PMID- 34219746
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240402
IS  - 0003-4746 (Print)
IS  - 1744-7348 (Electronic)
IS  - 0003-4746 (Linking)
VI  - 178
IP  - 3
DP  - 2021 May
TI  - South West and North Central Nigeria: Assessment of cassava mosaic disease and 
      field status of African cassava mosaic virus and East African cassava mosaic 
      virus.
PG  - 466-479
LID - 10.1111/aab.12647 [doi]
AB  - Cassava mosaic disease (CMD), caused by cassava mosaic begomoviruses (CMBs), is a 
      major threat to cassava production in Nigeria. The predominant CMBs in Nigeria 
      are African cassava mosaic virus (ACMV), East African cassava mosaic virus 
      (EACMV) and East African cassava mosaic Cameroon virus (EACMCV), which are 
      transmitted through infected stem cuttings and whitefly vectors. This study was 
      conducted in 2015 and 2017 to assess the epidemiology of CMD and the current 
      distribution of CMBs in cassava farms in South West (SW) and North Central (NC) 
      Nigeria. A survey of cassava farms was undertaken, and samples representative of 
      disease symptoms were collected and assessed using molecular techniques. A total 
      of 184 and 328 cassava farms were sampled in 2015 and 2017, respectively. CMD 
      incidence for both regions surveyed was 43.80 and 12.25% in 2015 and 2017, 
      respectively. Fields in SW recorded a higher incidence rate in 2015 (SW: 45.11%, 
      NC: 42.47%), while the reverse occurred in 2017 (SW: 10.90%, NC: 14.01%). 
      Overall, the CMD incidence in Benue State (NC) was significantly higher than 
      other locations surveyed in both years. CMD symptom severity and mean whitefly 
      population were higher in SW Nigeria in the two survey years. ACMV was widespread 
      across both zones, occurring in 79.1% (453/613) and 54.8% (386/704) of cassava 
      leaf samples analysed in 2015 and 2017, respectively. EACMV was detected in only 
      6.0% (37/613) and 4.7% (33/704) of all cassava leaf samples analysed in 2015 and 
      2017, respectively. Overall, a higher proportion of infected samples were found 
      in NC in both 2015 (NC: 85.2%, SW: 75.4%) and 2017 (NC: 73.6%, SW: 45.2%). 
      Detection using strain-specific primers revealed that 97% of EACMV positive 
      samples were indeed infected by the EACMCV strain of the virus. As previously 
      reported, samples with mixed infections showed a higher symptom severity than 
      samples with single ACMV or EACMV infections. This study provides an update to 
      the distribution of CMBs in SW and NC Nigeria and will be useful in development 
      of monitoring and management strategies for the disease in both regions.
CI  - (c) 2020 The Authors. Annals of Applied Biology published by John Wiley & Sons Ltd 
      on behalf of Association of Applied Biologists.
FAU - Eni, Angela O
AU  - Eni AO
AUID- ORCID: 0000-0002-9476-9050
AD  - Department of Biological Sciences, College of Science and Technology Covenant 
      University Ota Nigeria.
AD  - West African Virus Epidemiology (WAVE) for Root and Tuber Crops Ota Nigeria.
FAU - Efekemo, Oghenevwairhe P
AU  - Efekemo OP
AD  - Department of Biological Sciences, College of Science and Technology Covenant 
      University Ota Nigeria.
AD  - West African Virus Epidemiology (WAVE) for Root and Tuber Crops Ota Nigeria.
FAU - Onile-Ere, Olabode A
AU  - Onile-Ere OA
AD  - Department of Biological Sciences, College of Science and Technology Covenant 
      University Ota Nigeria.
AD  - West African Virus Epidemiology (WAVE) for Root and Tuber Crops Ota Nigeria.
FAU - Pita, Justin S
AU  - Pita JS
AD  - Laboratory of Plant Physiology Universite Felix Houphouet-Boigny (UFHB) Abidjan 
      Cote d'Ivoire.
LA  - eng
PT  - Journal Article
DEP - 20201019
PL  - England
TA  - Ann Appl Biol
JT  - The Annals of applied biology
JID - 0064717
PMC - PMC8246719
OTO - NOTNLM
OT  - ACMV
OT  - Bemisia tabaci
OT  - CMD
OT  - EACMV
OT  - Manihot esculenta Crantz
OT  - Nigeria
COIS- The authors declare that they have no known conflict of interest.
EDAT- 2021/07/06 06:00
MHDA- 2021/07/06 06:01
PMCR- 2021/07/01
CRDT- 2021/07/05 09:49
PHST- 2019/12/20 00:00 [received]
PHST- 2020/05/12 00:00 [revised]
PHST- 2020/09/14 00:00 [accepted]
PHST- 2021/07/05 09:49 [entrez]
PHST- 2021/07/06 06:00 [pubmed]
PHST- 2021/07/06 06:01 [medline]
PHST- 2021/07/01 00:00 [pmc-release]
AID - AAB12647 [pii]
AID - 10.1111/aab.12647 [doi]
PST - ppublish
SO  - Ann Appl Biol. 2021 May;178(3):466-479. doi: 10.1111/aab.12647. Epub 2020 Oct 19.