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Gene expression and the evolution of insect polyphenisms †
Author(s) -
Evans Jay D.,
Wheeler Diana E.
Publication year - 2001
Publication title -
bioessays
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.175
H-Index - 184
eISSN - 1521-1878
pISSN - 0265-9247
DOI - 10.1002/1521-1878(200101)23:1<62::aid-bies1008>3.0.co;2-7
Subject(s) - biology , insect , gene , genome , evolutionary biology , genetic architecture , phenotype , genetics , expression (computer science) , gene expression , computational biology , ecology , computer science , programming language
Polyphenic differences between individuals arise not through differences at the genome level but as a result of specific cues received during development. Polyphenisms often involve entire suites of characters, as shown dramatically by the polyphenic castes found in many social insect colonies. An understanding of the genetic architecture behind polyphenisms provides a novel means of studying the interplay between genomes, gene expression and phenotypes. Here we discuss polyphenisms and molecular genetic tools now available to unravel their developmental bases in insects. We focus on several recent studies that have tracked gene‐expression patterns during social insect caste determination. BioEssays 23:62–68, 2001. Published 2001 John Wiley & Sons, Inc.