J.B. Santos

QTLs of morpho-agronomic traits in the Jalo x Small White common bean population

• D.A. Souza
• M. Balestre
• A.K.A. Pamplona
• L.R. Pinheiro
• F.C. Alves
• D.R. Pereira
• 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 generated. Phenotypic measures related to the .. Read More»

Genet. Mol. Res. 16(3): gmr16039686

DOI: 10.4238/gmr16039686

Analysis of genetic diversity of Laeliinae (Orchidaceae) in the State of Sergipe using ISSR markers

M.F. Arrigoni-Blank, M.S. Santos, A.F. Blank, A.R.C. Rabbani, R. Silva-Mann, J.B. Santos, A.S. Costa and T.S.A. Menezes

The Orchidaceae represent one of the largest and most diverse families on the planet. However, this family is constantly threatened by predators and by the advancement of urban centers over its natural habitats. The objective of this study was to use inter-simple sequence repeat markers to evaluate the genetic diversity between orchid accessions of the Laeliinae sub.. Read More»

Genet. Mol. Res. 15(2): gmr.15027997

DOI: 10.4238/gmr.15027997

White mold resistance-associated quantitative trait loci in the Jalo x Small White common bean population

D.A. Souza, M. Balestre, A.K.A. Pamplona, M.E. Leite, J.A. Dias and J.B. Santos

We aimed to identify simple sequence repeat (SSR) markers linked to quantitative trait loci (QTLs) associated with white mold resistance in a segregating population derived from a cross between common bean cultivars Jalo and Small White, in the Southern State of Minas Gerais. Parents were crossed to obtain the F2 generation of 190 plants. From these, F2:3 and F2:4 progenies were obtained for ph.. Read More»

Genet. Mol. Res. 15(3): gmr.15038724

DOI: 10.4238/gmr.15038724

Genetic control of the resistance of common beans to white mold using the reaction to oxalic acid

R.P. Antonio, J.B. Santos, T.P. Souza and F.F. Carneiro

The use of genetically resistant cultivars is the best method to reduce losses caused by white mold (Sclerotinia sclerotiorum (Lib.) de Bary). As the best known resistance sources are not adapted, the genetic control of white mold in the common bean must be understood to guide breeding more efficiently. The objective of the present study was to identify the genetic .. Read More»

Genet. Mol. Res. 7(3): vol7-3gmr466

DOI: 10.4238/vol7-3gmr466

Expression and validation of PvPGIP genes for resistance to white mold (Sclerotinia sclerotiorum) in common beans (Phaseolus vulgaris L.)

R.C.C. Vasconcellos, T.F.C. Lima, C.N. Fernandes-Brum, A. Chalfun-Junior and J.B. Santos

The interaction between polygalacturonase-inhibiting proteins (PGIPs), produced by plants, and endopolygalacturonases (PGs), produced by fungi, limits the destructive potential of PGs and can trigger plant defense responses. This study aimed to i) investigate variation in the expression of different common bean (Phaseolus vulgaris L.) genotypes and its relationship with resistance to white mold.. Read More»

Genet. Mol. Res. 15(3): gmr.15038269

DOI: 10.4238/gmr.15038269

A new method of QTL identification for undersaturated maps

A.K.A. Pamplona, M. Balestre, L.A.C. Lara, J.B. Santos and J.S.S. Bueno Filho

In many species, low levels of polymorphism prevent the assembly of linkage maps that are used to identify genetic markers related to the expression of quantitative trait loci (QTLs). This study compared two methods of locating QTLs in association studies that do not require a previous estimation of linkage maps. Method I (MI) was a Bayesian multiple marker regression and Method II (MII) combin.. Read More»

Genet. Mol. Res. 14(3): http://dx.doi.org/2015.September.25.13

DOI: http://dx.doi.org/10.4238/2015.September.25.13

Identification of QTLs of resistance to white mold in common bean from multiple markers by using Bayesian analysis

L.A.C. Lara, J.B. Santos, M. Balestre, I.A. Lima, A.K.A. Pamplona,J.S. Veloso and P.H. Silva

In this study, we identified simple sequence repeat, ampli­fied fragment length polymorphism, and sequence-related amplified poly­morphism markers linked to quantitative trait loci (QTLs) for resistance to white mold disease in common bean progenies derived from a cross between lines CNFC 9506 and RP-2, evaluated using the oxalic acid test and using Bayesian analysis. DNA was extracted .. Read More»

Genet. Mol. Res. 14(1): 2015.February.6.16

DOI: 10.4238/2015.February.6.16

Identification of Glomerella cingulata f. sp phaseoli recombinants by RAPD markers

O.A. Camargo Junior, E.A. Souza, M.C. Mendes-Costa, J.B. Santos, M.A. Soares

We examined the capacity of strains of Glomerella cin-gulata f. sp phaseoli fungus (Colletotrichum lindemuthianum sexual stage) to form recombinants, using random amplified polymorphic DNA (RAPD). Crosses of all possible combinations between strains 40, 42, 20, 21, 22, 23, 24, 25, and 26 were made on Petri dishes using M3 culture medium. The 42 x 21 cross produced t.. Read More»

Genet. Mol. Res. 6(3):

Reaction of common bean lines and aggressiveness of Sclerotinia sclerotiorum isolates

P.H. Silva1, J.B. Santos2, I.A. Lima2, L.A.C. Lara and F.C. Alves

The aims of this study were to evaluate the reaction of common bean lines to white mold, the aggressiveness of different Sclerotinia sclerotiorum isolates from various common bean production areas in Brazil, and comparison of the diallel and GGE (genotype main effect plus genotype-by-environment interaction) biplot analysis procedures via study of the line-by-isolate interaction. Eleven common .. Read More»

Genet. Mol. Res. 13(4):