Breeding for Fruit Quality in Pepper (<i>Capsicum</i>spp.)

Paran, Ilan; Fallik, E.

doi:10.1002/9780470959350.ch14

Cited by 13 publications

(12 citation statements)

References 82 publications

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“…Knowledge on the nutraceutical composition of peppers is of limited value if it is not accompanied by an extensive and detailed characterization of fruit phenomics. Fruit size, shape, and weight are essential attributes for the establishment of market types and for the acceptance of new pepper varieties by farmers and consumers [61]. In the present work, a total of 86 plant and fruit characters where investigated by testing traditional descriptors commonly used by breeders and a high-throughput digital assessment, which allowed highly precise dissection of pepper fruit morphometry.…”

Section: Discussionmentioning

confidence: 99%

Phytochemical Assessment of Native Ecuadorian Peppers (Capsicum spp.) and Correlation Analysis to Fruit Phenomics

García‐González

Silvar

2020

Plants

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In this work, the impact of pepper (Capsicum spp.) fruits morphology on their composition for health-promoting compounds was investigated. For that purpose, pepper accessions from Ecuador, one of the hotspots in Capsicum’s origin, were analyzed for ascorbic acid, polyphenols, capsaicinoids, and prevention of cholesterol oxidation. Plant and fruit phenomics were assessed with conventional descriptors and Tomato Analyzer digital traits. Significant differences among accessions and species revealed a large diversity within the collection. The Capsicum frutescens group displayed the highest levels of capsaicinoids, whereas the polyphenols shortly varied among the five domesticated species. Capsicum pubescens exhibited the lowest content of ascorbic acid. The conventional descriptors describing the magnitude of plants and fruits, as well as digital attributes under the categories of size, shape index, and latitudinal section, mostly explained the variance among Capsicum groups. Correlation test revealed that phytochemical components were negatively correlated with the morphometric fruit attributes, suggesting that huge fruits contained lower amounts of nutraceutical compounds. Multivariate analysis showed that parameters related to fruit size, shape, and nutraceutical composition primarily contribute to the arrangement of pepper accessions. Such results suggested that those traits have been subjected to higher selection pressures imposed by humans.

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Section: Discussionmentioning

confidence: 99%

Phytochemical Assessment of Native Ecuadorian Peppers (Capsicum spp.) and Correlation Analysis to Fruit Phenomics

García‐González

Silvar

2020

Plants

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“…The presence of private alleles has been reported for other Capsicum collections (Hanacek et al, 2009;Ibiza et al, 2012;Nicolai et al, 2013) and it might be of adaptive significance, as a result of selection for adaptation to local constraints. Capture and assessment of such specific alleles and genotypes should be an important objective of any conservation and exploitation strategies (Paran and Fallik, 2011).…”

Section: Discussionmentioning

confidence: 99%

Assessing genetic and phenotypic diversity in pepper (Capsicum annuum L.) landraces from North-West Spain

Rivera¹,

Monteagudo

Igartua

et al. 2016

Scientia Horticulturae

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Pepper (Capsicum annuum L.) is one of the most valuable vegetables in the world. Over the last decades, highly performing cultivars have progressively replaced the diversified and heterogeneous landraces worldwide, causing wide genetic erosion in this crop. The recovery of these ancient landraces, which might preserve alleles of agricultural interest and local adaptations, results of pivotal importance for the development of new varieties and the maintenance of a sustainable agriculture. In the present work, a collection of twenty-six landrace-derived inbred lines and three landraces from NorthWest Spain were evaluated for their agronomic performance and genetic diversity based on a set of twenty-seven morphological descriptors and twenty microsatellite markers. The collection featured phenotypic variability for all the studied traits, which were influenced by the location, except for the yield. The principal component analysis divided the landraces in well-defined groups, with only Arnoia, Punxin and Blanco Rosal showing some degree of overlapping. The greater part of the variance was accounted for traits such as fruit weight, pericarp thickness and fruit shape and colour. The molecular analyses suggested a high level of genetic diversity within the collection and the presence of specific alleles, which were not previously detected in other Spanish pepper landraces. Multivariate and Bayesian clustering showed that landraces were primarily grouped according to their geographical origin and secondarily in agreement with the characteristics of their fruits. Six groups of landraces, with a great genetic differentiation, were clearly identified. Only the landraces Mougan and Arnoia possessed an allele associated to the pungency character.

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“…These data bring to light the existence of substantial diversity in the Galician collection manifested as private alleles (some of them already fixed), which might be of adaptive significance, as a result of selection for adaptation to local constraints. Capture and preservation of these specific alleles and genotypes should be an important objective of any conservation strategy and breeding approach (Paran & Fallik 2011).…”

Section: Discussionmentioning

confidence: 99%

Assessing the genetic diversity in onion (Allium cepaL.) landraces from northwest Spain and comparison with the European variability

Rivera¹,

Giménez

Garcés-Claver

et al. 2016

New Zealand Journal of Crop and Horticultural Science

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Fifteen onion landraces from Galicia (northwest Spain) were characterised with a set of 25 microsatellite markers and the genetic variability harboured by this collection was compared with the surrounding diversity by comparison with a representative panel of European onion landraces. Twenty markers were polymorphic allowing the detection of 121 alleles. Ninety-one of these were identified in the Galician group (average of 4.6 distinct alleles per locus) and 9% of the total number of alleles were recorded as unique alleles specifically contributed by onion landraces from northwest Spain. High values of observed and expected heterozygosities were detected for the majority of loci. Wright's fixation index confirmed an excess of heterozygotes and a low level of inbreeding, suggesting that high levels of heterogeneity have accumulated within landraces. Multivariate and STRUCTURE analyses revealed that Galician onions possessed a specific genomic composition different from that found in European landraces. ARTICLE HISTORY

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Breeding for Fruit Quality in Pepper (Capsicumspp.)

Cited by 13 publications

References 82 publications

Phytochemical Assessment of Native Ecuadorian Peppers (Capsicum spp.) and Correlation Analysis to Fruit Phenomics

Phytochemical Assessment of Native Ecuadorian Peppers (Capsicum spp.) and Correlation Analysis to Fruit Phenomics

Assessing genetic and phenotypic diversity in pepper (Capsicum annuum L.) landraces from North-West Spain

Assessing the genetic diversity in onion (Allium cepaL.) landraces from northwest Spain and comparison with the European variability

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