Tomato Leaf Curl New Delhi Virus: An Emerging Virus Complex Threatening Vegetable and Fiber Crops

Viruses

Shelly Praveen¹  Supriya Chakraborty²  Enrique Moriones³ 

[1] Advanced Center for Plant Virology, Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi 110 012, India;Molecular Virology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110 067, India;Subtropical and Mediterranean Horticulture Institute “La Mayora” (IHSM-UMA-CSIC), Consejo Superior de Investigaciones Científicas, La Mayora Experimental Station, 29750 Algarrobo-Costa, Málaga, Spain;

关键词: tomato leaf curl New Delhi virus;    ToLCNDV;    recombination;    genetic diversity;    control;    epidemics;    genome structure;    host adaptation;    DNA satellites;    resistance;   

DOI  :  10.3390/v9100264

来源: DOAJ

【 摘 要 】

The tomato leaf curl New Delhi virus (ToLCNDV) (genus Begomovirus, family Geminiviridae) represents an important constraint to tomato production, as it causes the most predominant and economically important disease affecting tomato in the Indian sub-continent. However, in recent years, ToLCNDV has been fast extending its host range and spreading to new geographical regions, including the Middle East and the western Mediterranean Basin. Extensive research on the genome structure, protein functions, molecular biology, and plant–virus interactions of ToLCNDV has been conducted in the last decade. Special emphasis has been given to gene silencing suppression ability in order to counteract host plant defense responses. The importance of the interaction with DNA alphasatellites and betasatellites in the biology of the virus has been demonstrated. ToLCNDV genetic variability has been analyzed, providing new insights into the taxonomy, host adaptation, and evolution of this virus. Recombination and pseudorecombination have been shown as motors of diversification and adaptive evolution. Important progress has also been made in control strategies to reduce disease damage. This review highlights these various achievements in the context of the previous knowledge of begomoviruses and their interactions with plants.

【 授权许可】

Unknown