Cassava Mosaic Disease (CMD) Caused by White Fly Transmitted : A Part from the Book Chapter : Identifying New Species of Cassava Mosaic Begomovirus and Ageratum Leaf Curl Cameroon Virus on Pepper (Capsicum annuum L.) in Togo

Cassava mosaic disease (CMD) caused by white fly transmitted begomoviruses is the main factor of cassava (Manihot esculenta Crantz) decrease yields. Eight cassava mosaic begomovirus species have been reported in Africa of which three species affect cassava in Togo: ACMV (African cassava mosaic virus), EACMV (East African cassava mosaic virus) and ICMV (Indian cassava mosaic virus). Begomoviruses are also reported in pepper (Capsicum sp.) which can be intercropped with cassava. Pepper is an important cash crop for smallholder farmers in developing countries. Among the five cultivated species of the genus Capsicum, Capsicum annuum (both hot and sweet pepper) is the most widely cultivated. In cassava production, pepper is often intercropped with it in Togo.

This study was initiated to identify cassava begomoviruses on other crops in cassava intercropping systems. The results of this study will help to better understand the disease epidemics, related to white fly transmitted begomoviruses as well as Bemisia tabaci biotypes behavior within these systems.

Author(s) Details:

Kodjovi Atassé Dansou Kodjo
Laboratory of Plant Virology and Biotechnology (LVBV), Ecole Supérieure d’Agronomie (ESA), University of Lome, Lomé, Togo abd Laboratory of Agroecology, Ecophysiology and Integrative Biology (AEB), Unit EDYSAN FRE 3498 CNRS/University of Picardie Jules Verne, Amiens, France.

Assion Sétu Mivedor
Laboratory of Plant Virology and Biotechnology (LVBV), Ecole Supérieure d’Agronomie (ESA), University of Lome, Lomé, Togo.

Kossikouma Djodji Adjata
Laboratory of Plant Virology and Biotechnology (LVBV), Ecole Supérieure d’Agronomie (ESA), University of Lome, Lomé, Togo.

Jérôme Duclercq
Laboratory of Agroecology, Ecophysiology and Integrative Biology (AEB), Unit EDYSAN FRE 3498 CNRS/University of Picardie Jules Verne, Amiens, France.

Yawovi Mawuena Dieudonné Gumedzoe
Laboratory of Plant Virology and Biotechnology (LVBV), Ecole Supérieure d’Agronomie (ESA), University of Lome, Lomé, Togo.


Also See : SPCSV is Transmitted by the Whitefly Especially Bemisia Tabaci: A Part from The Book Chapter: Management of Sweet Potato Virus Disease Using Prophylactic Measure Strategy


Recent Global Research Developments in Managing Cassava Mosaic Disease in Southeast Asia

Cassava Mosaic Disease in South and Southeast Asia: Current Status and Prospects:

  • This comprehensive review article discusses CMD caused by cassava mosaic geminivirus (CMG).
  • CMD is a major constraint to cassava cultivation in Asia, caused by the Indian cassava mosaic virus and Sri Lankan cassava mosaic virus.
  • Strategies such as phytosanitation, vector control, breeding, and genetic engineering are widely adopted to manage CMD.
  • The estimated annual crop loss due to CMD is USD 1.9–2.7 billion [1].

Cassava Mosaic Disease and Its Management in Southeast Asia:

  • This review focuses on the current outbreak of CMD caused by the Sri Lankan cassava mosaic virus (SLCMV) in Southeast Asia.
  • Similarities between SLCMV and other cassava mosaic begomoviruses are summarized [2].

References

  1. Hareesh PS, Resmi TR, Sheela MN and Makeshkumar T (2023) Cassava mosaic disease in South and Southeast Asia: current status and prospects. Front. Sustain. Food Syst. 7:1086660. doi: 10.3389/fsufs.2023.1086660
  2. Uke, A., Tokunaga, H., Utsumi, Y. et al. Cassava mosaic disease and its management in Southeast Asia. Plant Mol Biol 109, 301–311 (2022). https://doi.org/10.1007/s11103-021-01168-2

To Read the Complete Chapter See Here

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