Results 41 to 50 of about 3,091 (181)

Sequence Variation of Melanocortin 1 Receptor (MC1R) Gene and Association with Plumage Color in Domestic Geese

The Journal of Poultry Science, 2014
In contrast to other domestic and wild animals, the genetic variation of MC1R gene and association with plumage color has not been investigated in domestic goose.
Jing Huang, Bing Zhou, Da-Qian He, Shi-Yi Chen, Qing Zhu, Yong-Gang Yao, Yi-Ping Liu   +6 more
doaj   +1 more source

Assessment of the Expression of Phenotypic Traits in Male and Female Indigenous Chickens (Gallus gallus domesticus L.) in Rajshahi, Bangladesh [PDF]

Journal of Genetic Resources
This study aimed to identify and describe phenotypic traits of indigenous chicken (Gallus gallus domesticus L.) populations in five market sites in Rajshahi City, Bangladesh: Shaheb Bazar (S1), Court Bazar (S2), Vodra Bazar (S3), Binodpur Bazar (S4), and
Md. Rahman, M Rahman, Saiful Faruki
doaj   +1 more source

Social environment affects acquisition and color of structural nuptial plumage in a sexually dimorphic tropical passerine. [PDF]

PLoS ONE, 2012
Structural colors result from the physical interaction of light with organic materials of differing refractive indexes organized at nanoscale dimensions to produce significant interference effects.
Rafael Maia, Luiza Brasileiro, Roberto V Lacava, Regina H Macedo   +3 more
doaj   +1 more source

Investigation of MC1R SNPs and Their Relationships with Plumage Colors in Korean Native Chicken [PDF]

Asian-Australasian Journal of Animal Sciences, 2013
The melanocortin 1 receptor (MC1R) gene is related to the plumage color variations in chicken. Initially, the MC1R gene from 30 individuals was sequenced and nine polymorphisms were obtained. Of these, three and six single nucleotide polymorphisms (SNPs)
M. R. Hoque, S. Jin, K. N. Heo, B. S. Kang, C. Jo, J. H. Lee   +5 more
doaj   +1 more source

Disentangling the mechanisms of signal evolution in Tyrannidae flycatchers, part II: plumage elaboration evolved with migration behavior, but is also affected by diet, climate, and drift

Journal of Field Ornithology, 2023
Animal coloration is an important communication signal that varies among taxa and affects survival and reproduction. Species-specific color is influenced by a variety of factors including phylogeny, predation, sexual selection, light and resource ...
Sydney M Miller, Jacqueline Schoen, Matthew W. Reudink, Sean M Mahoney   +3 more
doaj   +1 more source

Inheritance of plumage color in poultry [PDF]

Experimental Biology and Medicine, 1910
The experiments of Dr. C. C. Guthrie who transplanted hens'ovaries to foster mothers of different plumage color from their own and was led to the conclusion that the engrafted ovaries became functional and their eggs gained certain characteristics from the foster mothers'are not at all convincing to the student of normal heredity of plumage color in ...
openaire   +1 more source

Qualitative traits and genetic characterization of native chicken (Gallus gallus domesticus) in selected areas of Eastern and Western Samar, Philippines

Annals of Tropical Research, 2020
The Philippines has a number of chicken genetic groups, mostly of non-descript and indigenous type. In view of the need to expand the information on native chicken diversity, this study was conducted to identify distinct qualitative traits and estimate ...
Cyrill John P. Godinez, Masahide Nishibori, Dinah M. Espina   +2 more
doaj   +1 more source

Subtle sexual plumage color dimorphism and size dimorphism in a South American colonial breeder, the Monk Parakeet (Myiopsitta monachus)

Avian Research, 2020
Background Parrots (Psittacidae Family) are one of the most colorful groups of birds in the world, their colors produced both structurally and via unusual pigments (psittacofulvins). Most species are considered to be monogamous, and many have been viewed
Macarena Morales, Deysi J. Gigena, Santiago M. Benitez-Vieyra, Diego J. Valdez   +3 more
doaj   +1 more source

Convergent evolution of parrot plumage coloration

PNAS Nexus
Abstract Parrots have remarkable plumage coloration that result in part from a unique ability to produce pigments called psittacofulvins that yield yellow to red feather colors. Little is known about the evolution of psittacofulvin-based pigmentation.
Fushi Ke, Henriëtte van der Zwan, Emily Shui Kei Poon, Alison Cloutier, Dirk Van den Abeele, Rencia van der Sluis, Simon Yung Wa Sin   +6 more
openaire   +2 more sources

Female plumage coloration signals status to conspecifics

Animal Behaviour, 2016
Intrasexual competition in female birds is a widespread phenomenon but remains scarcely explored. Females compete for limited resources and the expression of signals that indicate their social status will be favoured by natural selection, generating a dominance hierarchy among individuals.
D. López-Idiáquez, P. Vergara, J.A. Fargallo, J. Martínez-Padilla   +3 more
openaire   +2 more sources