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| Title: Molecular ecology and emergence of tropical plant viruses .
| | Author: Fargette D KonatEG Fauquet C Muller E Peterschmitt M Thresh JM .
| | Journal: Citation: V : 44 ( ) P : 235-60 Year: Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub16784403 Accession (PMID): 16784403 | | Abstract: An appreciation of the risks caused by emergent plant viruses is critical in tropical areas that rely heavily on agriculture for subsistence and rural livelihood .
Molecular ecology , within 10 years , has unraveled the factors responsible for the emergence of several of the economically most important tropical plant viruses : Rice yellow mottle virus ( RYMV ) , Cassava mosaic geminiviruses ( CMGs ) , Maize streak virus ( MSV ) , and Banana streak virus ( BSV ) .
A large range of mechanisms--most unsuspected until recently--were involved : recombination and synergism between virus species , new vector biotypes , genome integration of the virus , host adaptation , and long-distance dispersal A complex chain of molecular and ecological events resulted in novel virus-vector-plant-environment interactions that led to virus emergence .
It invariably involved a major agricultural change : crop introduction , cultural intensification , germplasm movement , and new genotypes .
A current challenge is now to complement the analysis of the causes by an assessment of the risks of emergence .
Recent attempts to assess the risks of emergence of virulent virus strains are described .
| Matching Sentences:
[ Sen. 2, subscore: 1.00 ]: Molecular ecology , within 10 years , has unraveled the factors responsible for the emergence of several of the economically most important tropical plant viruses : Rice yellow mottle virus ( RYMV ) , Cassava mosaic geminiviruses ( CMGs ) , Maize streak virus ( MSV ) , and Banana streak virus ( BSV ) .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
