Resistance, hybrid vigor, genetic diversity, and toxicity of chemical constituents of tomatoes to Tuta absoluta (Lepidoptera: Gelechiidae)

Silva, Thyago Lima da; Terenciano, Rafaela Montagna; Cruz, Carlos Gustavo da; Fernandes, Flávio Lemes; Fernandes, Maria Elisa de Sena

doi:10.1007/s11829-022-09926-9

Cited by 3 publications

(4 citation statements)

References 72 publications

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“…Tomato genotypes that differed greatly in their effects on larval developmental and survival did not affect the sex ratio of the pupae. Similar results were reported by da Silva et al 48 However, and in contrast to the 1:1sex ratio that is usually found in T. absoluta and other Lepidoptera, 53 Ecole et al 5 reported that a lower proportion of T. absoluta females eclosed on resistant L. hirsutum f. typicum (male‐biased sex ratio) and attributed their results to a higher female mortality at the larval stage.…”

Section: Discussionsupporting

confidence: 76%

“…Studying fitness components of T. absoluta among these genotypes may provide insight into the underlying resistance mechanisms 19 . For example, the longest developmental time for T. absoluta on LA 1777 could be attributed to an antibiosis mechanism because it is related to the poor performance or lethal effects on different stages of the target insect 20,35,47–49 . Plant nutrient composition is also known to influence pest performance of resistant plants.…”

Section: Discussionmentioning

confidence: 99%

“…19 For example, the longest developmental time for T. absoluta on LA 1777 could be attributed to an antibiosis mechanism because it is related to the poor performance or lethal effects on different stages of the target insect. 20,35,[47][48][49] Plant nutrient composition is also known to influence pest performance of resistant plants. For example, changes in C:N level in plant foliage influence larval development.…”

Section: Discussionmentioning

confidence: 99%

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Life‐table analyses for the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae): effects of plant genotype

Guruswamy

Murugan

Coll

2023

Pest Management Science

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BACKGROUND: Host plant resistance plays an important role in integrated pest management programs. Crop resistance assessments commonly focus on only a single dependent variable, such as larval survival/plant damage, which limits the ability to appreciate the impact of host plants on pest populations in the full sense. Therefore, we performed life-table analyses for tomato leaf miner Tuta absoluta, on 19 Solanum lycopersicum genotypes and a wild Solanum habrochaites accession. These analyses assess the ability of the pest to attain a high population density on different tomato genotypes. Based on the resulting ranking of tomato resistance at the vegetative stage (45-day-old plants), we tested the resistance of six selected genotypes at the reproductive stage (4-month-old plants). RESULTS: T. absoluta performance was significantly inferior on vegetative-stage S. habrochaites plants (LA 1777); time taken for the first instars to mine the leaves (5 ± 0.14 days), development time of early-and late-stage larvae (8.8 ± 0.2 and 4.2 ± 0.2 days, respectively), pupal period (11.2 ± 0.58 days), and total developmental time (29.4 ± 0.83 days) were significantly longer, fecundity was significantly lower (18.66 ± 7.24 days), and the highest total mortality (63.33%) also recorded compared with other genotypes, resulting in the lowest net reproductive rate (R 0 ) (11.20 ± 2.51). For the six selected genotypes, the ranking of plant resistance did not change between plants at the vegetative and reproductive stages.CONCLUSION: This study suggested that of 20 screened tomato genotypes, LA 1777 and EC-620343 are the least suitable hosts for T. absoluta to establish fast-growing populations, and thus can be employed in integrated T. absoluta management.

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Section: Discussionsupporting

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Life‐table analyses for the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae): effects of plant genotype

Guruswamy

Murugan

Coll

2023

Pest Management Science

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“…Hierarchical clustering methods are widely used in studies on the genetic dissimilarity of populations [ 66 ]. Despite the important information provided by these methods in breeding programs, they can have some limitations, such as difficulty in analyzing databases with a high sample number, inconsistencies in separating accessions located in more distant branches of the dendrogram, and the presence of outliers can generate clustering distortions, thus compromising the classification [ 67 , 68 , 69 ].…”

Section: Discussionmentioning

confidence: 99%

Introgression of the Self-Pruning Gene into Dwarf Tomatoes to Obtain Salad-Type Determinate Growth Lines

Pereira,

Maciel,

Siquieroli

et al. 2024

Plants

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The use of dwarf plants in tomato breeding has provided several advantages. However, there are no identified dwarf plants (dd) containing the self-pruning habit (spsp). The aim of this work was to obtain future generations, characterize the germplasm, and select potential dwarf plants with a determinate growth habit to obtain Salad-type lines. The work was started by carrying out hybridization, followed by the first, second, and third backcrosses. Once F2BC3 seeds became available, the introgression of the self-pruning gene (spsp) into dwarf plants (dd) began. Three strains of normal architecture and a determinate growth habit were hybridized with two strains of dwarf size and an indeterminate growth habit, thus yielding four hybrids. Additionally, donor genotype UFU MC TOM1, the commercial cultivar Santa Clara, and the wild accession Solanum pennellii were used in the experiment. Agronomic traits, fruit quality, metabolomics, and acylsugars content were evaluated, and dwarf plants with a determinate growth habit were selected. Hybrid 3 exhibited the highest yields. Visual differences between determinate and indeterminate dwarf plant seedlings were observed. It is suggested to carry out five self-pollinations of the best dwarf plant determined and subsequent hybridization with homozygous lines of normal plant architecture and determinate growth habit to obtain hybrids.

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Life history parameters of tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae) on various host plants

Naseri,

Rahimi Ashjerdi,

Hamzavi

2023

J. Entomol. Soc. Iran

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Resistance, hybrid vigor, genetic diversity, and toxicity of chemical constituents of tomatoes to Tuta absoluta (Lepidoptera: Gelechiidae)

Cited by 3 publications

References 72 publications

Life‐table analyses for the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae): effects of plant genotype

Life‐table analyses for the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae): effects of plant genotype

Introgression of the Self-Pruning Gene into Dwarf Tomatoes to Obtain Salad-Type Determinate Growth Lines

Life history parameters of tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae) on various host plants

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