How the plant immune system can drive the formation of new species

Plant geneticists know that not all plants from the same species can be successfully bred. Apparently, there are reproductive barriers that not only prevent the exchange of genes between well-established species (which goes to the very definition of a species), but also between varieties of one and the same species. How these barriers arise is of central importance if one wants to understand the origin of biodiversity.

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<p><a href="http://www.physorg.com/news108105749.html">How the plant immune system can drive the formation of new species</a></p> <p>Plant geneticists know that not all plants from the same species can be successfully bred. Apparently, there are reproductive barriers that not only prevent the exchange of genes between well-established species (which goes to the very definition of a species), but also between varieties of one and the same species. How these barriers arise is of central importance if one wants to understand the origin of biodiversity.</p>