Category Archives: Uncategorized

The genomic landscape of rapid repeated evolutionary adaptation to toxic pollution in wild fish

Introduction The pace of the evolutionary change depends on the existence of genetic variation, population size and intensity of the selection. While environmental change very often exceeds the rate of evolution for many species, killifish (Fundulus heteroclitus), living in U.S … Continue reading

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How the Galapagos cormorant lost its ability to fly

Introduction Novel traits play a key role in evolution by facilitating the access to new ecological niches. Novelty is often recognized at a phenotypic level and usually related to gain of new function. But can nature innovate through the loss … Continue reading

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Convergent evolution of caffeine in plants by co-option of exapted ancestral enzymes

A biochemical story on convergent evolution Introduction Convergent evolution is the process by which similar traits evolve independently in distantly related organisms, such as wings in bats and birds. This can target orthologous or unrelated genes, which gives a different … Continue reading

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A genomic history of Aboriginal Australia;

Blogpost on: Malaspinas et al 2016 A genomic history of Aboriginal Australia. Nature 538: 207–214. Introduction: Prior to the publication of Malaspinas et al. 2016, investigation of Aboriginal Australian genome sequences had been quite limited. In fact, only 3 whole genome … Continue reading

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The spotted gar genome illuminates vertebrate evolution and facilitates human-teleost comparisons

The spotted gar genome illuminates vertebrate evolution and facilitates human-teleost comparisons About 450 mya bony vertebrates radiated into Lobe-finned fish, from which tetrapods appeared later, and Ray-finned fish, which include Teleost (Fig.1). Nowadays they make up to 96 percent of … Continue reading

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The genetic sex-determination system predicts adult sex ratios in tetrapods

Genetic sex determination, i. e. the determination of sexual phenotypes by the effect of sex-determining genes, is found in the majority of vertebrates. Sex determination genes have evolved multiple times independently and can be located on different chromosomes. Depending on … Continue reading

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Supergenes and social organization in a bird species

      Cindy Dupuis, Xinji Li, Casper van der Kooi   The development of new molecular mechanisms and next generation sequencing techniques have advanced our knowledge on the genetic basis underlying phenotypic polymorphism. Over the coarse of recent years, … Continue reading

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Evolution of Darwin’s finches and their beaks revealed by genome sequencing

The recent formation and habitat diversity of the Galápagos archipelago, in conjunction with its relative isolation from the mainland, has helped the islands become rich in endemic species that have much to offer for the study of evolutionary biology. As … Continue reading

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Convergent evolution of the genomes of marine mammals

Introduction Convergent evolution is the independent evolution of similar features in species of different lineages. Marine mammals from different mammalian orders share several phenotypic traits adapted to the aquatic environment is a very classic example of convergent evolution. Although there are potentially several genomic … Continue reading

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The genomic landscape underlying phenotypic integrity in the face of gene flow in crows

In this paper authors returned to the question about the role of interspecific gene flow for the evolution and species diversification. Authors studied hybrid zone between two bird classes of the all-black carrion crows (Corvus corone) and the gray-coated hooded … Continue reading

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