Biologists have revealed genetics behind the alternating sexes of walnut trees. The research reveals a mechanism that has been stable in walnuts and their ancestors going back 40 million years -- and ...

Trans-species polymorphism at primate Major Histocompatibility Complex genes is old, especially in the 'classical' genes, while rapidly-evolving regions of each gene correspond with proteins' ...

UC Davis graduate student Jeffrey Groh has discovered how walnut trees are able to produce flowers of different sexes at different times in the same season. The genetic mechanism is similar to sex ...

The genetics behind the alternating sexes of walnut trees has been revealed by biologists at the University of California, Davis. The research, published Jan. 3 in Science, reveals a mechanism that ...