Genetically modified animals are designed to contain the spread of pathogens. One prerequisite for the release of such organisms into the environment is that the new gene variant does not spread ...

Ecological and microevolutionary processes impacting parasite populations are increasingly being studied using population genetic analyses (reviewed by Criscione et al., 2005; de Meeûs et al., 2007; ...

For female sheep, size matters. It has long been known that rams with big horns father twice as many lambs as those with small or no horns. Two years back, a team of scientists identified the gene in ...

Genetically modified organisms must not be allowed to spread uncontrollably. Scientists are therefore keen to take advantage of a mechanism that will localise the spread of mutants. Mutants with a ...