Screening for resistance against the banana aphid Pentalonia nigronervosa (Hemiptera: Aphididae) and Banana bunchy top virus (genus, Babuvirus) in Musa genotypes in Central Africa.

Banana and plantain (Musa spp) represent an important food and cash crop worldwide. Their cultivation faces many pest and disease constraints amongst which banana bunchy top disease (BBTD). Banana bunchy top virus (BBTV, genus Babuvirus), the causal agent of BBTD is transmitted persistently by the banana aphid Pentalonia nigronervosa Coquerel (Hemiptera: Aphididae). Information regarding aphid’s preference to Musa genotypes is yet scanty whereas a high level of resistance to BBTD is not yet found. This study was undertaken to assess the susceptibility of different Musa genotypes from different genomic composition to banana aphid and BBTV. Experimental infestation with banana aphid was done on 38 Musa genotypes in screenhouse while 44 Musa genotypes were planted in BBTD affected area and assessed for 36 months under natural infestation and infection by the aphid vector. Results showed significant differences in the performance of banana aphid between Musa genotypes. In the screenhouse, the diploid Calcutta 4 (AA) and Ney Poovan (AB) were the least suitable to aphid growth while AAB triploids (Waema, Ebang) were the most suitable to aphid growth. In natural conditions, AAB genotypes (Batard, Ebang, Essong, Elat) and AAAB tetraploid hybrids (CRBP 39, CRBP 969), were highly suitable to banana aphid and susceptible to BBTD. Meantime, AA diploids (Tapo, Pisang Tongat, Figue Sucree), the triploids Yangambi Km 5 and FHIA 25 were less suitable banana aphid and highly susceptible to BBTD with 100.0 % infection observed on Tapo. The tetraploid Balonkawe (ABBB), the AAB triloid PITA 21, the wild diploids Calcutta 4 (AA) and Balbisiana Los Banos (BB) escaped to BBTV infection at 36 MAP. Knowledge of genotype response to banana aphid and BBTD is useful in the selection of promising lines towards breeding varieties with resistance to BBTD.

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Additional Info

Field Value
Creator Ngatat, Sergine
Creator Affiliation International Institute of Tropical Agriculture (IITA)
Creator ID Type ORCID
Creator ID 0000-0002-5786-3865
Subject Vocab (AGROVOC/GACS/CAB) Disease incidence,Banana,Bunchy top disease,Hemiptera,Aphids,Genotype
Subject(s) AUDPC,AUIPC,Susceptibility,Aphidae
Publisher International Institute of Tropical Agriculture (IITA)
Contributor Person Rachid Hanna; Pullikanti Lava Kumar, Komi Fiaboe, Fotso K. Apollin, Richard T.Ghogomu
Contributor Role Supervisor
Contributor Project Lead Organisation Center International Institute of Tropical Agriculture (IITA)
Contributor Project Lead Center International Institute of Tropical Agriculture (IITA)
Contributor CRP CGIAR Research Program on Roots, Tubers and Banana(RTB)
Contributor Partner Not applicable
Contributor Donor CGIAR program Roots, Tubers and Banana
Contributor Project Banana bunchy top disease control-RTB
Project ID
Contributor Affiliation International Institute of Tropical Agriculture (IITA)
Open-Access status Open Access
Production Date 2018-10-25
Embargo End Date 2021-12-08
Content Type Dataset
File Format csv
Identifier Type DOI
Identifier https://doi.org/10.25502/8107-0255/d
Identifier Citation
Source Banana bunchy top disease control-RTB
Language English
Relation Not applicable
Agroecological Zone Humid warm tropics
Coverage Region Central Africa
Coverage country Cameroon
Coverage Admin Unit Not applicable
Coverage Y (Latitude) 2.32531
Coverage X (Longitude) 11.43634
Coverage Start Date 2013-11-25
Coverage End Date 2018-10-25
Contact Ngatat, Sergine; International Institute of Tropical Agriculture (IITA)
Contact Email s.ngatat@cgiar.org
Restriction CC-Zero
Email Permission None
Rights CC-Zero