Global importance of cyst (Heterodera spp.) and lesion nematodes (Pratylenchus spp.) on cereals : distribution, yield loss, use of host resistance and integration of molecular tools
Material type:
ArticleLanguage: English Series: Nematology Monographs and Perspectives ; 2Publication details: Leiden (Netherlands) : Brill, 2003.Description: p. 233-252ISBN: - 978-90-04-13921-3
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Book part | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Staff Publications Collection | CIS-4275 (Browse shelf(Opens below)) | 1 | Available | 630562 |
Draft version
The sedentary cereal cyst nematodes (CCN, Heterodera spp.) and the migratory endoparasitic root lesion nematodes (RLN, Pratylenchus spp.) have global distributions and can cause significant yield losses in cereals worldwide. While species within each genus are difficult to distinguish morphologically, techniques based on DNA polymorphism have proved to be valuable tools for species identification. The distribution, taxonomy and crop yield losses caused are discussed and compared for both types of nematodes. Resistance is one of the major control measures to reduce populations of nematodes below damaging thresholds and, through extensive screening, several sources of plant resistance for both CCN and RLN have now been identified from alien species, landrace materials and improved cultivars. The introgression of this material into wheat breeding programmes is discussed, particularly with reference to the application of molecular tools. With further understanding of the distribution and importance of both CCN and RLN, the utilisation of these resistant sources should reduce losses caused by these nematodes.
Global Wheat Program
Text in English
0501|AL-ABC Program
INT2410
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