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Dimensions: 7256 x 3860 px | 61.4 x 32.7 cm | 24.2 x 12.9 inches | 300dpi Date taken: 6 September 2016 Photographer: dpa More information: This image could have imperfections as its either historical or reportage.

2004 Oct 15;160(8):784-96

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Bioluminescence gene families and pathways To explore the origin of bioluminescence in fireflies, we summarized and expanded the pathway of metabolism of luciferin, the emitter of light, which only exist in luminous insects 6 , and investigated the candidate genes in the expanded luciferin metabolism (especially its biosynthesis) in the genomes of luminous beetles and non-luminous beetles (Supplementary Note 7)