Algae With Three Sexes That All Mate In Pairs

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P. starrii is a species of algae in Japan that has three sexes: male, female, and bisexual; the last of which produces both male and female sex cells. In contrast to hermaphroditism, bisexual P. starrii evolve from natural gene expression. These algae arise when they have a bisexual-factor gene, but only in tandem with OTOKOGI, a male-specific gene. Female P. starrii can carry the bisexual factor gene and pass it on to their offspring. Read full article here

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