Genetics of bruchid (Callosobruchus maculatus Fab.) resistance in cowpea (Vigna unguiculata (L.) Walp.)

Amusa, Oluwafemi Daniel; Ogunkanmi, L.A.; Adetumbi, J. A.; Akinyosoye, Solomon Tayo; Ogundipe, O. T.

doi:10.1016/j.jspr.2017.11.004

Cited by 25 publications

(37 citation statements)

References 6 publications

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“…Zero DSI and 44 days of MDP were recorded from genotypes IT84S-2246, IT84S-2246× 2419, 2419× IT84S-2246, TVu-2027, TVu-2027× 2419and TVu-2027 (Table 2), suggesting that these genotypes were resistant. These results are in line with previous finding which suggested that resistant cowpea genotypes often show reduced insects emergence and delayed insect development (Amusa et al, 2017;Miesho et al, 2018). On the contrary, the highest number of insects was recorded from WC69 (8.46), suggesting susceptibility.…”

Section: Phenotypic Variabilitysupporting

confidence: 93%

“…On the contrary, the highest number of insects was recorded from WC69 (8.46), suggesting susceptibility. Similar results were obtained by Amusa et al (2017) and Miesho et al (2018).…”

Section: Phenotypic Variabilitysupporting

confidence: 90%

“…To evaluate for resistance to bruchids, 10 F2 generation seeds of each of the 36 F1 and 36 reciprocal crosses and the nine parents were weighed and separately put in a Petri-dish of 90 × 15 mm. Thirty seeds were randomly selected from each of the bulked F2s and parental seeds and oven dried at 40°C for 24 h to destroy any insects or eggs that could have been present and to standardize moisture levels of the seeds (Amusa et al, 2014). The experiment was laid in randomized complete block design with three replications.…”

Section: Screening Of Cowpea Seeds For Resistance To C Maculatusmentioning

confidence: 99%

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Inheritance and combining ability of cowpea resistance to bruchid (Callosobruchus maculatus F.)

Miesho¹,

Msiska²,

Gebremedhn³

et al. 2018

J. Plant Breed. Crop Sci.

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The bruchid, Callosobruchus maculatus (F.) is one of the most destructive pests and causes substantial losses to cowpea during storage in tropical and subtropical regions. The development of successful breeding strategy requires knowledge on gene action and trait inheritance in local and improved sources. In this study, the mode of inheritance, the types of gene action and maternal effects of cowpea resistance to bruchid was investigated. Nine parental lines and their 72 F 2 segregating populations, created in a full diallel Griffing's method 1 approach, were evaluated for resistance to bruchid attack in a randomized complete block design (RCBD) with three replications. Data were recorded on number of eggs laid by the bruchid (NE), adult bruchid emergence (NEI), median development period (MDP) and Dobie Susceptibility index (DSI) was computed. Genotype had highly significant effects on NE, NEI and MDP and DSI. General combining ability (GCA) effects of parents, specific combining ability (SCA) effects of crosses, and maternal and reciprocal effects were highly significant for all the traits. The ratios of GCA to SCA for all the traits were greater than 50% suggesting the preponderance of additive over non-additive gene action in the expression of the traits. Narrow sense heritability estimates were 64.12, 77.69 and 80.99% for NE, NEI and MDP, respectively. Parents 2419, TVu-2027 and IT84s-2246 were identified as promising general combiners for resistance to bruchid and the seven best selected crosses based on their SCA and DSI values were, IT84s-2246 × 2419, 2419 × MU9, TVu-2027 × SECOW2W and 2419 × IT90K-76, 2419 × WC69, 2419 × SECOW5T and 2419 × SECOW2W. The selected parents and/or crosses could be valuable genetic materials for breeding cowpea resistance to bruchid in Uganda or similar environments.

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Section: Phenotypic Variabilitysupporting

confidence: 93%

“…On the contrary, the highest number of insects was recorded from WC69 (8.46), suggesting susceptibility. Similar results were obtained by Amusa et al (2017) and Miesho et al (2018).…”

Section: Phenotypic Variabilitysupporting

confidence: 90%

Section: Screening Of Cowpea Seeds For Resistance To C Maculatusmentioning

confidence: 99%

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Inheritance and combining ability of cowpea resistance to bruchid (Callosobruchus maculatus F.)

Miesho¹,

Msiska²,

Gebremedhn³

et al. 2018

J. Plant Breed. Crop Sci.

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“…Collection of samples and bioassay C. maculatus resistant (TVu11953) and susceptible (Ife Brown) cowpeas were collected for the study from the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria and the Institute of Agricultural Research and Training (IAR&T), Moor Plantation, Ibadan, Nigeria respectively. They were screened for C. maculatus resistance to ascertain their tolerance level according to the method of Amusa et al (2014). Seventy-two (72) F 2 segregating populations from the reciprocal crosses between TVu11953 and Ife Brown were developed for the study.…”

Section: Methodsmentioning

confidence: 99%

“…The use of resistant cultivars is still the best method to manage C. maculatus infestation (Tripathy, 2016). Although only three cowpea accessions (TVu2027, TVu11952, TVu11953) have been identified to have moderate resistance to C. maculates, there has been a recent report showing that two of the accessions (TVu2027, TVu11952) have shown reduced resistance to C. maculatus damage (Amusa et al, 2014). Therefore, the need to identify and breed alternative sources of C. maculatus resistance to bruchid damage cannot be overestimated.…”

Section: Introductionmentioning

confidence: 99%

Morpho-genetic variability in F2 progeny cowpea genotypes tolerant to Bruchid (Callosobruchus maculatus)

et al. 2019

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Callosobruchus maculatus Fab. is a major threat to cowpea production reducing the quality, quantity and market value of cowpea grains. A cheap and easy identification method would be a valuable tool in identifying and breeding resistant genotypes in the vast cowpea germplasm. Hence, the purpose of the study was to identify and evaluate the genetics of cowpea traits between resistant and susceptible plant genotypes to C. maculatus. Contrasting qualitative and quantitative traits in C. maculatus resistant and susceptible parents were evaluated in 72 F 2 progeny cowpea plants. Heritability, segregation and association of investigated traits with the C. maculatus resistant performance of the F 2 cowpea genotypes were evaluated to determine closely related traits with C. maculatus resistance. Results from the study showed high heritability for all cowpea quantitative traits except leaf petiole length. Both Mendelian inheritance and non-Mendelian inheritance were observed among qualitative traits. However, association evaluation between cowpea traits and mean bruchid development period, percentage adult emergence and oviposition preference were weak (r < 0.5) and not significant (p < 0.05). This indicates that C. maculatus resistance in cowpea may be attributed to factors other than morphological variations.

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Seed storage proteins and seed coat compounds additively influence Callosobruchus maculatus Fab. tolerance in selected cowpea (Vigna unguiculata L. Walp.) varieties

Amusa,

Emereuwa,

Akinyosoye

et al. 2023

Legume Science

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The cowpea weevil, Callosobruchus maculatus, is a major threat to stable cowpea production, especially in storage, and has been reported to facilitate postharvest losses in cowpea grains. Host resistance has been suggested as the best control method but with conflicting knowledge on the source of resistance. Hence, the study seeks to evaluate seed storage proteins (SSPs) and seed coat compounds (SCCs) associated with tolerance to C. maculatus. SSPs and SCCs were assayed and associated with C. maculatus tolerance in 19 cowpea varieties with varied tolerance levels using a stepwise multiple regression analysis. Top C. maculatus tolerants were TVu‐2027, TVu‐11952, TVu‐11953, and TVu‐145. The protein fraction with a mass of 51 kDa was a significant predictor associated with percentage adult insect emergence (PAE) and host suitability index (H.S.I.), and 57 and 71 kDa were associated with mean development period (MDP) whereas 59 and 131 kDa were associated with seed damage tolerance (TolSD). Several SCCs identified were associated with the C. maculatus tolerant measures used in the study. However, Thiazole, tetrahydro‐ and Undecane were consistently identified with C. maculatus tolerance. Higher phenotypic variability was accounted for by SCC than SSP fractions associated with C. maculatus tolerance in the study indicating that SCCs contributed more to the C. maculatus tolerance than the SSPs identified. These compounds can be incorporated into breeding for C. maculatus tolerant in cowpea and biopesticide formulations whereas cowpea varieties with the high or significant amount of these compounds can also be recommended to the farmers or to the cowpea producers.

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Genetics of bruchid (Callosobruchus maculatus Fab.) resistance in cowpea (Vigna unguiculata (L.) Walp.)

Cited by 25 publications

References 6 publications

Inheritance and combining ability of cowpea resistance to bruchid (Callosobruchus maculatus F.)

Inheritance and combining ability of cowpea resistance to bruchid (Callosobruchus maculatus F.)

Morpho-genetic variability in F2 progeny cowpea genotypes tolerant to Bruchid (Callosobruchus maculatus)

Seed storage proteins and seed coat compounds additively influence Callosobruchus maculatus Fab. tolerance in selected cowpea (Vigna unguiculata L. Walp.) varieties

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