Next Generation Breeding for Abiotic Stress Resistance in Eggplant

Toppino, L.; Barchi, Lorenzo; Rotino, Giuseppe Leonardo

doi:10.1007/978-3-031-03964-5_4

Cited by 7 publications

(6 citation statements)

References 188 publications

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“…Recently, Toppino et al. (2022) comprehensively reviewed the state of the art of the eggplant research on introgression breeding for resistances trait, reporting that, while strides have been made in mapping traits related to fruit features and biotic stress resistance, the full potential of marker-assisted breeding for a wider range of abiotic and biotic stresses remains largely unexplored.…”

Section: Classical Mapping Approaches For Biotic and Abiotic Resistancementioning

confidence: 99%

“…Recently, Toppino et al (2022) comprehensively reviewed the state of the art of the eggplant research on introgression breeding for resistances trait, reporting that, while strides have been made in mapping traits related to fruit features and biotic stress resistance, the full potential of marker-assisted breeding for a wider range of abiotic and biotic stresses remains largely unexplored. The availability of introgression lines carrying stress-resistance genes from wild relatives like S. linneanum (Doganlar et al, 2002;Frary et al, 2003) and S. incanum presents a promising avenue for uncovering chromosomal regions responsible for conferring tolerance, but further research and population screening hold the potential to unveil these mechanisms and contribute to the development of more robust and resilient eggplant varieties.…”

Section: Eggplantmentioning

confidence: 99%

“…Over the past few decades, climate change has started impacting Solanaceae crops, and extreme emergent weather patterns are going to significantly affect yield and quality of tomato, pepper, and eggplant ( Lee et al., 2018 ; Bhandari et al., 2021 ; Suman, 2022 ; Toppino et al., 2022 ). While certain agricultural practices and cultivation techniques may provide temporary coping mechanisms, long-term strategies need to be implemented to address the challenges of climate change in vulnerable regions.…”

Section: Introductionmentioning

confidence: 99%

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Revitalizing agriculture: next-generation genotyping and -omics technologies enabling molecular prediction of resilient traits in the Solanaceae family

Martina,

De Rosa,

Magon

et al. 2024

Front. Plant Sci.

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This review highlights -omics research in Solanaceae family, with a particular focus on resilient traits. Extensive research has enriched our understanding of Solanaceae genomics and genetics, with historical varietal development mainly focusing on disease resistance and cultivar improvement but shifting the emphasis towards unveiling resilience mechanisms in genebank-preserved germplasm is nowadays crucial. Collecting such information, might help researchers and breeders developing new experimental design, providing an overview of the state of the art of the most advanced approaches for the identification of the genetic elements laying behind resilience. Building this starting point, we aim at providing a useful tool for tackling the global agricultural resilience goals in these crops.

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Section: Classical Mapping Approaches For Biotic and Abiotic Resistancementioning

confidence: 99%

Section: Eggplantmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Revitalizing agriculture: next-generation genotyping and -omics technologies enabling molecular prediction of resilient traits in the Solanaceae family

Martina,

De Rosa,

Magon

et al. 2024

Front. Plant Sci.

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“…Crop wild relatives (CWRs) of eggplant, comprising over 500 species of Solanum subgenus Leptostemonum (Knapp et al, 2019) across its primary, secondary and tertiary genepools, represent a valuable source of plant genetic resources adapted to diverse stressful environments (Dempewolf et al, 2017;Prohens et al, 2017). This extensive genetic diversity in eggplant wild relatives is fundamental in creating new genetic resources and developing improved varieties for a more sustainable agriculture in a climate change scenario (Gramazio et al, 2023;Plazas et al, 2020;Toppino et al, 2022). Belonging to the primary genepool (GP1), S. insanum L. is considered the wild progenitor of the common eggplant (S. melongena) (Ranil et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Validation and identification of new QTLs for plant and fruit developmental and composition traits in eggplant under low N conditions

Villanueva,

Vilanova,

Plazas

et al. 2024

Preprint

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Enhancing plant adaptation to low input conditions is a fundamental goal for implementing sustainable agriculture. In the present study, two eggplant (Solanum melongena) accessions (MEL1 and MEL5), two introgression lines (ILs) derived from eggplant wild relatives S. dasyphyllum (IL-M1-D1) and S. insanum (IL-M5-I9), and a heterozygous version of this last IL (ILHet-M5-I9), along with hybrids among them were evaluated under low N (LN) conditions. IL-M1-D1 carries an introgressed fragment of 4.9 Mb in homozygosis from S. dasyphyllum on chromosome 2, while IL-M5-I9 and ILHet-M5-I9 carry an introgression of 21.5 Mb on chromosome 9 in homozygosis and heterozygosis, respectively, from S. insanum. Multiple quantitative trait loci (QTLs) for several traits of interest were associated with both introgressions under LN conditions in a previous study with segregating advanced backcrosses. Here we evaluated the performance of these materials for 22 agronomic and developmental traits under low N fertilization (LN) conditions. Hybrids with the ILs enabled the study of genetic background effects on QTLs expression. The materials evaluated showed a significant phenotypic variation, particularly within hybrids segregating for the introgression from S. insanum in chromosome 9. Statistical analysis revealed no significant differences among hybrids carrying or not the introgression on chromosome 2 of S. dasyphyllum, and only slight differences were observed between the IL-M1-D1 and its recurrent parent S. melongena MEL1, suggesting a limited impact of this introgression on chromosome 2 on the phenotype variation. However, the differences observed between IL-M5-I9 and its recurrent parent S. melongena MEL5, together with the association between genotypic and phenotypic variation in hybrids segregating for this introgression, allowed the identification of 13 QTLs on chromosome 9. These results successfully validated the previously identified QTLs for flavonol content in leaves, nitrogen balanced index, fruit mean weight, and nitrogen content in leaves and, also revealed nine new QTLs associated with the introgressed genomic region in chromosome 9. This study emphasizes the influence of environmental conditions, genotypes, and genetic backgrounds on the phenotypic expression of eggplant QTLs introgressed from wild relatives and highlights the importance of QTL validation. These findings contribute valuable insights for developing new eggplant cultivars for a more sustainable agriculture, particularly with adaptation to LN conditions.

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“…Some studies have reported that DREB affects and responds to adverse salinity, drought, and low-temperature environments [24]. To understand the regulatory mechanisms and molecular networks activated under different drought stress levels is very important to identify genes mediating tolerance to these conditions in various plant species [25].…”

Section: Introductionmentioning

confidence: 99%

Analysis of physio-biochemical responses and expressional profiling of DREB transcription factors for drought tolerance in Aegilops tauschii Coss

Abbas

Hameed

Shahani

et al. 2023

Genet Resour Crop Evol

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Aegilops tauschii Coss. (2n = 2x = 14, DD) is a weed of wheat, competes for resources, performs better against different abiotic stresses, and is a rich genetic material source for wheat crop improvement programs. The effects of different drought stress levels on physiological and biochemical parameters and the expression pro le of the drought resistance gene DRB were examined through greenhouse experiments. The physiological parameters (plant height, dry weight biomass, plant height, and leaf arearelated parameters) uctuated under different drought stress levels. Photosynthetic parameters (maximum (Fo') and minimum (F'm) uorescence, photochemical ((ΦPSII)), and non-photochemical quenching (qN)) were also affected by different drought stress levels, and their e ciency uctuated with water availability. In the biochemical analysis, shallow signi cant changes occurred in peroxidase (POD), catalase (CAT), and proline content, while malondialdehyde (MDA) showed variation under different drought stress conditions. In the DREB gene expression analysis, eight populations showed high expression pro les compared to the control conditions in Ae. tauschii. The expression pro les in Ae. tauschii showed a high fold increase compared to the control condition, and DREB gene expression correlated with the changes in physiological and biochemical parameters.

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Next Generation Breeding for Abiotic Stress Resistance in Eggplant

Cited by 7 publications

References 188 publications

Revitalizing agriculture: next-generation genotyping and -omics technologies enabling molecular prediction of resilient traits in the Solanaceae family

Revitalizing agriculture: next-generation genotyping and -omics technologies enabling molecular prediction of resilient traits in the Solanaceae family

Validation and identification of new QTLs for plant and fruit developmental and composition traits in eggplant under low N conditions

Analysis of physio-biochemical responses and expressional profiling of DREB transcription factors for drought tolerance in Aegilops tauschii Coss

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