A.P. Viana
Indices estimated using REML/BLUP and introduction of a super-trait for the selection of progenies in popcorn
Selection indices commonly utilize economic weights, which become arbitrary genetic gains. In popcorn, this is even more evident due to the negative correlation between the main characteristics of economic importance - grain yield and popping expansion. As an option in the use of classical biometrics as a selection index, the optimal procedure restricted maximum lik.. Read More»
Genet. Mol. Res. 16(3): gmr16039769
DOI: 10.4238/gmr16039769
Adaptability and stability of conilon coffee in areas of high altitude
In view of the predicted models of global climate change and differences in prices and production costs, there is increased interest in Coffea canephora cultivation in areas of high altitude. However, this species is sensitive to low temperatures, where genotypes vary regarding adaptation/tolerance mechanisms, demonstrating genotype x environment interaction. The ai.. Read More»
Genet. Mol. Res. 13(3): 2014.September.26.26
DOI: 10.4238/2014.September.26.26
Genetic dissection of agronomic traits within a segregating population of breeding table grapes
Grapes (Vitis vinifera) are of great economic importance worldwide. We genetically dissected a table grape breeding population, using hidden Markov models (HMM) applied to quantitative trait locus (QTL) analyses. We evaluated and dissected the following traits: total number of clusters, leaf score, peduncle length, cluster length, number of berries, weight of 10 berries, average seed number, na.. Read More»
Genet. Mol. Res. 12(2): 2013.April.2.11
DOI: 10.4238/2013.April.2.11
Construction of an integrated genetic map for Capsicum baccatum L.
Capsicum baccatum L. is one of the five Capsicum domesticated species and has multiple uses in the food, pharmaceutical and cosmetic industries. This species is also a valuable source of genes for chili pepper breeding, especially genes for disease resistance and fruit quality. However, knowledge of the genetic structure of C. baccatum is limited. A reference map for C. baccatum (2n = 2x = 24) .. Read More»
Genet. Mol. Res. 14(2): 2015.June.18.12
DOI: 10.4238/2015.June.18.12
Genetic dissection of agronomic traits in Capsicum baccatum var. pendulum
Genetic mapping is very useful for dissecting complex agronomic traits. Genetic mapping allows for identification of quantitative trait loci (QTL), provide knowledge on a gene position and its adjacent region, and enable prediction of evolutionary mechanisms, in addition to contributing to synteny studies. The aim of this study was to predict genetic values associated with different agronomic t.. Read More»
Genet. Mol. Res. 14(1): 2015.March.20.23
DOI: 10.4238/2015.March.20.23
Evaluation of genetic dissimilarity in a segregating wine grape population
This study examined the genetic diversity present in a population obtained by crossing two very distinctive varieties of wine grapes (142 progeny from a Riesling x Cabernet Sauvignon cross, including both parents, created at the University of California). The following list of morphological characters were evaluated and found to segregate in this population: cluster.. Read More»
Genet. Mol. Res. 10(4):
Digital phenotyping for quantification of genetic diversity in inbred guava (Psidium guajava) families
Digital image analysis of seeds has been used for the identification of cultivars, determination of seed color and mechanical damage, and classification of different seed sizes. The aim of the present study was to evaluate the efficiency of digital image analysis of seeds for the quantification of genetic diversity among genotypes of inbred guava (Psidium guajava L... Read More»
Genet. Mol. Res. 16(1): gmr16019474
DOI: 10.4238/gmr16019474
Efficiency of circulant diallels via mixed models in the selection of papaya genotypes resistant to foliar fungal diseases
Diallel crossing methods provide information regarding the performance of genitors between themselves and their hybrid combinations. However, with a large number of parents, the number of hybrid combinations that can be obtained and evaluated become limited. One option regarding the number of parents involved is the adoption of circulant diallels. However, informati.. Read More»
Genet. Mol. Res. 13(3): 2014.July.2.9
DOI: 10.4238/2014.July.2.9
Multivariate analysis of morphological characteristics of two species of passion flower with ornamental potential and of hybrids between them
We estimated genetic parameters through multivariate analysis of two species of Passiflora and their hybrids, considered of ornamental potential, based on the morphological characteristics: flower diameter, corona diameter, corona filament size, flower peduncle length, petal length and width, sepal length and width, internode length, stem diameter, leaf length, leaf.. Read More»
Genet. Mol. Res. 10(4): 2011.October.13.3
DOI: 10.4238/2011.October.13.3
Selection of sugar cane full-sib families using mixed models and ISSR markers
In 2006, an experiment examining families belonging to the first selection stage of the Sugar Cane Breeding Program of Universidade Federal Rural do Rio de Janeiro/Rede Interuniversitária para o Desenvolvimento do Setor Sucroalcooleiro was conducted. Families and plants within families were evaluated to select superior plants for subsequent stages of the breeding program. The experiment .. Read More»
Genet. Mol. Res. 13(4):
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