The top image is taken from Roy Goodacre's paper (pp. 245-254) illustrating the role of metabolomic studies in understanding gene function. Underneath is a mass spectrum from John Halket's paper (pp. 219-243) illustrating the identification of Tomatine, and below that an illustration of two introgression lines of a cross between L. esculentum and L. pennellii compared with the wild type taken from Paul Quick's paper.
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