic animals, the MC1R gene mainly controls the expression of coat, skin, and plumage color in mammals and birds. In order to breed chickens with
Braz. J. Poult. Sci.. Publicado em: 25/11/2019
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2. Effects of melanocortin 1 receptor (MC1R) gene polymorphisms on plumage color in mule ducks
ABSTRACT The objective of the present study was to investigate the effect of single nucleotide polymorphism (SNP) of the melanocortin 1 receptor (MC1R) gene on plumage coloration in mule ducks. PCR-high-resolution melting analysis (PCR-HRM) and DNA sequencing were used to identify the SNP variability of the MC1R gene in white common ducks. Three non-synonymo
R. Bras. Zootec.. Publicado em: 22/07/2019
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3. Exaggerated blood pressure response during the exercise treadmill test as a risk factor for hypertension
Exaggerated blood pressure response (EBPR) during the exercise treadmill test (ETT) has been considered to be a risk factor for hypertension. The relationship of polymorphisms of the renin-angiotensin system gene with hypertension has not been established. Our objective was to evaluate whether EBPR during exercise is a clinical marker for hypertension. The s
Braz J Med Biol Res. Publicado em: 19/04/2013
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4. Developmental biology, polymorphism and ecological aspects of Stiretrus decemguttatus (Hemiptera, Pentatomidae), an important predator of cassidine beetles
Developmental biology, polymorphism and ecological aspects of Stiretrus decemguttatus (Hemiptera, Pentatomidae), an important predator of cassidine beetles. Stiretrus decemguttatus is an important predator of two species of cassidine beetles, Botanochara sedecimpustulata (Fabricius, 1781) and Zatrephina lineata (Fabricius, 1787) (Coleoptera, Cassidinae), on
Rev. Bras. entomol.. Publicado em: 2013-03
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5. Color signals in retina and lateral geniculate nucleus of marmoset monkeys
Marmosets show sex-linked polymorphism of color vision, whereby all males and some females show dichromatic ("red-green color-blind") vision based on two classes of photoreceptor sensitive to short or medium wavelength bands. Most female marmosets by contrast express three photoreceptor classes, one sensitive to short wavelengths and two classes in the mediu
Psychol. Neurosci.. Publicado em: 2013
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6. Citogenética comparativa em espécies de Hypostomus (Siluriformes, Loricariidae, Hypostominae) : contribuição da fração repetitiva do genoma para a diversidade cromossômica do grupo
Hypostomus is the widest genus of the armored catfishes in South America. This group presents a great diversity in color pattern and morphology, and shows not conservative chromosomal features. Different classes of repetitive DNAs have distinct evolutionary dynamics in the genome of eukaryotes. Therefore, analyses and distribution of these sequences in chrom
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/11/2012
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7. Genetic variation among species, races, forms and inbred lines of lac insects belonging to the genus Kerria (Homoptera, Tachardiidae)
The lac insects (Homoptera: Tachardiidae), belonging to the genus Kerria, are commercially exploited for the production of lac. Kerria lacca is the most commonly used species in India. RAPD markers were used for assessing genetic variation in forty-eight lines of Kerria, especially among geographic races, infrasubspecific forms, cultivated lines, inbred line
Genetics and Molecular Biology. Publicado em: 2011
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8. Carotenoid biosynthesis structural genes in carrot (Daucus carota): isolation, sequence-characterization, single nucleotide polymorphism (SNP) markers and genome mapping.
Carotenoid pigments are important components of the human diet and carrots are the main dietary sources of the vitamin A precursors IX- and /3- carotene. Carotenoids play essential biological roles in plants and the genes coding for the carotenoid pathway enzymes are evolutionarily conserved, but little information exists about these genes for carrot. In thi
Theoretical and Applied Genetics. Publicado em: 2011
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9. Advances in biliary atresia : from patient care to research
Biliary atresia, the most common cause of liver transplantation in children, remains a challenge for clinicians and investigators. The development of new therapeutic options, besides the typical hepatoportoenterostomy, depends on a greater understanding of its pathogenesis and how it relates to the clinical phenotypes at diagnosis and the rate of disease pro
Publicado em: 2011
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10. Advances in biliary atresia: from patient care to research
Biliary atresia, the most common cause of liver transplantation in children, remains a challenge for clinicians and investigators. The development of new therapeutic options, besides the typical hepatoportoenterostomy, depends on a greater understanding of its pathogenesis and how it relates to the clinical phenotypes at diagnosis and the rate of disease pro
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-06
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11. Temperature, urbanization and body color polymorphism in south brazilian populations of Drosophila kikkawai (Diptera, Drosophilidae)
Body color polymorphism of urban populations of cosmopolite fly Drosophila kikkawai Burla, 1954 was investigated in relation to its possible association with environmental temperature. Samples of D. kikkawai were collected in spring, summer, autumn and winter between 1987 to 1988, in zones with different levels of urbanization in the southern Brazilian city
Publicado em: 2010
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12. Variación geográfica de Ninia atrata en Colombia (Colubridae: Dipsadinae)
The distribution and geographic variation of Ninia atrata in Colombia are investigated based on 128 specimens from more than 24 localities. The Colombian specimens exhibit considerable polymorphism in color patterns. Differentiation occurs between cis-Andean and trans-Andean populations in coloration and form of the nape band and in seven of twelve morphomet
Papéis Avulsos de Zoologia (São Paulo). Publicado em: 2009