Publication Date:
2003-10-11
Description:
Measures blocking hybridization would prevent or reduce biotic or environmental change caused by gene flow from genetically modified (GM) crops to wild relatives. The efficacy of any such measure depends on hybrid numbers within the legislative region over the life-span of the GM cultivar. We present a national assessment of hybridization between rapeseed (Brassica napus) and B. rapa from a combination of sources, including population surveys, remote sensing, pollen dispersal profiles, herbarium data, local Floras, and other floristic databases. Across the United Kingdom, we estimate that 32,000 hybrids form annually in waterside B. rapa populations, whereas the less abundant weedy populations contain 17,000 hybrids. These findings set targets for strategies to eliminate hybridization and represent the first step toward quantitative risk assessment on a national scale.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilkinson, Mike J -- Elliott, Luisa J -- Allainguillaume, Joel -- Shaw, Michael W -- Norris, Carol -- Welters, Ruth -- Alexander, Matthew -- Sweet, Jeremy -- Mason, David C -- New York, N.Y. -- Science. 2003 Oct 17;302(5644):457-9. Epub 2003 Oct 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Plant Sciences, The University of Reading, RG6 6AS, UK. m.j.wilkinson@rdg.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14551318" target="_blank"〉PubMed〈/a〉
Keywords:
Brassica napus/*genetics
;
Brassica rapa/*genetics
;
Crops, Agricultural/*genetics
;
Databases, Factual
;
Ecosystem
;
Genes, Plant
;
Genetics, Population
;
Great Britain
;
Hybridization, Genetic
;
*Plants, Genetically Modified
;
Pollen
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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