Emergence of begomoviruses and DNA satellites associated with weeds and intercrops: a potential threat to sustainable production of cassava in Côte d'Ivoire

被引：0

作者：

Yoboue, Aya Ange Nate ^{[1
,2
]}

Kouakou, Bekanvie S. M. ^{[1
,2
]}

Pita, Justin S. ^{[1
,2
]}

N'Zue, Boni ^{[3
]}

Amoakon, William J. -L. ^{[2
,4
]}

Kouassi, Kan Modeste ^{[1
,2
]}

Vanie-Leabo, Linda Patricia L. ^{[1
,2
]}

Kouassi, Nazaire K. ^{[1
,2
]}

Sorho, Fatogoma ^{[1
]}

Zouzou, Michel ^{[1
]}

机构：

[1] Univ Felix Houphouet Boigny UFHB, UPR Physiol & Pathol Vegetales, Lab Biotechnol Agr & Valorisat Ressources Biol, UFR Biosci, Abidjan, Cote Ivoire

[2] Univ Felix Houphouet Boigny UFHB, Reg Ctr Excellence, Cent & West African Virus Epidemiol WAVE Transboun, Abidjan, Cote Ivoire

[3] Ctr Natl Rech Agron CNRA, Bouake, Cote Ivoire

[4] Univ Nangui Abrogoua UNA, UFR Sci Nat, Abidjan, Cote Ivoire

来源：

FRONTIERS IN PLANT SCIENCE | 2025年 / 16卷

关键词：

weeds; alternative hosts; cassava mosaic begomoviruses; West African Asystasia begomovirus (WAAV); alphasatellites; ASYSTASIA-GANGETICA; MOLECULAR CHARACTERIZATION; MOSAIC-VIRUS; TRANSMISSION; EVOLUTION; RECOMBINANT; POPULATIONS; INFECTION; AFRICA; HOSTS;

D O I：

10.3389/fpls.2025.1448189

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Cassava (Manihot esculenta Crantz) plays a significant role in the livelihoods of people in Africa, particularly in C & ocirc;te d'Ivoire. However, its production is threatened by begomoviruses which cause huge yield losses. Some weeds and food crops intercropped with cassava act as reservoirs, thereby facilitating the sustenance and propagation of Cassava mosaic begomoviruses (CMBs), along with other begomoviruses. To effectively manage these diseases, it is imperative to enhance our understanding of the various hosts of cassava viruses in C & ocirc;te d'Ivoire. Thus, a comprehensive nationwide survey was conducted in 2017 in cassava fields across C & ocirc;te d'Ivoire, and molecular analyses were performed on the samples collected. The results obtained from this survey indicated that 65 plant species belonging to 31 families were potential alternative hosts for CMBs in C & ocirc;te d'Ivoire. The molecular analyses revealed that four species, Capsicum annuum, Solanum melongena, Centrosema pubescens, and Asystasia gangetica exhibited differential affinities for both African cassava mosaic virus and East African cassava mosaic Cameroon virus. Additionally, other begomoviruses and new alphasatellites were identified. Soybean chlorotic blotch virus was isolated from C. pubescens while West African Asystasia virus 1, West African Asystasia virus 2, and a new Asystasia yellow mosaic alphasatellite were isolated from A. gangetica which appears to be a plant species that could favor the emergence of new viral species harmful to cassava cultivation. This study offers insights that will inform the development of more effective control methods for sustainable cassava production in C & ocirc;te d'Ivoire.

引用

页数：13