Research Article

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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
Amino acids; Cassava; Interspecific hybrids; Lysine; Methionine; Protein content

Cassava roots have a low-protein content (0.7-2%). Amino acids such as lysine and methionine are also low, and some research reports have indicated the absence of methionine. The amino acid profiles of a common cassava cultivar and an interspecific hybrid, namely ICB 300, were determined using the computerized amino acid analyzer Hitachi L-8500. The interspecific hybrid has 10 times ... more

N.M.A. Nassar; M.V. Sousa
Eugenia; Genetic distances; Isolation-by-distance; Isozymes; Mantel test; Partial Mantel test

Mantel tests of matrix correspondence have been widely used in population genetics to examine microevolutionary processes, such as isolation-by-distance (IBD). We used partial and multiple Mantel tests to simultaneously test long-term historical effects and current divergence and equilibrium processes, such as IBD. We used these procedures to calculate genetic divergence among Eugenia ... more

M.Pires de C. Telles; J.Alexandre Diniz-Filho
cluster analysis; Cynodon dactylon; Genetic diversity; SSR

Fifty-five wild accessions of bermudagrass (Cynodon dactylon) were collected from southwest China (Sichuan, Chongqing, Yunnan, Guizhou, and Tibet), and their genetic diversity was analyzed using simple sequence repeat markers. A total of 267 polymorphic bands were detected with 18 primer combinations. The genetic similarity among the accessions ranged from 0.688 to 0.894 with an ... more

Y. Ling; X.Q. Zhang; X. Ma; S.Y. Chen; T.T. Chen; W. Liu
cluster analysis; Genetic diversity; Lagerstroemia; SSR

Lagerstroemia (crape myrtle) are famous ornamental plants with large pyramidal racemes, long flower duration, and diverse colors. However, little is known about the genetic structure and diversity of germplasm in Lagerstroemia. We genotyped 81 L. indica cultivars, five other species of Lagerstroemia, and 10 interspecific hybrids using 30 simple sequence ... more

D. He; Y. Liu; M. Cai; H.T. Pan; Q.X. Zhang; X.Y. Wang; X.J. Wang
Chicory; cluster analysis; Genetic diversity; Genetic relationship; Sequence-related amplified polymorphism

Chicory is a crop with economically important roles and is cultivated worldwide. The genetic diversity and relationship of 80 accessions of chicories and endives were evaluated by sequence-related amplified polymorphism (SRAP) markers to provide a theoretical basis for future breeding programs in China. The polymorphic rate was 96.83%, and the average polymorphic information content was ... more

X.Y. Liang; X.Q. Zhang; S.Q. Bai; L.K. Huang; X.M. Luo; Y. Ji; L.F. Jiang
cluster analysis; Genotype by environment interaction; Multibreed; Post-weaning gain; Temperature

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
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
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

Q.P. Ma; C. Li; J. Wang; Y. Wang; Z.T. Ding
cluster analysis; Diospyros L.; Genetic diversity; Simple sequence repeat marker

Persimmon (Diospyros L.) is an economically important fruit in the world, and it has been recognized as a healthy nutrient supply for human consumption. In this study, 14 microsatellite markers were developed from an AG/TC and AC/TG-enriched genomic library of Chinese persimmon Mopanshi. Twelve polymorphic markers were selected in 4 related species; these markers showed ... more

Y. Yang; Z.B. Jing; X.F. Ruan; J.M. Cheng