Deciphering the evolution of herbicide resistance in weeds.

Deciphering the evolution of herbicide resistance in weeds.
Trends Genet. 2013 Jul 2;
Authors: Délye C, Jasieniuk M, Le Corre V
Abstract
Resistance to herbicides in arable weeds is increasing rapidly worldwide and threatening global food security. Resistance has now been reported to all major herbicide modes of action despite the development of resistance management strategies in the 1990s. We review here recent advances in understanding the genetic bases and evolutionary drivers of herbicide resistance that highlight the complex nature of selection for this adaptive trait. Whereas early studied cases of resistance were highly herbicide-specific and largely under monogenic control, cases of greatest concern today generally involve resistance to multiple modes of action, are under polygenic control, and are derived from pre-existing stress response pathways. Although 'omics' approaches should enable unraveling the genetic bases of complex resistances, the appearance, selection, and spread of herbicide resistance in weed populations can only be fully elucidated by focusing on evolutionary dynamics and implementing integrative modeling efforts.
PMID: 23830583 [PubMed - as supplied by publisher]

Source: Trends in Genetics : TIG - July 2, 2013 Category: Genetics & Stem Cells Authors: Délye C, Jasieniuk M, Le Corre V Tags: Trends Genet Source Type: research