Genetic relationships among melon breeding lines revealed by RAPD markers and agronomic traits

García, Esther Lilia Peralta; Jamilena, Manuel; Alvarez, J; Arnedo, T.; Oliver, José Luis Tejera; Lozano, Rafael

doi:10.1007/s001220050815

Cited by 88 publications

(66 citation statements)

References 24 publications

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“…Phenotypic and molecular selection of yellow passion fruit progenies in the second cycle of recurrent selection between agronomic and molecular data, although low (0.18 and 0.15 for AFLP and microsatellite data, respectively). Contrariwise, for common bean, Duarte et al (1999) reported a correlation of 0.89 between genetic distances obtained by phenotypic data and RAPD markers, while Garcia et al (1998) found a correlation of 0.79 in the analysis of 32 improved lines of melon. Such contradictions are common in the literature; there are reports that small distances estimated by molecular markers are associated with short phenotypic distances and that greater molecular distances are associated with both large and small phenotypic distances (Lefebvre et al 2001).…”

Section: Resultsmentioning

confidence: 93%

Phenotypic and molecular selection of yellow passion fruit progenies in the second cycle of recurrent selection

Reis

Viana

Oliveira

et al. 2012

Crop Breed. Appl. Biotechnol.

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Section: Resultsmentioning

confidence: 93%

Phenotypic and molecular selection of yellow passion fruit progenies in the second cycle of recurrent selection

Reis

Viana

Oliveira

et al. 2012

Crop Breed. Appl. Biotechnol.

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“…C. melo is, therefore, considered the most diverse species in Cucumis (Stepansky et al 1999). Genetic diversity studies have used isozymes (Staub et al 1997;Akashi et al 2002), RFLPs (Zheng et al 1999), RAPDs (Garcia et al 1998;Stepansky et al 1999;Mliki et al 2001;López-Sesé et al 2003;Staub et al 2004;Sensoy et al 2007;Tanaka et al 2007), AFLPs (GarciaMas et al 2000), ISSR and simple-sequence repeat (SSR) (Katzir et al 1996;Staub et al 2000;Daning-Poleg et al 2001;López-Sesé et al 2002;Monforte et al 2003;Nakata et al 2005;Tzitzikas et al 2009) to analyze variability and relationships among melon groups. These studies have assisted in the elucidation of intraspecific relationships in melons from different origins.…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity among melon accessions from Iran and their relationships with melon germplasm of diverse origins using microsatellite markers

et al. 2013

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Melon is one of the most important horticultural crops in Iran. There are a few studies on the genetic structure of Iranian melon. A set of 18 simple sequence repeat (SSR) primer pairs were used to assess the genetic diversity in a collection of 24 melon accessions representing different botanical groups of Iranian cultivated melons (vars. inodorus, cantalupensis and dudaim), along with 28 reference accessions from diverse geographic origin. All studied SSR loci were polymorphic that confirmed their usefulness for genetic analysis of melons. A total number of 141 alleles were detected, with an average of 7.8 alleles per locus for reference genotypes and 4.38 alleles per locus for Iranian accessions. The low variability within Iranian melon accessions is reflected by the low values of the observed heterozygosity (with an average of 0.119), indicating lack of intercrossing between accessions or a high rate of self-pollination. Values of observed homozygosity for ''Suski-e-Sabz'' and ''Khatouni'', as the most cultivated melon in Iran, were 0.98 and 0.99, respectively. Cluster analysis divided Iranian accessions into two major groups. The highest level of polymorphism was detected among the dudaim group. The analysis of molecular variance indicated that the majority of variation (87 %) was due to the difference within accessions. The average pairwise genetic distance among Iranian accessions was 0.674.Our results showed a distinct separation of dudaim group from the rest of Iranian accessions, even separated two different groups of var. dudaim with different traits. There was a wide genetic distance between Honey Dew, as the most popular member of inodorus group worldwide and ''Khatouni'', a major Iranian winter melon (GD = 0.809). This genetic distance shows the importance of Iranian accessions for conservation and use in breeding programs.

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“…Genetic differentiation drives genetic diversity (Schaal et al, 1991) and the relationship between genetic differentiation and environmental factors has been a focus of recent studies (Rossetto et al, 2009;Finger et al, 2010;Santos et al, 2010;Martins et al, 2011). Random amplified polymorphic DNA (RAPD) markers can cover the total genome of organisms, including coding and noncoding regions, and reflect differences in the whole genome (Garcia et al, 1998). It has become one of the most popular sequencing techniques (Nybom, 2004), especially when prior sequence information is unavailable, which is the case for the genus Stipa.…”

Section: Introductionmentioning

confidence: 99%

Impact of climatic factors on genetic diversity of Stipa breviflora populations in Inner Mongolia

Zhang¹,

Niu²,

Wu³

et al. 2012

Genet. Mol. Res.

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ABSTRACT. Genetic diversity of Stipa breviflora populations in the Inner Mongolian grasslands of China and its possible correlation with climatic factors was examined using geographic information systems and random amplified polymorphism DNA analysis. A total of 308 bands were produced with 28 arbitrary decamer oligonucleotide. Three major findings were demonstrated. First, the genetic diversity of S. breviflora was high but lower than that of Stipa grandis and Stipa krylovii. Second, genetic distances between the populations analyzed using the unweighted pair group method and the Mantel test had a highly positive correlation with geographical distances, indicating that spatial separation of this species in the studied area produced genetic shift in the population. Finally, both canonical correspondence and Pearson's analyses revealed strong correlations between genetic differentiation and temperature in the area. We therefore conclude that temperature variations play an important role in genetic differentiations among the investigated S. breviflora populations.

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Genetic relationships among melon breeding lines revealed by RAPD markers and agronomic traits

Cited by 88 publications

References 24 publications

Phenotypic and molecular selection of yellow passion fruit progenies in the second cycle of recurrent selection

Phenotypic and molecular selection of yellow passion fruit progenies in the second cycle of recurrent selection

Genetic diversity among melon accessions from Iran and their relationships with melon germplasm of diverse origins using microsatellite markers

Impact of climatic factors on genetic diversity of Stipa breviflora populations in Inner Mongolia

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