Research Article

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DNA fingerprinting; Fruit-endocarp or fruit-pit characters; Genetic diversity; Olea europaea; SSR

Seventy-seven olive accessions corresponding to 25 cultivars from the Extremadura region of Spain were studied using four microsatellite or SSR markers in order to fingerprint them, and evaluate genetic similarity and relationships between local and introduced olive cultivars. The number of alleles per locus ranged from 4 to 8, with a mean of 6.25 alleles per primer pair (a total of 25 ... more

F.J. Delgado-Martinez; I. Amaya; J.F. Sánchez-Sevilla; M.C. Gomez-Jimenez
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EST-SSR; Genetic diversity; SSR; Tomato varieties

The genetic diversity and relationship of 42 tomato varieties sourced from different geographic regions was examined with EST-SSR markers. The genetic diversity was between 0.18 and 0.77, with a mean of 0.49; the polymorphic information content ranged from 0.17 to 0.74, with a mean of 0.45. This indicates a fairly high degree of diversity among these tomato varieties. Based on the ... more

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Cultivar identification; Genetic diversity; Genetic similarity; ISSR; Olea europaea L.; SSR

The olive tree is an iconic tree of the Mediterranean, and is used extensively to produce high-quality olive oil. Although the China olive industry has just begun to be valued, there were also existed mislabeling and synonyms in introduced cultivars. The aim of this study was to analyze genetic similarities among olive cultivars in China using SSR and ISSR techniques. Thirty-two samples ... more

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Amino acids; Antioxidant potential; cluster analysis; Isozymes; Random amplified polymorphic DNA; Trigonella foenum-graecum L.

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The objectives of this study were to characterize and define homogenous production environments of composite beef cattle in Brazil in terms of climatic and geographic variables by using multivariate exploratory techniques; to evaluate the presence of genotype by environment interaction (GxE) for post-weaning weight gain (PWG), yearling scrotal circumference (SC), and yearling muscling ( ... more

M.L. Santana; J.P. Eler; F.F. Cardoso; L.G. Albuquerque; J.C.C. Balieiro; R.J. Pereira; J.B.S. Ferraz
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cluster analysis; Core collection; Germplasm; Malus domestica; Simple sequence repeat

Several types of information can be used to select core collections, including passport data, agronomic data, and molecular data. However, little is known about the ability of core collections to retain the genetic diversity and structure of the whole collection for characters that were not considered during the selection, particularly when molecular markers are used. In this study, two ... more

W.H. Yun; S.H. Ban; G.H. Kim; J.H. Kim; S.I. Kwon; C. Choi
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cluster analysis; Codon usage frequency; Correlation analysis; ENC-plot; FAD7

In this study, the codon bias of the FAD7 genes among 10 different plant species was analyzed to identify general patterns of codon usage in the FAD7 genes. Our results showed that U-ended or A-ended codons were preferentially used in FAD7 for dicots, whereas G-ended or C-ended codons were preferentially used in FAD7 for monocots. An ENC-plot showed ... more

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cluster analysis; Molecular markers; Opuntia germplasm; Polymorphism; Random amplified polymorphic DNA; Tunisian collection

Opuntia ficus indica is one of the most economically important species in the Cactaceae family. Increased interest in this crop stems from its potential contribution to agricultural diversification, application in the exploitation of marginal lands, and utility as additional income sources for farmers. In Tunisia, O. ficus indica has been affected by drastic genetic ... more

B. Zarroug; G. Baraket; L. Zourgui; S. Souid; S. Hannachi
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cluster analysis; Homology analysis; Structural characteristics; Tomato yellow leaf curl virus

The objective of the present study was to analyze the genetic diversity of tomato yellow leaf curl virus (TYLCV). Representative TYLCV sequences were searched in the National Center for Biotechnology Information database. Comprehensive analysis of TYLCV was performed using bioinformatics by examining gene structure, sequence alignments, phylogeny, GC content, and homology. Forty-eight ... more

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Genetic diversity; RAPD; Triticum aestivum L.

The degree of genetic divergence was estimated in seven wheat genotypes, six exotic genotypes and one local variety, through random amplified polymorphic DNA methodology. A total of 112 DNA fragments were generated by the 15 random primers, with an average of about 7.4 bands per primer. Among the 112, 50 fragments showed polymorphism among the seven wheat genotypes. Nei and Li’s ... more

A. Iqbal; A.S. Khan; I.A. Khan; F.S. Awan; A. Ahmad; A.A. Khan

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