Research Article

Related GMR Articles

10/21/2008
BLUP; interpopulation hybrids; m+a’; Molecular markers; specific combining ability

The present study examined the importance of mean (m+a’ and d) components in the performance of single-cross hybrids for the formation of new populations and determined the contribution of the mixed model (best linear unbiased predictor of random effects, BLUP) method associated with molecular markers for the choice of crosses to obtain interpopulation hybrids. Ten single-cross ... more

M. Balestre; R.G. Von Pinho; J.C. Souza; J.C. Machado
01/11/2011
BLUP; Molecular markers; Similarity-by-descent; Specific combing ability

We examined the usefulness of the best linear unbiased prediction associated with molecular markers for prediction of untested maize double-cross hybrids. Ten single-cross hybrids from different commercial backgrounds were crossed using a complete diallel design. These 10 single-cross hybrids were genotyped with 20 microsatellite markers. The best linear unbiased prediction associated ... more

M. Balestre; R.G. Von Pinho; J.C. Souza
12/14/2010
BLUP; Maize breeding; Mixed models; Untested hybrids

We evaluated the efficiency of the best linear unbiased predictor (BLUP) and the influence of the use of similarity in state (SIS) and similarity by descent (SBD) in the prediction of untested maize hybrids. Nine inbred lines of maize were crossed using a randomized complete diallel method. These materials were genotyped with 48 microsatellite markers (SSR) associated with the QTL regions ... more

D.V. Ferreira; R.G. Von Pinho; M. Balestre; R.L. Oliveira
09/30/2004
A priori choice of hybrid parents; Molecular markers; Morphological markers; Plant species

Plant breeding deals with high-yielding genotypes. However, how best to choose parents of these genotypes remains an unsolved question. Here, we focus on a priori choice based on parental distances by means of agronomic and molecular data. Despite numerous theoretical and empirical studies, a priori choice continues to be a controversial procedure. Both success and ... more

L.Antônio d Dias; E.Augusto de Picoli; R.Barros Rocha; A.Couto Alfenas
12/11/2007
Diversity; Ephedra; Ephedrine; Genetic distance; Molecular markers; Random amplified polymorphic DNA

Ephedra, also known as “ma huang”, is a dioecious, drought- and frost-resistant, perennial, evergreen shrub with compelling medicinal value. The genus is represented by 42 species around the world, 9 of which were provisionally reported from Pakistan. Species of the genus have a controversial taxonomy due to their overlapping morphological features. Conventional tools alone ... more

M.M. Shah; Z.A. Swati; S.H. Shah; A. Pervez; S. Ghafoor; H. Ahmad; U. Farooq
09/30/2007
Atlantic Forest; Brazil; Bristle/hair DNA extraction; Chaetomys subspinosus; Molecular markers; Threatened species

DNA extraction protocols are as varied as DNA sources. When it comes to endangered species, it is especially important to pay attention to all details that ensure the completion of the study goals and effectiveness in attaining useful data for conservation. Chaetomys subspinosus (Rodentia: Erethizontidae) is a secretive arboreal porcupine endemic to certain ecosystems of the ... more

C.G. Oliveira; R.A. Martinez; F.A. Gaiotto
03/09/2007
Azoospermia; Infertility; Molecular markers; Ring-Y

In the present study, we report on the case of a 43-year-old male patient seeking for fertility assistance, who showed a seminal analysis and testicular biopsy of complete azoospermia. Peripheral blood culture for chromosome studies revealed a karyotype of 46 chromosomes with a ring-Y-chromosome that lost the long arm heterochromatin. Molecular analysis of genomic DNA from the patient detected ... more

F.M. Carvalho; E.V. Wolfgramm; I. Degasperi; B.M. Verbeno; B.A. Vianna; F.F. Chagas; F. Paula; I.D. Louro; A.M.S. Perroni
08/11/2006
BoLA; Bovine; Candidate genes; Cattle; Molecular markers; Tick resistance

Losses caused by bovine tick burdens in tropical countries have a tremendous economic impact on production systems. Besides reducing production, this parasite can cause death in the most susceptible animals. The use of commercial acaricides has been the major method of control, but their misuse has led to tick resistance to many chemicals. More recently, vaccines have been used in ... more

M.L. Martinez; M.A. Machado; C.S. Nascimento; M.V.G.B. Silva; R.L. Teodoro; J. Furlong; M.C.A. Prata; A.L. Campos; M.F.M. Guimarães; A.L.S. Azevedo; M.F.A. Pires; R.S. Verneque
11/17/2009
Genetic polymorphisms; Lipid profile; Marker assisted selection; Molecular markers; Nellore cattle; Single nucleotide polymorphisms
F.M. Rezende
10/20/2009
Molecular markers; Olea europaea; Olive; Simple sequence repeat markers

The southern Marmara region in Turkey was surveyed to determine the olive cultivars that are used for olive production. Genetic diversity analysis using simple sequence repeat (SSR) markers indicated that the cultivar Gemlik is the major olive cultivar grown in this region, while other olive cultivars are grown only for use as pollinators of Gemlik or for growers’ own exotic consumption ... more

A. Ipek; E. Barut; H. Gulen; A.T. Oz; N.A. Tangu; M. Ipek

Pages