Correlations and constraints - The Scientist - Magazine of the Life Sciences

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by Jonathan Weitzman

RESEARCH ROUND-UP

Correlations and constraints

Email: Jonathan Weitzman - jonathanweitzman@hotmail.com
News from The Scientist 2002, 3(1):20021128-01 doi:10.1186/20021128-01

28 November 2002

Genetic correlations between two phenotypic traits can impose constraints on evolutionary change. This correlation may be caused by pleiotropy (in which one genetic locus affects both traits) or by linkage disequilibrium (in which evolution maintains a non-random association between alleles at two distinct loci). In the November 28 Nature, Jeffrey Conner at Michigan State University, USA, describes correlations and constraints that influence the evolution of floral traits (Nature, 420:407-410, November 28, 2002).


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