Research Article

Related GMR Articles

12/02/2015
Anthropic effects; Endangered species; Genetic variability; Molecular markers; Population genetics

Phyla scaberrima (Verbenaceae) is a herbaceous peren­nial species that is distributed from Mexico (center of origin) to Colom­bia, growing in forest and swamp edges or grasslands from sea level up to an altitude of 1800 m. The chemical properties and uses in popular medicine have drastically affected the population size of this species. In this study, we investigated genetic ... more

L.G. Androcioli; E.A. Ruas; L.A. Rodrigues; C.F. Ruas; H.E.R. Perilla; P.M. Ruas
12/28/2015
Genetic diversity; Germplasm; ISSR; Morpho-agronomy; Perennial ryegrass; RAPD

Tunisia is rich in diverse forage and pasture species including perennial ryegrass. In order to enhance forage production and improve agronomic performance of this local germplasm, a molecular analysis was undertaken. Random amplified polymorphic DNA (RAPD), inter simple sequence repeats (ISSR) and morpho-agronomical traits markers were used for genetic diversity estimation of ryegrass ... more

S. Ghariani; H. Elazreg; N. Chtourou-Ghorbel; M. Chakroun; N. Trifi-Farah
10/21/2017
Clithon retropictum; Conservation; Endangered species; Genetic variability; Microsatellite loci

The neritid species Clithon retropictum (Gastropoda), an oviparous snail, is distributed in freshwater and brackish water in southern Korea, south-east Japan, southern China and Taiwan. This species is listed as a class II endangered species in Korea because of its decreasing population size. It has led to an increase in the need for genetic information about this ... more

Y.Se Hyun; H.Yeun Song; M.Seop Kim; H.Suck An
12/07/2015
Cerrado; Genetic variability; Hancornia speciosa; Mangabeira; Molecular markers; Transferability frequency

Hancornia speciosa, popularly known as mangabeira, is a fruit tree native to the Brazilian Cerrado that shows great economic potential, due to its multiple uses. Intraspecific classification of this species is difficult because it shows high morphological diversity. An early study of the species reported that there are six botanic varieties that differ morphologically mainly in ... more

C.A. Nogueira; N.B. Stafuzza; T.P. Ribeiro; A.D.L. Prado; I.P.P. Menezes; N. Peixoto; P.J. Gonçalves; L.M. Almeida
12/28/2015
Conservation; Genetic variability; Harvesting; ISSR

Maytenus truncata (Celastraceae) is a plant species widely used in the treatment of ulcers and tumors. Despite the intensive harvest of native specimens in the State of Bahia, northeastern Brazil, there is no information about the genetic variability or structure of this species. Therefore, the goal of this study was to estimate the genetic diversity and population structure of ... more

R.R. Simplicio; A.M. Waldschmidt; M.B. Amorim; B.S. Almeida; D.G. Pereira
12/30/2002
Bipolaris sorokiniana; Genetic variability; RAPD; Wheat

Isolates of Bipolaris sorokiniana were analyzed by random-amplified polymorphic DNA (RAPD) techniques to determine the amount of intraspecific genetic variability and to study host-pathogen interactions. Ten isolates originated from different regions of Brazil were examined. Plants of the wheat cultivars BR8, BH1146 (original host) and IAC-5 Maringá, classified as resistant ... more

A.T.S. Matsumura; A.M. Prestes; S.T. Van Der Sand; A.M.R. de Oliveira
10/05/2007
CTAB; DNA extraction protocol; PVP; RAPD; Sunflower

In order to investigate the mutation characteristics and to further examine the genetic variation of mutant sunflower (Helianthus annuus) obtained in plants grown from seeds exposed to space conditions, only the mature tissues such as leaf and flower could be used for DNA extraction after mutation characteristics were confirmed. The rich contents of polysaccharides, tannins ... more

J.T. Li; D.C. Chen; X.L. Zhang; Z.S. Tang; J. Yang
08/07/2007
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
02/12/2007
Boll weevil; Isozymes; RAPD; Variability

Twenty-five RAPD loci and 6 isozyme loci were studied to characterize the genetic variability of natural populations of Anthonomus grandis from two agroecosystems of Brazil. The random-amplified polymorphic DNA data disclosed a polymorphism that varied from 52 to 84% and a heterozygosity of 0.189 to 0.347. The index of genetic differentiation (GST) among the six ... more

W.F.S. Martins; C.F.J. Ayres; W.A. Lucena
10/26/2006
Ganga; Hooghly; Narmada; PCR; RAPD; Tenualosa ilisha; Yamuna

RAPD was used to delineate the hilsa populations sampled from the Ganga, Yamuna, Hooghly, and Narmada Rivers at six different locations. Six degenerate primers were used to generate the fragment patterns from the samples collected. All primers were highly polymorphic and generated high numbers of amplification products. Nei’s genetic distances were calculated between locations. The ... more

M.P. Brahmane; M.K. Das; M.R. Sinha; V.V. Sugunan; A. Mukherjee; S.N. Singh; S. Prakash; P. Maurye; A. Hajra

Pages