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In Extremis: Breaking Coalescent Models in Small Populations and Concerted Convergence of Mammalian Cyanide Adaptation

Understanding how populations and species evolve in response to their environment is a key objective of population and evolutionary genetics. Extremes are useful to understand both where current models break down and to build new ones. Coalescent …

On the Evolution and Diversification of Andean Hummingbirds

At first look, the harsh physical conditions of the Andes should impose serious physiological constraints on hummingbirds, but instead, they have a wide distribution and are abundant at high altitudes. Several studies suggest highland species are …

The Molecular Evolution of Bat Chemosensory Pathways Reveals Sensory Innovation and Loss

Chemosensation detects environmental chemical cues and mediates many behaviors directly related to fitness (e.g. finding food, mates). Mammals have a secondary chemosensory system known as vomerolfaction that is primarily attributed to detecting …

Historical biogeography of the Antilles: Earth history and phylogenetics of endemic chiropteran taxa

Vicariance and dispersal are the main hypotheses used to explain the distribution and diversification of taxa on both continents and islands. Research on the origin and diversification of island biotas is particularly appealing because these have …

Marcadores moleculares asociados a resistencia al virus de la hoja blanca de arroz (Oryza sativa L.)

Una población de 134 líneas autógamas recombinantes derivadas del cruce Fanny x Oryzica Llanos 5 fue evaluada cuantitativamente para resistencia al virus de hoja blanca en invernadero. La segregación de 74 marcadores RFLP provenientes del mapa …