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Science 24 November 1995:
Vol. 270. no. 5240, p. 1297
DOI: 10.1126/science.270.5240.1297a
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Research News

Wade Roush

Boston--Scientists have argued that insects, which have unbranched limbs, and crustaceans--with branched ones--are two very distinct groups. New developmental evidence, however, points to a much closer relationship. Limb branching in both groups is a second-order phenomenon, scientists report, affected by a single gene, called Distal-less (Dll). It shouldn't be used to separate the groups, but to bring them together (see Report on p. 1363).




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Science. ISSN 0036-8075 (print), 1095-9203 (online)