Plant Genetics
Comparison of eight methods to isolate genomic DNA from Hancornia speciosa
Authors: V.M. Almeida, G.A. Luz, P.P. Martins, M.F.C. Gomes, M.F. Costa, P.S.C. Lima and S.E.S. Valente
Mangabeira (Hancornia speciosa) is a native fruit tree found mainly in the Cerrado biome and shows great economic potential due to its multiple uses; the fruits are used in agriculture, are important as a food resource, and can be consumed in natura or processed. Due to a reduction in the area of ecosystems where it occurs, ma.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039724
- DOI:
- 10.4238/gmr16039724
Efficiency of selection per se and in single-cross hybrids for disease resistance in maize
Authors: R.B. Camargos, R.G. Von Pinho, M. Balestre, R.A.D.C. Ferreira, K.O.G. Dias, L.P.M. Pires and V.F. Souza
Plant breeding strategies are constantly refined to increase efficiency during the selection process. Consequently, the aims of this study were to examine genetic control and efficiency of selection based on the per se performance of maize lines and based on hybrid performance in reaction to white spot, common rust, and ear ro.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039716
- DOI:
- 10.4238/gmr16039716
Investigation on possible occurrence of somaclonal effects in zygotic and embryonic cotton structures based on agronomical traits
Authors: T.C. Soares, J.M.F.C. Carvalho, L.M. Lima, R.M.M. Freire,C.R.C. Silva, P.A. Melo Filho and R.C. Santos
Zygotic and embryonic cotton structures were used in in vitro procedures to obtain stable plants. Zygotes (24, 48, and 72 h) and immature embryos (10 and 25 days after fertilization) were grown in MS medium supplemented with glucose, indoleacetic acid, kinetin, and activated charcoal. Regenerated seedlings were acclimatized an.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039711
- DOI:
- 10.4238/gmr16039711
Genetic diversity among Hymenaea courbaril L. genotypes naturally occurring in the north of Mato Grosso State, Brazil
Authors: V.D. Rocha, P.V. Tiago, A.V. Tiago, E.C.M. Pedri, E.S. Cardoso and A.A.B. Rossi
Hymenaea courbaril L. is a tropical tree species with economic and medicinal potential largely used in programs for the recovery of degraded areas. The use of molecular markers in genetic studies can help in the definition of forest restoration strategies. This study was conducted to analyze the genetic diversity among H. cour.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039706
- DOI:
- 10.4238/gmr16039706
Soybean genotype analysis for cyst nematode resistance
Authors: B.C.M. Juliatti, I.F. Beloti, L.C. Pena and F.C. Juliatti
Some species of soybean cultivars have the characteristic of resistance or alteration in survival skills, and perpetuation of nematodes (female index - FI), whose process is activated when the nematode parasitism starts and the development of new resistant cultivars is primordial to the preservation of plant productivity. The .. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039705
- DOI:
- 10.4238/gmr16039705
Farmer variety exchange along Amazonian rivers influences the genetic structure of manioc maintained in a regional Brazilian Gene Bank
Authors: S.B. Sousa, G.F. Silva, M.C. Dias, C.R. Clement and N.R. Sousa
Knowledge of agro-morphological and genetic variability of germplasm diversity is a prerequisite for its use in breeding. The aim of this study was to characterize the genetic diversity of the manioc (Manihot esculenta) Active Germplasm Bank (AGB) at Embrapa Amazônia Ocidental using microsatellite markers. We evaluated 4.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039690
- DOI:
- 10.4238/gmr16039690
QTLs of morpho-agronomic traits in the Jalo x Small White common bean population
Authors: D.A. Souza, M. Balestre, A.K.A. Pamplona, L.R. Pinheiro, F.C. Alves, D.R. Pereira and J.B. Santos
In this study, we aimed to estimate the relationship between some common bean traits using molecular markers and applying QTL mapping. We used a segregating population derived from a crossing between common bean cultivars, Jalo and Small White, in the Southern State of Minas Gerais. Of F2 plants, 190 F2:3 progenies were genera.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039686
- DOI:
- 10.4238/gmr16039686
Genetic variability in banana diploids and nonparametric statistics of fragments associated with natural fruit finger drop
Authors: M.A. Rodrigues, E.P. Amorim, C.F. Ferreira, C.A.S. Ledo and J.R.F. Santana
Natural fruit finger drop in bananas is one of the major concerns of producers as well as consumers. The aim of this study was to estimate the genetic diversity among 15 diploid bananas with different levels of resistance to finger drop (RFD) using SSR and ISSR (inter-simple sequence repeat) markers, and assess the possibility.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039554
- DOI:
- 10.4238/gmr16039554
Diversity and genetic structure of the native Brazil nut tree (Bertholletia excelsa Bonpl.) population
Authors: J.C. Cabral, A.B. Baldoni, H. Tonini, V.C.R. Azevedo, L.D. Giustina, A.V. Tiago and A.A.B. Rossi
The present study was carried out in a native Brazil nut tree population (Bertholletia excelsa Bonpl., Lecythidaceae) to assess its genetic diversity and structure. Ten microsatellite markers were used to genotype 198 adult trees (B. excelsa). The population presented high genetic diversity and inbreeding absence rates. The em.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039702
- DOI:
- 10.4238/gmr16039702
Genetic variability of a Brazilian Capsicum frutescens germplasm collection using morphological characteristics and SSR markers
Authors: S.I.C. Carvalho, L.B. Bianchetti, C.F. Ragassi, C.S.C. Ribeiro, F.J.B. Reifschneider, G.S.C. Buso and F.G. Faleiro
Characterization studies provide essential information for the conservation and use of germplasm in plant breeding programs. In this study, 103 Capsicum frutescens L. accessions from the Active Germplasm Bank of Embrapa Hortaliças, representative of all five Brazilian geographic regions, were characterized based on morp.. Read More»
- Genet. Mol. Res. 16(3):
- gmr16039689
- DOI:
- 10.4238/gmr16039689