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Introgression of crop alleles into wild or weedy populations

Ellstrand, Norman C.; Meirmans, Patrick; Rong, Jun; Bartsch, Detlef; Ghosh, Atiyo; de Jong, Tom J.; Haccou, Patsy; Lu, Bao-Rong; Snow, Allison A.; Stewart, Jr., C. Neal; Strasburg, Jared L.; van Tienderen, Peter H.; Vrieling, Klaas; Hooftman, Danny. 2013 Introgression of crop alleles into wild or weedy populations. Annual Review of Ecology, Evolution, and Systematics, 44. 325-345. 10.1146/annurev-ecolsys-110512-135840

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Abstract/Summary

The evolutionary significance of introgression has been discussed for decades. Questions about potential impacts of transgene flow into wild and weedy populations brought renewed attention to the introgression of crop alleles into those populations. In the last past two decades, the field has advanced with considerable descriptive, experimental, and theoretical activity on the dynamics of crop gene introgression and its consequences. As illustrated by five case studies employing an array of different approaches, introgression of crop alleles has occurred for a wide array of species, sometimes without significant consequence, but on occasion leading to the evolution of increased weediness. A new theoretical context has emerged for analyzing empirical data, identifying factors that influence introgression, and predicting introgression’s progress. With emerging molecular techniques and analyses, research on crop allele introgression into wild and weedy populations is positioned to make contributions to both transgene risk assessment and reticulate evolution.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1146/annurev-ecolsys-110512-135840
Programmes: CEH Topics & Objectives 2009 - 2012 > Biodiversity > BD Topic 2 - Ecological Processes in the Environment
CEH Sections: Pywell
ISSN: 1543-592X
Additional Keywords: gene flow, hybridization, plant conservation genetics, transgene flow, evolution, invasiveness
NORA Subject Terms: Ecology and Environment
Botany
Date made live: 11 Nov 2013 16:18 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/503181

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