Now showing items 1-10 of 20
Evolutionary genomics and adaptive evolution of the Hedgehog gene family (Shh, Ihh and Dhh) in vertebrates.
(PLoS One, 2014)
The Hedgehog (Hh) gene family codes for a class of secreted proteins composed of two active domains that act as signalling molecules during embryo development, namely for the development of the nervous and skeletal systems ...
Comparative genomics reveals insights into avian genome evolution and adaptation
Gene loss, adaptive evolution and the co-evolution of plumage coloration genes with opsins in birds.
(BMC Genomics, 2015-10-06)
BACKGROUND: The wide range of complex photic systems observed in birds exemplifies one of their key evolutionary adaptions, a well-developed visual system. However, genomic approaches have yet to be used to disentangle the ...
Olfactory Receptor Subgenomes Linked with Broad Ecological Adaptations in Sauropsida.
(Mol Biol Evol, 2015-11)
Olfactory receptors (ORs) govern a prime sensory function. Extant birds have distinct olfactory abilities, but the molecular mechanisms underlining diversification and specialization remain mostly unknown. We explored OR ...
Complex evolutionary trajectories of sex chromosomes across bird taxa.
Sex-specific chromosomes, like the W of most female birds and the Y of male mammals, usually have lost most genes owing to a lack of recombination. We analyze newly available genomes of 17 bird species representing the avian ...
Convergent transcriptional specializations in the brains of humans and song-learning birds.
Song-learning birds and humans share independently evolved similarities in brain pathways for vocal learning that are essential for song and speech and are not found in most other species. Comparisons of brain transcriptomes ...
Genomic signatures of near-extinction and rebirth of the crested ibis and other endangered bird species.
(Genome Biol, 2014)
BACKGROUND: Nearly one-quarter of all avian species is either threatened or nearly threatened. Of these, 73 species are currently being rescued from going extinct in wildlife sanctuaries. One of the previously most ...
Phylogenomic analyses data of the avian phylogenomics project.
BACKGROUND: Determining the evolutionary relationships among the major lineages of extant birds has been one of the biggest challenges in systematic biology. To address this challenge, we assembled or collected the genomes ...
A refined model of the genomic basis for phenotypic variation in vertebrate hemostasis.
(BMC Evol Biol, 2015-06-30)
BACKGROUND: Hemostasis is a defense mechanism that enhances an organism's survival by minimizing blood loss upon vascular injury. In vertebrates, hemostasis has been evolving with the cardio-vascular and hemodynamic systems ...
Evidence for a single loss of mineralized teeth in the common avian ancestor.
Edentulism, the absence of teeth, has evolved convergently among vertebrates, including birds, turtles, and several lineages of mammals. Instead of teeth, modern birds (Neornithes) use a horny beak (rhamphotheca) and a muscular ...