Easy There, Bro: A plant can spot and favor close kin

By Susan Milius, 15:57 PM April 15, 2008

A little beach plant can recognize other plants that grew from its own mother's seeds, according to experiments on root growth.

Sibling sea rocket plants don't compete with each other as fiercely as unrelated plants do, reports Susan A. Dudley of McMaster University in Hamilton, Ontario.

Plenty of research in animals has found differences in responses to relatives versus non-kin. Determining what relationships plants can recognize has been murkier. Flowers of many species can tell their own po...

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