Genetic Variability
Genetic variability in wild genotypes of Passiflora cincinnata based on RAPD markers
Authors: C.B.M. Cerqueira-Silva, L.D.H.C.S. Concei�§�£o, E.S.L. Santos, C.B. Cardoso-Silva, A.S. Pereira, A.C. Oliveira and R.X. Corr�ªa
The genetic diversity and characteristics of commercial interest of Passiflora species make it useful to characterize wild germplasm, because of their potential use for fruit, ornamental and medicinal purposes. We evaluated genetic diversity, using RAPD markers, of 32 genotypes of Passiflora cincinnata collected from the wild .. Read More»
- Genet. Mol. Res. 9(4):
- vol9-4gmr981
- DOI:
- 10.4238/vol9-4gmr981
High degree of genetic diversity among genotypes of the forage grass Brachiaria ruziziensis (Poaceae) detected with ISSR markers
Authors: A.L.S. Azevedo, P.P. Costa, M.A. Machado, C.M.P. de Paula and F.S. Sobrinho
The grasses of the genus Brachiaria account for 80% of the cultivated pastures in Brazil. Despite its importance for livestock production, little information is available for breeding purposes. Embrapa has a population of B. ruziziensis from different regions of Brazil, representing most of existing variability. This populatio.. Read More»
- Genet. Mol. Res. 10(4):
- 2011.November.17.5
- DOI:
- 10.4238/2011.November.17.5
Genetic relationships among Heliconia (Heliconiaceae) species based on RAPD markers
Authors: L.P. Marouelli, P.W. Inglis, M.A. Ferreira and G.S.C. Buso
The family Heliconiaceae contains a single genus, Heliconia, with approximately 180 species of Neotropical origin. This genus was formerly allocated to the family Musaceae, but today forms its own family, in the order Zingiberales. The combination of inverted flowers, a single staminode and drupe fruits is an exclusive charact.. Read More»
- Genet. Mol. Res. 9(3):
- vol9-3gmr847
- DOI:
- 10.4238/vol9-3gmr847
Genetic differences between strains of Biomphalaria glabrata (Planorbidae) that are susceptible and unsusceptible to schistosomiasis
Authors: A.L.D. Oliveira, D. Da Silva, B.C. Manzano, A.Z. Abdel-Hamid, M.Y. Marcelino, E.M. Zanotti-Magalh�£es, L.A. Magalh�£es and J.T. Ribeiro-Paes
Despite the implementation control programs, schistosomiasis continues to spread throughout the world. Among modern control strategies, vector control is currently being emphasized. Within this context, analysis of the genetic variability of intermediate host snails (Biomphalaria spp) is important because it allows identificat.. Read More»
- Genet. Mol. Res. 9(3):
- vol9-3gmr821
- DOI:
- 10.4238/vol9-3gmr821
RAPD analysis of the genetic diversity of mango (Mangifera indica) germplasm in Brazil
Authors: I.G.B. Souza, S.E.S. Valente, F.B. Britto, V.A.B. de Souza and P.S.C. Lima
We evaluated genetic variability of mango (Mangifera indica) accessions maintained in the Active Germplasm Bank of Embrapa Meio-Norte in Teresina, Piauí, Brazil, using RAPDs. Among these accessions, 35 originated from plantings in Brazil, six from the USA and one from India. Genomic DNA, extracted from leaf material usi.. Read More»
- Genet. Mol. Res. 10(4):
- 2011.December.14.1
- DOI:
- 10.4238/2011.December.14.1
Lack of interpopulation genetic structure in the genus Stegastes (Perciformes) with indication of local introgression
Authors: E.A. Dias Jr., A.S. Souza and W.F. Molina
The family Pomacentridae comprises about 326 species belonging to 28 genera. The genus Stegastes is composed of nearly 33 species, and 8 are endemic to the Brazilian Province, inhabiting the Brazilian coast (Stegastes fuscus, S. variabilis, S. leucosticus, S. uenfi, and S. pictus) or Western Atlantic oceanic islands (S. trinda.. Read More»
- Genet. Mol. Res. 6(4):
Evaluation of genetic similarity between accessions of Pityrocarpa moniliformis (angico-de-bezerro) using RAPD markers
Authors: F.M.S. Sousa, R.M. Mendes, R.F.M. Mendes, R.B. Araujo Neto, M.P.S.B.C. Nascimento and P.S.C. Lima
Pityrocarpa moniliformis (Benth.) Luckow and Jobson, commonly known as angico-de-bezerro, is a forage legume that occurs naturally in the Caatinga of northeastern Brazil. This fast growing, vigorous, melliferous tree is well adapted to arid terrains and its branches and leaves possess high nutritional value. However, the scarcity of information r.. Read More»
- Genet. Mol. Res. 13(3):
- 2014.July.29.9
- DOI:
- 10.4238/2014.July.29.9
Genetic structure in Brazilian breeding colonies of the Roseate Spoonbill (Platalea ajaja, Aves: Threskiornithidae)
Authors: Mino CI and Del Lama SN
Roseate Spoonbills (Platalea ajaja, Linnaeus) are wading birds present in two of the most important Brazilian wetlands: the Pantanal wetlands and Rio Grande do Sul marshes. Natural populations of these species have not been previously studied with variable nuclear molecular markers. In order to support decision making regardin.. Read More»
- Genet. Mol. Res. 6(2):
Sexual recombination in Colletotrichum lindemuthianum occurs on a fine scale
Authors: E.A. Souza, O.A. Camargo Jr. and J.M.A. Pinto
Glomerella cingulata f. sp phaseoli is the sexual phase of the fungus Colletotrichum lindemuthianum, the causal agent of common bean anthracnose. This fungus is of great concern, because it causes large economic losses in common bean crops. RAPD markers of five populations of G. cingulata f. sp phaseoli from two Brazilian stat.. Read More»
- Genet. Mol. Res. 9(3):
- vol9-3gmr863
- DOI:
- 10.4238/vol9-3gmr863
EPSPS variability, gene expression, and enzymatic activity in glyphosate-resistant biotypes of Digitaria insularis
Authors: E. Galeano, A.A.M. Barroso, T.S. Vasconcelos, A. L�³pez-Rubio, A.J.P. Albrecht, R. Victoria Filho and H. Carrer
Weed resistance to herbicides is a natural phenomenon that exerts selection on individuals in a population. In Brazil, glyphosate resistance was recently detected in Digitaria insularis. The objective of this study was to elucidate mechanisms of weed resistance in this plant, including genetic variability, allelism, amino acid substitutions, gene expressi.. Read More»
- Genet. Mol. Res. 15(3):
- gmr.15038730
- DOI:
- 10.4238/gmr.15038730