Summary of the workshop
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Fifth Strategic Meeting of The Global Cassava Partnership for the 21st Century, St Pierre de La Reunion, France, June 10 – 13, 2014
Surveillance and Control of Cassava Diseases in Africa
Organizers:
Dr. Claude M. Fauquet Director GCP21 CIAT, Apdo. Aereo 6713 Cali, Colombia Cell: +1-314-477-3973 Email: c.fauquet@cgiar.org Web: www.gcp21.org |
Dr. Valérie Verdier IRD-UMR RPB Colorado State University Fort Collins, CO 80523-1177 Cell: +1-970-491-6604 Email: valerie.verdier@ird.fr |
Dr. Bernard Reynaud CIRAD-UMR PVBMT Pôle de Protection des Plantes 97410 Saint-Pierre Ile de La Réunion Tél: +33-2-62-49-92-34 Email: bernard.reynaud@cirad.fr |
Organizing Committee:
Workshop Summary:
Under the initiative of the Global Cassava Partnership for the 21st Century (GCP21), a selected number of donor organizations and world specialists of cassava viruses and their vectors, belonging to national and international research organizations, met In Bellagio, Italy, May 5-10, 2013, and decided to create a global alliance to fight these viruses and undertake a series of measures to prevent their spread in Africa and in the rest of the world. The global alliance is calling on all world scientists and developers to contribute to this immense task.
A group of CIRAD (Centre de Coopération International en
Recherche Agronomique pour le Développement) and IRD
(Institut de Recherche pour le Développement) experts in
viruses, whitefly vectors and bacteria infecting cassava,
have met in Montpellier, France, June 20th, 2013, to form a
team to respond to the international call of the global
alliance and to contribute to a better control of cassava
viral and bacterial diseases on the African continent.
In Africa, diseases represent the main constraint of
cassava. Cassava is affected by two virus diseases
respectively called cassava mosaic disease (CMD) and cassava
brown streak disease (CBSD) and also by a bacterial disease
called cassava bacterial blight (CBB). CMD is present all
over the African continent and is estimated by specialists
to cause a minimum of 50 million tons of losses per year.
CBSD, for now present in East Africa, is inducing necrosis
in the roots of the plants rendering them unfit for
consumption and processing, and farmers loose the whole
harvest and cannot plant the crop from infected stem
cuttings. CBB is a major bacterial disease, endemic in
tropical and subtropical areas. This foliar and vascular
disease severely affects cassava production worldwide.
Losses between 12-100% affect both yield and planting
material. Over the last years a significant recurrence of
the disease was reported in different regions in Africa and
Asia.
The widespread of the cassava viruses in Africa
is promoted by the development of a new super-abundant
population of whitefly vectors. It is not known why these
whiteflies adapted to cassava to become super-abundant and
by the same token to become a key element in the spread of
these diseases in Africa and potentially in the rest of the
world. These populations, which are present in almost all
the Eastern African countries are now present in east
Democratic Republic of Congo, Zambia, north Angola and
Cameroon, and they could therefore propagate CBSD in central
and west Africa, with potential huge impact on cassava
production.
GCP21 convened an important meeting in
Bellagio in May 5-10, 2013, to review the virology situation
of cassava in Africa and answer questions relative to the
spread of these diseases on the African continent and in the
rest of the world. The international group of experts
decided to create a global alliance to “declare a war on
cassava viruses in Africa” and undertake a series of action
to slow down their spread and the alliance also called on
more institutions to be involved in the war against cassava
viruses. The cassava world experts who convened in Bellagio
also expressed the need to collect all biological and
molecular information of these pest and pathogens to be
gathered in a centralized and unique site in the world.
CIRAD and IRD have several scientists who are world
experts of cassava viruses, of the whitefly virus vector and
plant bacteriologist experts on cassava bacterial blight
disease. The French team members are confident to rally
CIRAD and IRD bio-informaticians to the team. The CIRAD team
is hosted by the Plant Protection Platform (3P) laboratory
of St Pierre in La Reunion, an island located 700 km off the
coast of Madagascar, and this lab has the capacity, the
equipment and the expertise to safely host a variety of
pathogens infecting cassava. The CIRAD team in La Reunion
has expertise in tissue culture and virus/bacterial
diagnostic capacity and because of the physical isolation of
La Reunion, could develop an international virus-free
transit site to permit safe international exchange of
cassava material in the near future. The IRD team based in
Montpellier has studied the etiology and ecology of CBB for
several decades in Africa and South America. Altogether they
have developed expertise on the comparative genomics of CBB,
the identification of bacterial virulence factors and
resistance genes in the host plant and the development of
molecular typing/tracing tools.
Finally the French
team is deeply involved into capacity building of young
scientists in Africa and Latin America and expressed their
commitment to train a larger number of African scientists to
study these three important cassava pest and diseases.
CIRAD and IRD recently released their strong commitment
to participate to the CGIAR Research Programs (CRPs) Root
Tuber and Bananas. GCP21 is an independent non-for-profit
organization also collaborating to several CRPs and to a
number of R&D organizations in the world.
Proposal:
The proposal is to convene a workshop at the Plant
Protection Platform (3P) laboratory of St Pierre in La
Reunion, to present to the international cassava community
their expertise and their capacity, in order to make it
available to the cassava international community to fight
cassava diseases on the African continent and beyond. The 3P
laboratory is a very large facility hosting more than 40
scientists and technicians with updated equipment and
storage facilities to study fungi, bacteria, viruses and
insects, and has the capacity to perform genomic studies of
all these pests and pathogens. The scientific track record
of these scientists is remarkable and will ensure a top
quality work and training, although the activity was so far
not based on cassava with the exception of the virology
work, there is no objection from the scientists and
technicians to work on cassava pest and pathogens if there
is a request from the African and international community.
The investment made by the French research
organizations and the European Community in La Reunion, in
the 3P laboratory of St Pierre in La Reunion, offers the
possibility to host any cassava pathogen or pest, for
in-depth comparative studies and for reference collection
purposes. In addition the 3P lab has the capacity to
virus-clean any cassava material, and to guaranty through
advanced diagnostic technologies that this material is free
of these pathogens for international exchanges. The 3P lab
has access to screen houses and experimental fields for long
term cultivation of this material and even for crossing
purposes if needed. The physical isolation of La Reunion is
offering a suitable location for African exchanges of
material as well as global exchanges of material.
Through their long term investment, the scientists at the 3P
laboratory have trained, in collaboration with the local
university and African universities, a large number of
students from several African countries and are dedicated to
extend their expertise and commitment to more African
countries.
The isolation of the 3P laboratory allows
importation of pathogens from all the African countries and
even from the rest of the world for comparative studies.
This 3P lab could become a global reference for these very
important pests and pathogens. The 3P laboratory could host
students and scientists from all African countries for
training in advance technologies and to develop and transfer
relevant and uniformed diagnostic tests. In collaboration
with African partners and other advance labs CIRAD and IRD
could offer to develop a unique global center for training
about cassava pathogens for the global benefit of the
community. Finally the isolation of the 3P laboratory
permits to consider developing an international transit site
for virus-clean cassava material.
The main objective
of the workshop is to let the international cassava
community know about the scientific expertise and technical
capacity that the French team (CIRAD and IRD), and the 3P
laboratory, can offer in the field of cassava pests and
diseases in order to create a Pan-African Surveillance
Network on Cassava Diseases : PanAf-SNCD and an
international transit site for virus-free cassava.
Subsequent objectives of this workshop will be to discuss the following topics:
The short-term outcomes/impacts expected are:
The long-term outcomes/impacts expected are:
Communication Plan
We are planning on some level of communication being done before, during and after the Cassava-Base Feed System meeting. Therefore a communication team (ComTeam) will be assembled to report about the meeting and to interact with journalists.
The team is composed of:
Dates: June 10-13, 2014
Location: 3P lab, St Pierre, La Reunion
Format:
# |
Name |
First Name |
|
Institution |
Group |
|
|||||
CIRAD |
|||||
1 |
Lett |
Jean-Michel |
jean-michel.lett@cirad.fr |
CIRAD |
virologist |
2 |
Reynaud |
Bernard |
bernard.reynaud@cirad.fr |
CIRAD |
entomologist |
3 |
Delatte |
Helen |
helene.delatte@cirad.fr |
CIRAD |
bacteriologist |
4 |
Roux-Cuvelier |
Michel |
michel.roux-cuvelier@cirad.fr |
CIRAD |
tissue culture |
5 |
Dintinger |
Jacques |
jacques.dintinger@cirad.fr |
CIRAD |
breeder |
6 |
Vernier |
Philippe |
philippe.vernier@cirad.fr |
CIRAD |
network |
7 |
Domaingue |
Robert |
robert.domaingue@cirad.fr |
CIRAD |
network |
8 |
Verniere |
Christian |
christian.verniere@cirad.fr |
CIRAD |
bacterio |
9 |
Pruvost |
Olivier |
olivier.pruvost@cirad.fr |
CIRAD |
bacterio |
|
|||||
IRD |
|||||
10 |
Verdier |
Valerie |
Valerie.Verdier@ird.fr |
IRD |
bacteriologist |
11 |
Szurek |
Boris |
Boris.szurek@ird.fr |
IRD |
microbiologist |
|
|||||
CGIAR and CRP key people |
|||||
12 |
Kulakow |
Peter |
P.Kulakow@cgiar.org |
IITA |
breeder |
13 |
Kumar |
Lava |
L.Kumar@cgiar.org |
IITA |
virologist |
14 |
Cuellar |
Willem |
w.cuellar@cgiar.org |
CIAT |
virologist |
15 |
Legg |
James |
j.legg@cgiar.org |
IITA |
virologist |
|
|||||
NARS francophones et anglophones |
|||||
16 |
Baguma |
Yona |
baguma1234@yahoo.com |
NaCCRI |
molecular bio |
17 |
Rakotoarisoa |
Jacqueline |
ds@fofifa.mg and j.rakotoarisoa@cirad.mg |
Madagascar-FOFIFA-DS |
networking |
18 |
Offei |
Kouame |
soffei@wacci.edu.gh |
Ghana |
virologist |
19 |
Tiendrébéogo |
Fidèle |
fidelet@gmail.com |
Burkina Faso |
virologist |
20 |
Zinga |
Innocent |
zinga.innocent37@googlemail.com |
RCA |
virologist |
21 |
Diallo |
Hortense |
attakyhortense@yahoo.com |
Cote d'Ivoire |
virologist |
22 |
Kpemoua |
Kossi |
kossikpemoua@yahoo.fr |
Togo |
bacteriologist |
23 |
Mabanza |
Joseph |
Jmabanza2002@yahoo.fr |
Rep. of Congo |
Breeder - sanitation |
24 |
Koita |
Ousmane |
oakoita@yahoo.com |
Mali |
Epidemiologist UEMOA/bacterio |
25 |
Quain |
Marian |
marianquain@hotmail.com |
CSRI, Ghana |
Biotech |
26 |
Kone |
Daouda |
daoudakone2013@gmail.com |
UFHB |
Ivory Coast |
27 |
Onyeka |
Joseph |
jonyeka@yahoo.com |
NRCRI, NIGERIA |
pathologist |
|
|||||
ASARECA + CORAF + Beca |
|||||
28 |
Okogbenin |
Emmanuel |
eokogbenin@yahoo.com |
AATF |
Kenya |
29 |
Rwomushana |
Ivan |
i.rwomushana@asareca.org> |
Asareca |
networking |
30 |
Sangare |
Abdourahamane |
abou.sangare@coraf.org |
Coraf |
Networking |
|
|||||
European research institutions NRI, DSMZ… |
|||||
31 |
Gowda |
Maruthi |
M.N.Maruthi@greenwich.ac.uk |
NRI |
virologist |
32 |
Winter |
Stephan |
stephan.winter@jki.bund.de |
DSMZ |
virologist |
|
|||||
Donors: |
|||||
33 |
Larry |
Beach |
biot1larry@gmail.com |
Rep BMGF |
donor |
34 |
Sankung |
Sagnia |
Sankung.Sagnia@fao.org |
FAO |
donor |
|
|||||
GCP21 |
|||||
35 |
Fauquet |
Claude |
C.fauquet@cgiar.org |
GCP21 |
virologist |
|
|||||
Facilitator/Communications Specialist |
|||||
36 |
Josserond |
David |
david.josserond@cirad.fr |
CIRAD-3P |
Comm |
37 |
Dennemont |
Cynthia |
cynthia.dumont@cirad.fr |
CIRAD-3P |
Gestion admin |
38 |
Makila |
Ethel |
e.makila@cgiar.org |
Beca |
Com |
|
Tuesday June 10 |
Wednesday june 11 |
Thursday june 12 |
Day 1 |
Day 2 |
Day 3 |
|
||
Official opening session |
Visit field stations and genetic resources |
Group discussions |
Welcoming |
|
|
Bernard Reynaud |
Chairs Legg / Winter |
|
Welcome and 3P presentation |
|
|
Claude Fauquet |
|
Chairs Diallo / Kumar |
|
||
Stephan Winter |
|
Chairs Kulakow / Roux |
|
||
Rwomushana Ivan |
|
Chairs Poussier / Djikeng |
|
||
Sangare Abourahmane |
|
|
Expertise and needs at CORAF |
|
|
|
||
Coffee |
Coffee |
Coffee |
|
||
Emmanuel Okogbenin | ||
|
|
|
James Legg |
|
|
|
|
|
James Legg |
|
|
|
|
|
Jean Michel Lett |
|
Report Group discussions |
|
Group 1: Legg |
|
Peter Sseruwagi |
|
Group 2: Kumar |
The whitefly project in East Africa |
|
Group 3: Kulakow |
Helen Delatte |
|
Group 4: Poussier |
|
|
|
|
||
Lunch |
Lunch |
Lunch |
|
||
Visit 3P Laboratories |
Visit 3P Laboratories |
Group discussions |
Chairs Diallo / Winter |
||
|
|
Establishing a diagnostic network |
|
|
Chairs Legg / Kumar |
|
|
Establishing a pan-african surveillance network |
|
|
Chairs Kulakow / Roux-Cuvelier |
Maruthi Gowda |
Hortense Diallo |
Establishing international quarantine measures / transit site La Reunion |
Network in West-Central Africa |
Chairs Poussier / Djikeng |
|
Valerie Verdier |
Fidéle Tiendrébéogo |
|
|
||
Ralf Koebnik |
Isabelle Robène |
|
|
||
Willem Cuellar |
Michel Grisoni |
|
Germplasm broad range virus indexing through NGS: the case study of SafePGR |
|
|
|
||
Coffee |
Coffee |
Coffee |
|
||
Peter Kulakow |
Henri Brouchoud |
Report Group Discussions |
Marie-France Duval |
Stéphane Poussier |
|
Michel Roux-Cuvelier |
Appolinaire Djikeng |
|
Adjourn |
||
Lava Kumar |
Drinks |
Drinks |
Surveillance and example of BBTV |
|
|
|
||
Dinner |
Dinner |
Dinner |
|