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CABARÉ : CARIBBEAN NETWORK FOR THE PREVENTION AND SUSTAINABLE CONTROL OF EMERGING DISEASES OF BANANAS

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Pierre-Yves Teycheney

1

, Luis Perez Vicente

2

, Elisa Javer Higginson

2

, Rafael Gomez Kosky

3

, Maryluz Folgueras Montiel

4

, Lilian Morales

Romero

4

, Reina Teresa Martinez

5

, Domingo Renfigo

5

Thierry Lescot

6

, Jean Carlier

7

& Catherine Abadie

8

1 CIRAD UMR AGAP - Station de Neufchâteau - 97 130 Capesterre-Belle-Eau – Guadeloupe, France – teycheney@cirad.fr; 2 INISAV - Calle 110 #514eL/5a.La Havane CP 11600 – Cuba;

3 IBP - Universidad Central “Marta Abreu” de Las Villas, Carretera a Camajuaní km 5.5, Santa Clara, Villa Clara, CP 54 830, Cuba; 4 INIVIT - Finca Tres Carolinas. Apartado 6, Santo Domingo,

CP: 53000, Cuba; 5 IDIAF - Calle Rafael A. Sánchez #89, Santo Domingo, Dominican Republic; 6 CIRAD UR26 - TA B-26 / PS4 - Boulevard de la Lironde - 34398 Montpellier Cedex 5 – France;

7 CIRAD UMR BGPI – TA A-54K – Campus International de Baillarguet – 34398 Montpellier cedex 5 – France; 8 CIRAD UMR BGPI - Station de Neufchâteau, 97 130 Capesterre-Belle-Eau –

Guadeloupe, France – catherine.abadie@cirad.fr

CABARÉ : CARIBBEAN NETWORK FOR THE PREVENTION AND

SUSTAINABLE CONTROL OF EMERGING DISEASES OF BANANAS

Introduction

Unravel the reasons why resistance to BSD has eroded over the

years in hybrids FHIA18 and FHIA21 in Cuba and the Dominican Republic

Assess the risk of spreading BSV through large scale distribution of

interspecific hybrids harbouring infectious eBSVs

Develop and implement technical guidelines for the sustainable use

of BLSD resistance traits in hybrid banana varieties and for the safe distribution of interspecific banana hybrids without a risk of BSV outbreaks

Provide trainings in diagnostic of BLSD and viral diseases of banana

and promote capacity building among project partners

Objectives of the project

Black Leaf Streak Disease (BLSD) is the main foliar disease of banana. It is caused by the fungus Mycosphaerella fijiensis and results in decreased yields and early maturation of fruits. The impact of the disease is particularly high on dessert banana grown for export, which relies on highly susceptible clones of Cavendish type. Control of M. fijiensis is currently performed by fungicide treatments, which are costly and have a negative impact on human health and the environment.

More sustainable control strategies rely on the breeding of disease resistant varieties. Several BLSD-resistant interspecific hybrids have been developed by breeding programs worldwide and distributed to various extents, especially in Cuba and the Dominican Republic. Such hybrids result from crosses between Musa acuminata (A) and M. balbisiana (B). However, M. balbisiana genomes host infectious endogenous Banana streak virus sequences (eBSVs) whose activation by abiotic stresses, such as temperature differences, or by tissue culture results in spontaneous infections in interspecific hybrids of AAB and AAAB genotypes. Moreover, a decrease in the levels of resistance to BLSD has been monitored over the years in interspecific hybrids FHIA18 and FHIA21 in Cuba and the Dominican Republic.

Project activities and partnership

5 operational partners: CIRAD Guadeloupe (coordinator) INISAV (Cuba) IBP (Cuba) INIVIT (Cuba)

IDIAF (Dominican Republic) Task 1 : Analysis of the spread of Black

Sigatoka and Banana streak viruses CIRAD, INISAV, IDIAF, IBP, INIVIT

Task 2 : Analysis of phytosanitary risks associated with banana cropping systems

using hybrid varieties CIRAD, INISAV, IDIAF

Task 3 : Development and assessment of methods for the sustainable control of

BLSD and BSV

CIRAD, INISAV, IDIAF, IBP, INIVIT

Task 4 : Trainings, technological transfers CIRAD, INISAV, IDIAF

Task 5 Coordination and capacity building CIRAD, INISAV, IDIAF, IBP, INIVIT

10 beneficiary partners:

Martinique, Dominica, French Guyana, Grenada, Haïti, Jamaica, Porto-Rico, St Lucia, St Vincent & Grenadines, Trinidad & Tobago

Expected outcomes

Implementation of crop management strategies for the sustainable control of Black Sigatoka, using resistant hybrids with no risk of spreading

BSV and their transfer to growers

Strengthening of phytosanitary diagnostic know how in the Caribbean region through the organisation of regional trainings focused on

diseases of banana : ca 100 professionnals trained during the project

Strengthening of project partners in research domains related to the project topics

Capacity building of project partners through PhD projects : 3 PhD projects are being carried out in the frame of the project

Références

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