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Further changes in the cotton leaf curl disease complex: an indication of things to come?
- Source :
- Virus genes. 53(6)
- Publication Year :
- 2017
-
Abstract
- Cotton leaf curl disease (CLCuD) has been a problem for cotton production in Pakistan and India since the early 1990s. The disease is caused by begomoviruses associated with a specific satellite, the cotton leaf curl Multan betasatellite (CLCuMB). In 2001, resistance introduced into cotton was broken by a recombinant begomovirus, Cotton leaf curl Kokhran virus strain Burewala (CLCuKoV-Bur). Unusually, in resistant cotton, this virus lacked an intact transcriptional activator protein (TrAP) gene, with the capacity to encode only 35 of the usual ~134 amino acids. Recently, isolates of CLCuKoV-Bur with a longer, but still truncated, TrAP gene have been identified in cotton breeding lines lacking the earlier resistance. This suggests that more pathogenic viruses with a full TrAP could return to cotton if the earlier resistance is not maintained in ongoing breeding efforts to produce CLCuD-resistant cotton varieties. This conclusion is supported by recent studies showing the reappearance of pre-resistance-breaking begomoviruses, with full-length TrAP genes, in cotton.
- Subjects :
- 0301 basic medicine
Veterinary medicine
Genes, Viral
030106 microbiology
India
DNA, Satellite
Virus
03 medical and health sciences
Viral Proteins
Virology
Plant virus
Genetics
Pakistan
Plant breeding
Molecular Biology
Gene
Plant Diseases
Gossypium
biology
Begomovirus
food and beverages
General Medicine
biology.organism_classification
Cotton leaf curl Multan betasatellite
Plant Leaves
030104 developmental biology
Satellite Viruses
DNA, Viral
Satellite (biology)
Leaf curl
Subjects
Details
- ISSN :
- 1572994X
- Volume :
- 53
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Virus genes
- Accession number :
- edsair.doi.dedup.....d52db21277e5f7c5856ce6c4767c47b7