Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2021, Vol. 42 ›› Issue (6): 1668-1677.DOI: 10.3969/j.issn.1000-2561.2021.06.023

• Plant Protection & Bio-safety • Previous Articles     Next Articles

Distribution and Pathogen Detection of Cassava Mosaic Virus Disease in China

WANG Guofen1, LI Chaoping1, SHI Tao1, ZHOU Sishan2, LI Boxun1, CAI Jimiao1, LIN Zhaowei1, HUANG Guixiu1,*()   

  1. 1. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences / Laboratory of Integrated Pest Management on Tropical Grops, Ministry of Agriculture and Rural Affairs, China / Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou, Hainan 571101, China
    2. College of Plant Protection, Hainan University, Haikou, Hainan 570228, China
  • Received:2020-06-23 Revised:2020-08-24 Online:2021-06-25 Published:2021-07-19
  • Contact: HUANG Guixiu

Abstract:

To clarify the disease situation, symptom types and pathogens of cassava mosaic virus disease in China, 19 locations in 8 provinces were investigated in 2018-2019, and 384 narcissus samples were collected. Data analysis results showed that cassava mosaic virus disease had already occurred in China Stem transportation was the main reason for the long-distance transmission of the disease. Specific primers of Sri Lankan cassava mosaic virus (SLCMV) and Cassava common mosaic virus (CsCMV) were used to detect the 384 samples. The results showed that SLCMV and CsCMV were detected in 21.1% and 36.5% samples, respectively. 15.1% samples were mix-infected by the two viruses. The sequence similarity between the detected SLVMV and Southeast Asian SLCMV was 99.4%-99.7%, and the sequence similarity between CsCMV and Latin America was 91%-96%. It indicates that domestic cassava mosaic disease is mainly caused by these two viruses, and theCommon mosaic virus may have some sequence mutation.

Key words: Manihot esculenta, Sri Lankan cassava mosaic virus (SLCMV), Cassava common mosaic virus (CsCMV), detection, mixed infection

CLC Number: