Chile Pepper (Capsicum) Breeding and Improvement in the “Multi-Omics” Era

Lozada, Dennis N.; Bosland, Paul W.; Barchenger, Derek W.; Haghshenas-Jaryani, Mahdi; Sanogo, Soum; Walker, Stephanie

doi:10.3389/fpls.2022.879182

Cited by 25 publications

(11 citation statements)

References 158 publications

(160 reference statements)

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“…outcrossing) species 10 , however, commercial pepper varieties are managed and bred as fully autogamous 11 . Hybridization between pepper varieties or species was generally used for fundamental research to identify genes of interest, but more recently it has become commonplace as a breeding tool per se 12 . Hybridization breeding allows the combination of dominantly inherited traits, including disease resistance and agronomic traits 13 .…”

Section: Introductionmentioning

confidence: 99%

Heterosis for capsacinoids accumulation in chili pepper hybrids is dependent on parent-of-origin effect

Naves

Scossa

Araújo

et al. 2022

Sci Rep

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Heterosis for agronomic traits is a widespread phenomenon that underpins hybrid crop breeding. However, heterosis at the level of cellular metabolites has not yet been fully explored. Some metabolites are highly sought after, like capsaicinoids found in peppers of the Capsicum genus, which confer the characteristic pungent (‘hot’) flavour of the fruits. We analysed the metabolic profile of the fruit placenta and pericarp of inter- and intra-specific hybrids of two species of Capsicum peppers, C. chinense (cv. Habanero and cv. Biquinho) and C. annuum var. annuum (cv. Jalapeño and cv. Cascadura Ikeda) in complete diallel crosses with reciprocals. The parents and hybrids were grown in a glasshouse and the profile of primary metabolites (sugars, amino acids and organic acids) and capsaicinoids was generated via gas chromatography–time of flight-mass spectrometry (GC–TOF-MS) and ultra-performance liquid chromatography coupled to a mass spectrometer (UPLC-MS), respectively. We found considerable heterotic effects specifically for capsaicinoids accumulation in the fruit placenta of the hybrids, including those derived from non-pungent parents. Furthermore, a large fraction of fruit primary metabolism was influenced by the specific cross combination, with marked parent-of-origin effects, i.e. whether a specific genotype was used as the pistillate or pollen parent. The differences in metabolite levels between the hybrids and their parents provide a snapshot of heterosis for primary and secondary metabolites and may contribute to explain the manifestation of whole-plant heterotic phenotypes.

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Section: Introductionmentioning

confidence: 99%

Heterosis for capsacinoids accumulation in chili pepper hybrids is dependent on parent-of-origin effect

Naves

Scossa

Araújo

et al. 2022

Sci Rep

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“…It might also be necessary to survey the metabolite compositions of cultivated and wild relatives of the chile pepper for a more robust foundation for targeted genomic breeding strategies [ 39 ]. Altogether, ‘multi-omics’ tools (e.g., genomics + metabolomics) can help plant breeders perform informed breeding and selection decisions for the development of cultivars with improved nutritional quality traits [ 51 ].…”

Section: Discussionmentioning

confidence: 99%

Widely Targeted Metabolomics Reveals Metabolite Diversity in Jalapeño and Serrano Chile Peppers (Capsicum annuum L.)

2023

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Chile peppers (Capsicum annuum L.) are good sources of vitamins and minerals that can be included in the diet to mitigate nutritional deficiencies. Metabolomics examines the metabolites involved in biological pathways to understand the genes related to complex phenotypes such as the nutritional quality traits. The current study surveys the different metabolites present in jalapeño (‘NuMex Pumpkin Spice’) and serrano (‘NuMex LotaLutein’) type chile peppers grown in New Mexico using a widely targeted metabolomics approach, with the ‘NuMex LotaLutein’ as control. A total of 1088 different metabolites were detected, where 345 metabolites were differentially expressed; 203 (59%) were downregulated and 142 (41%) were upregulated (i.e., relative metabolite content is higher in ‘NuMex Pumpkin Spice’). The upregulated metabolites comprised mostly of phenolic acids (42), flavonoids (22), and organic acids (13). Analyses of principal component (PC) and orthogonal partial least squares demonstrated clustering based on cultivars, where at least 60% of variation was attributed to the first two PCs. Pathway annotation identified 89 metabolites which are involved in metabolic pathways and the biosynthesis of secondary metabolites. Altogether, metabolomics provided insights into the different metabolites present which can be targeted for breeding and selection towards the improvement of nutritional quality traits in Capsicum.

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“…A recent review paper highlighted the significance of available multi-omics such as genomics, transcriptomics, metabolomics, proteomics, epigenomics, phenomics, speed breeding, agricultural robotics and panomics data on capsicum breeding and suggested the integration of these multi-omics would advance the understanding of the genetic basis for the various traits of the chilli and help quickly develop the chilli hybrids with the desired traits [31]. Moreover, acquiring the knowledge on chilli genetic diversity is paramount in developing new varieties, therefore, in China, a recent study was aimed on analysis of genetic diversity between 94 local landraces and 85 current breeding lines by evaluating 22 qualitative traits, 13 quantitative traits and 27 molecular markers, and found that mean values of Gene Diversity index and Polymorphism Information content of local landraces were higher than breeding lines, hence recommended for interspecific crosses between landraces and breeding lines to expand the genetic background of the breeding material (Fig.…”

Section: Molecular Studies In Chillimentioning

confidence: 99%

Recent Advances in Crop Improvement of Chilli (Capsicum annuum L.) for High Fruit Yield and Quality

Komala¹,

Lakshmi²,

Madhavi³

2023

JEAI

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Capsicum annuum L. is an indispensable spice cum vegetable crop cultivated worldwide for its edible fruit. The current research is majorly focused on the development of improved chilli varieties to achieve high fruit yield and quality to meet the rapidly growing market demands. Therefore, the screening of the chilli landraces and local cultivars for the genetic variation would provide best parents for the chilli crop improvement. Most of the recent chilli breeding programmes involve the assessment of genetic variation among the genotypes by the estimation of important genetic variation parameters such as phenotypic and genotypic coefficients of variation, heritability and genetic advance, gene flow, and cluster analysis. Correlation and path coefficient analysis was also applied to evaluate the progeny to understand the association between desired traits. The popular DNA-based molecular marker system, simple sequence repeat, is predominantly applied to understand the genetic variation as well as to select the desired progeny. In this current review, we discussed such recent research reports on chilli crop improvement for high fruit yield and quality, highlighted the recent major achievements and provided the important information for the chilli breeders. We hope this current review would shed light on recent developments in chilli crop improvement and help chilli breeders for their future breeding programmes.

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Chile Pepper (Capsicum) Breeding and Improvement in the “Multi-Omics” Era

Cited by 25 publications

References 158 publications

Heterosis for capsacinoids accumulation in chili pepper hybrids is dependent on parent-of-origin effect

Heterosis for capsacinoids accumulation in chili pepper hybrids is dependent on parent-of-origin effect

Widely Targeted Metabolomics Reveals Metabolite Diversity in Jalapeño and Serrano Chile Peppers (Capsicum annuum L.)

Recent Advances in Crop Improvement of Chilli (Capsicum annuum L.) for High Fruit Yield and Quality

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