Results 61 to 70 of about 151,128 (279)

Gudgeon fish with and without genetically determined countershading coexist in heterogeneous littoral environments of an ancient lake

Ecology and Evolution, 2021
Countershading, characterized by a darker dorsal surface and lighter ventral surface, is common among many animals. This dorsoventral pigment polarity is often thought to be adaptive coloration for camouflage.
Tomoyuki Kokita, Kohtaro Ueno, Yo Y. Yamasaki, Masanari Matsuda, Ryoichi Tabata, Atsushi J. Nagano, Tappei Mishina, Katsutoshi Watanabe   +7 more
doaj   +1 more source

Faunal Composition, Wing Polymorphism and Seasonal Abundance of Some Flea Beetles (Coleoptera: Chrysomelidae) in Southern Quebec (Canada) [PDF]

, 2018
Chrysomelidae (51 taxa) were collected with flight intercept traps from May through October during 1987-1989, in four sites near a raspberry plantation in southern Quebec.
Levesque, Claire, Levesque, Gilles-Yvon
core   +2 more sources

Color plumage polymorphism and predator mimicry in brood parasites [PDF]

Frontiers in Zoology, 2013
Plumage polymorphism may evolve during coevolution between brood parasites and their hosts if rare morph(s), by contravening host search image, evade host recognition systems better than common variant(s). Females of the parasitic common cuckoo (Cuculus canorus) are a classic example of discrete color polymorphism: gray females supposedly mimic the ...
Trnka, Alfréd, Grim, Tomáš
openaire   +2 more sources

Mate Choice Contributes to the Maintenance of Shell Color Polymorphism in a Marine Snail via Frequency-Dependent Sexual Selection

Frontiers in Marine Science, 2020
Natural color polymorphisms are widespread across animal species and usually have a simple genetic basis. This makes them an ideal system to study the evolutionary mechanisms responsible for maintaining biodiversity. In some populations of the intertidal
Daniel Estévez, Daniel Estévez, Eugene Kozminsky, Antonio Carvajal-Rodríguez, Armando Caballero, Rui Faria, Juan Galindo, Emilio Rolán-Alvarez   +7 more
doaj   +1 more source

The heterozygote superiority hypothesis for polymorphic color vision is not supported by long-term fitness data from wild neotropical monkeys. [PDF]

PLoS ONE, 2014
The leading explanatory model for the widespread occurrence of color vision polymorphism in Neotropical primates is the heterozygote superiority hypothesis, which postulates that trichromatic individuals have a fitness advantage over other phenotypes ...
Linda M Fedigan, Amanda D Melin, John F Addicott, Shoji Kawamura   +3 more
doaj   +1 more source

Inheritance of disc flower color in Helianthus petiolaris [PDF]

, 2009
Disc flowers of Helianthus petiolaris (Asteraceae) are usually purple reddue to anthocyanin pigments in corolla lobes, style and stigma. However, yellow-flowered plants are occasionally found.
Delucchi, C., Gutierrez, Agustina, Poverene, María Mónica   +2 more
core   +1 more source

Fuzzy species limits in Mediterranean gorgonians (Cnidaria, Octocorallia): inferences on speciation processes [PDF]

, 2017
The study of the interplay between speciation and hybridization is of primary importance in evolutionary biology. Octocorals are ecologically important species whose shallow phylogenetic relationships often remain to be studied. In the Mediterranean Sea,
Anne Haguenauer, Aurelle, Baker, Beaumont, Bierne, Bierne, Boulay, Brucker, Calderón, Carpine, Concepcion, Costantini, Csilléry, Darriba, Darwin, Didier Aurelle, Excoffier, Faure, Feder, Ferrier-Pagès, Flot, Garrabou, Gori, Gori, Guindon, Hall, Hey, Hey, Hichem M. Kara, Hoegh-Guldberg, Huson, Isabelle D. Pivotto, Isomura, Knowles, Lamya Chaoui, Ledoux, Librado, Marine Malfant, Marti-Puig, Mauatassem B. Masmoudi, Mcfadden, McFadden, McFadden, Márcio A.G. Coelho, Müller, Nei, Nosil, Nur E. Topçu, Pante, Pante, Pey, Pivotto, Prada, Prada, Pratlong, Pratlong, Rieseberg, Rita Castilho, Ronquist, Roux, Roux, Roy, Sanchez, Shearer, Simmons, Sini, Stephens, Stephens, Thomas, Thompson, Tine, Venn, Vollmer, Wegmann, Wirshing   +74 more
core   +3 more sources

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

Molecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic, Anne Nørremølle, Lilian Bomme Ousager, Lars van Brakel Andersen, Marie Louise Mølgaard Binderup, Mads Thomassen   +5 more
wiley   +1 more source

Longitudinal circulating tumor DNA profiling in patients with advanced endometrial cancer using an off‐the‐shelf targeted NGS panel

Molecular Oncology, EarlyView.
Intratumour heterogeneity complicates precision management of advanced endometrial cancer. Circulating tumor DNA (ctDNA) offers a minimally invasive strategy to capture tumor evolution and therapeutic resistance. Here, we compare tumor‐agnostic NGS with tumor‐informed ddPCR, outlining their relative sensitivity, concordance, and clinical implications ...
Carlos Casas‐Arozamena, Karin Teien Lande, Eva Diaz, Ana Vilar, Juan Cueva, Efigenia Arias, Victoria Sampayo, Alicia Abalo, Nerea González, Eva Colás, Antonio Gil‐Moreno, Miguel Abal, Gema Moreno‐Bueno, Therese Sørlie, Kristina Lindemann, Laura Muinelo‐Romay   +15 more
wiley   +1 more source

A Noncoding Melanophilin Gene (MLPH) SNP at the Splice Donor of Exon 1 Represents a Candidate Causal Mutation for Coat Color Dilution in Dogs [PDF]

, 2017
Coat color dilution in several breeds of dog is characterized by a specific pigmentation phenotype and sometimes accompanied by hair loss and recurrent skin inflammation, the so-called color dilution alopecia or black hair follicular dysplasia.
Drögemüller, Cord, Günzel-Apel, Anne-Rose, Haase, Bianca, Leeb, Tosso, Philipp, Ute   +4 more
core