Morphological Characteristics and Powdery Mildew Resistance of Cucumis Melo Land Races in Greece

Fanourakis, Nikolaos; Tsekoura, Z.; Nanou, E.

doi:10.17660/actahortic.2000.510.39

Cited by 10 publications

(5 citation statements)

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“…Today the variation of the inodorus group is maintained in groups of landraces in different Mediterranean countries such as Greece and Italy [ 47 , 55 , 56 ]. The Iberian Peninsula is considered to be a secondary diversification center for melon and is a major world producer of inodorus cultivars [ 57 ].…”

Section: Resultsmentioning

confidence: 99%

Transcriptome sequencing for SNP discovery across Cucumis melo

et al. 2012

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BackgroundMelon (Cucumis melo L.) is a highly diverse species that is cultivated worldwide. Recent advances in massively parallel sequencing have begun to allow the study of nucleotide diversity in this species. The Sanger method combined with medium-throughput 454 technology were used in a previous study to analyze the genetic diversity of germplasm representing 3 botanical varieties, yielding a collection of about 40,000 SNPs distributed in 14,000 unigenes. However, the usefulness of this resource is limited as the sequenced genotypes do not represent the whole diversity of the species, which is divided into two subspecies with many botanical varieties variable in plant, flowering, and fruit traits, as well as in stress response. As a first step to extensively document levels and patterns of nucleotide variability across the species, we used the high-throughput SOLiD™ system to resequence the transcriptomes of a set of 67 genotypes that had previously been selected from a core collection representing the extant variation of the entire species.ResultsThe deep transcriptome resequencing of all of the genotypes, grouped into 8 pools (wild African agrestis, Asian agrestis and acidulus, exotic Far Eastern conomon, Indian momordica and Asian dudaim and flexuosus, commercial cantalupensis, subsp. melo Asian and European landraces, Spanish inodorus landraces, and Piel de Sapo breeding lines) yielded about 300 M reads. Short reads were mapped to the recently generated draft genome assembly of the DHL line Piel de Sapo (inodorus) x Songwhan Charmi (conomon) and to a new version of melon transcriptome. Regions with at least 6X coverage were used in SNV calling, generating a melon collection with 303,883 variants. These SNVs were dispersed across the entire C. melo genome, and distributed in 15,064 annotated genes. The number and variability of in silico SNVs differed considerably between pools. Our finding of higher genomic diversity in wild and exotic agrestis melons from India and Africa as compared to commercial cultivars, cultigens and landraces from Eastern Europe, Western Asia and the Mediterranean basin is consistent with the evolutionary history proposed for the species. Group-specific SNVs that will be useful in introgression programs were also detected. In a sample of 143 selected putative SNPs, we verified 93% of the polymorphisms in a panel of 78 genotypes.ConclusionsThis study provides the first comprehensive resequencing data for wild, exotic, and cultivated (landraces and commercial) melon transcriptomes, yielding the largest melon SNP collection available to date and representing a notable sample of the species diversity. This data provides a valuable resource for creating a catalog of allelic variants of melon genes and it will aid in future in-depth studies of population genetics, marker-assisted breeding, and gene identification aimed at developing improved varieties.

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Section: Resultsmentioning

confidence: 99%

Transcriptome sequencing for SNP discovery across Cucumis melo

et al. 2012

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“…Cucumber linkage maps have been constructed using phenotypic markers (Fanourakis and Simon 1987;Pierce and Wehner 1990;Vakalounakis 1992), isozymes , isozymes and phenotypic markers Staub 1996a, 1996b), and combinations of molecular (RFLP, RAPD, isozyme) and phenotypic markers (Kennard et al 1994;Serquen, Bacher, and Staub 1997a). The maps of Fanourakis and Simon (1987), Knerr and Staub (1992a), Vakalounakis (1992), Kennard et al (1994), Meglic and Staub (1996a,b), Serquen, Bacher, and Staub (1997a), and Park et al (2000) spanned 168, 166, 95, 766 (narrow-based) and 480 (widebased), 584, 600, and 816 cM, respectively (750-1000 cM total genome length).…”

Section: Mappingmentioning

confidence: 99%

“…The maps of Fanourakis and Simon (1987), Knerr and Staub (1992a), Vakalounakis (1992), Kennard et al (1994), Meglic and Staub (1996a,b), Serquen, Bacher, and Staub (1997a), and Park et al (2000) spanned 168, 166, 95, 766 (narrow-based) and 480 (widebased), 584, 600, and 816 cM, respectively (750-1000 cM total genome length). These reports have been augmented more recently with markers associated with basic cell functions (Xie, Wehner, and Conkling 2002;Xie et al 2003) and cytoplasmic factors controlling economically important traits .…”

Section: Mappingmentioning

confidence: 99%

“…600 cM with an average distance between RAPD markers of 8.4 cM. Information from the Serquen, Bacher, and Staub (1997a) map was recently merged with other maps (Fanourakis and Simon 1987;Knerr and Staub 1992;Kennard et al 1994;Staub 1996a, 1996b;Horejsi, Staub, and Thomas 2000) to synthesize a consensus map containing 255 markers, including morphological traits, disease resistance loci, isozymes, RFLPs, RAPDs, and AFLPs spanning ten linkage groups (Bradeen et al 2001). The mean marker interval in this consensus map was 2.1 cM, spanning a total length of 538 cM.…”

Section: Mappingmentioning

confidence: 99%

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Cucurbits (Cucurbitaceae; Cucumis spp., Cucurbita spp., Citrullus spp.)

Lebeda¹,

Widrlechner²,

Staub³

et al. 2006

Genetic Resources Chromosome Engineering &Amp; Crop Improvement

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“…Melon (Cucumis melo L.) is a morphologically diverse crop with a wide range of polymorphic fruit types [1] belonging to the Cucurbitaceae family, which also includes several other important vegetables, such as watermelon, gourds, pumpkin, and cucumber [2]. Traditionally, in the Mediterranean region, snake melon (Cucumis melo L. subsp.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical, Structural, and Functional Properties of Snake Melon (Cucumis melo subsp. melo Var. flexuosus) Microencapsulated with Pea Protein and Pea Fibre by Freeze-Drying

Igual

Flores-León

Picó

et al. 2023

Foods

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The purpose of this study was to obtain a functional, stable powder product from Cucumis melo subsp. melo Var. flexuosus (L.) to promote its consumption and reduce waste and production losses. The melons were ground and freeze-dried with or without biopolymers (pea protein (PPSM) or pea fibre (PFSM)). The physicochemical, structural, and functional properties of the powder were studied. The water content, water activity, bulk density, porosity, Hausner ratio, Carr index, hygroscopicity, water solubility, water absorption index, particle size, colour, and microstructure of the powder were determined. In addition, vitamin C, folates, chlorophyll a, total phenols and carotenoids, antioxidant capacity, and powder encapsulation efficiency were analysed. Snake melon (SM) powders contained vitamin C, folates, carotenoids, chlorophyll a, and phenols, which contributed to their antioxidant capacity. The incorporation of PP or PF in the formulation before lyophilisation generated stable encapsulates that protected the bioactive compounds. PPSM and PFSM were less hygroscopic and more free-flowing and had lower water content and water activity compared to the SM. PFSM showed higher encapsulation efficiency and smaller particles with a smooth surface and oval shape.

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Morphological Characteristics and Powdery Mildew Resistance of Cucumis Melo Land Races in Greece

Cited by 10 publications

References 0 publications

Transcriptome sequencing for SNP discovery across Cucumis melo

Transcriptome sequencing for SNP discovery across Cucumis melo

Cucurbits (Cucurbitaceae; Cucumis spp., Cucurbita spp., Citrullus spp.)

Physicochemical, Structural, and Functional Properties of Snake Melon (Cucumis melo subsp. melo Var. flexuosus) Microencapsulated with Pea Protein and Pea Fibre by Freeze-Drying

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