9.04.2009

Homosexulaity in Nature

Homosexuality in yeast (pp 890-893; N&V)

The human pathogen Candida albicans can reproduce by a previously unappreciated route, a Nature paper reveals. Until recently, the infection-causing yeast was thought to be strictly asexual, but then sexual reproduction was observed between cells of different sexes. Richard Bennett and colleagues now show that, in certain circumstances, sexual reproduction can also occur between cells of the same sex. This mode of reproduction occurs when a gene encoding a secreted protease enzyme is lacking. The study indicates a role for specialized sexual cycles in the survival and adaptation of disease-causing fungi.