Benefits of self discrimination in roots

Experiments clearly demonstrated that plants competing with clonal sibling plants invested more in clonal reproduction as compared to plants competing with non-siblings.

Kalanchoë daigremontiana (Credit: Yamawo et al.)

Some plants express self discrimination in their roots, which allows them to preferentially reduce antagonistic interactions and increase facilitative interactions with genetically identical ramets or individuals. However, our understanding of how self discrimination contributes to reproduction in plants is limited. In a recent study published in AoB PLANTS, Yamawo et al. set up a competition experiment in which Kalanchoë daigremontiana plants were grown with a self or non-self plant for 30 days. They found that plants competing with a clonal self plant produced more clonal plantlets than plants competing with a non-self plant. They concluded that self discrimination is adaptive in the clonal plant K. daigremontiana.


AoB PLANTS is an open-access, online journal that publishes peer-reviewed articles on all aspects of environmental and evolutionary biology. Published by Oxford University Press, AoB PLANTS provides a fast-track pathway for publishing high-quality research, where papers are available online to anyone, anywhere free of charge. Reasons to publish in AoB PLANTS include double-blind peer review of manuscripts, rapid processing time and low open-access charges.

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