Research Article

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Biofortification; Brazil; cluster analysis; Genetic variation; Genotype; Minerals; Nutritive Value; Phaseolus; Phenotype; Plant breeding; seeds

The development of common bean cultivars with high technological quality that are biofortified with minerals, is required to meet the demand for food with health benefits. The objectives of this study were to evaluate whether common bean genotypes differ in terms of technological and mineral biofortification traits, to study the correlations between these characters, to analyze the genetic ... more

deM. Steckling; N.D. Ribeiro; F.D. Arns; H.C. Mezzomo; M.T.D.F. Possobom
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Analysis of variance; Bertholletia; Dimensional Measurement Accuracy; Fruit; Genetic variation; Genotype; Phenotype; Plant breeding; Principal component analysis; Quantitative Trait, Heritable

Repeatability studies on fruit species are of great importance to identify the minimum number of measurements necessary to accurately select superior genotypes. This study aimed to identify the most efficient method to estimate the repeatability coefficient (r) and predict the minimum number of measurements needed for a more accurate evaluation of Brazil nut tree (Bertholletia excelsa) ... more

A.B. Baldoni; H. Tonini; F.D. Tardin; S.C.C. Botelho; P.E. Teodoro
02/23/2017
Capsicum; Cytoplasm; Fertility; Flowers; Genes, Plant; Genetic markers; Genotype; Hybridization, Genetic; Meristem; Mutation; Phenotype; Plant breeding; Plant Infertility; Reproducibility of Results; seeds

Cytoplasmic male sterility (CMS) in pepper is a better way to produce hybrid seeds compared to manual production. We used the two sequence characterized amplified region (SCAR) markers (CRF-SCAR and CMS-SCAR) in CMS pepper, to identify the genotype. We assembled two CMS yellow bud mutants (YBM; YBM12-A and YBM12-B). This mutation in leaf color is controlled by a single dominant nuclear gene. ... more

G.S. Sun; Z.L. Dai; P.W. Bosland; Q. Wang; C.Q. Sun; Z.C. Zhang; Z.H. Ma
03/30/2017
Agriculture; Brazil; cluster analysis; Crop Production; Edible Grain; Genetic Drift; Genetic variation; Genotype; Phaseolus; Phenotype; seeds

Evaluating genetic diversity among genotypes is important for providing parameters for the identification of superior genotypes, because the choice of parents that form segregating populations is crucial. Our objectives were to i) evaluate agronomic performance; ii) compare clustering methods; iii) ascertain the relative contributions of the variables evaluated; and iv) identify the most ... more

F.A. da Silva; A.M. Corrêa; P.E. Teodoro; K.V. Lopes; C.C.G. Corrêa
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Flowers; Genes, Dominant; Genetic variation; Phaseolus; Plant breeding; Quantitative trait loci; Quantitative Trait, Heritable; seeds

This article aimed to study the genetic control of some flowers and pod set of common bean and to verify if its estimate varies with environmental conditions and gene pool. A complete diallel was used among six lines, but no reciprocal ones. The treatments were evaluated in three harvests/generations - F, F, and F - in 2015/2016, in a randomized complete block design with four replications. ... more

E.S. Martins; R.A.Pinto Júnior; A.F.B. Abreu; M.A.P. Ramalho
02/23/2017
cluster analysis; Fruit; Genetic variation; Genotype; Hybridization, Genetic; Microsatellite instability; Microsatellite Repeats; Musa; Mutation; Plant breeding; Reproducibility of Results; Species Specificity

Banana (Musa spp) is a fruit species frequently cultivated and consumed worldwide. Molecular markers are important for estimating genetic diversity in germplasm and between genotypes in breeding programs. The objective of this study was to analyze the genetic diversity of 21 banana genotypes (FHIA 23, PA42-44, Maçã, Pacovan Ken, Bucaneiro, YB42-47, Grand Naine, Tropical, FHIA 18, PA94-01, YB42 ... more

A.V.C. Silva; A.L.S. Nascimento; M.F. Vitória; A.R.C. Rabbani; A.N.R. Soares; A.S. Lédo
04/13/2017
Fruit; Genetic variation; Genotype; Lycopersicon esculentum; Plant breeding; Quantitative Trait, Heritable

The tomato is the second most produced vegetable in the world, with significant participation in the human diet. In addition, the production of tomatoes generates jobs and family income. The availability of improved cultivars that provide greater profitability to the producer and satisfactorily meets the needs of the fresh fruit market and the processing industry becomes imperative due to its ... more

J.V.M. Peixoto; deM.S. Neto; L.F.C. Campos; deS. Dourado; A.P.O. Nogueira; D.R. Nascimento
05/31/2017
Analysis of variance; Annona; Data Interpretation, Statistical; Fruit; Genetic variation; Phenotype; Plant breeding; Quantitative Trait, Heritable

Repeatability studies on fruit species are of great importance to identify the minimum number of measurements necessary to accurately select superior genotypes. This study aimed to identify the most efficient method to estimate the repeatability coefficient (r) and predict the minimum number of measurements needed for a more accurate evaluation of soursop (Annona muricata L.) genotypes based ... more

C.F.B. Sánchez; P.E. Teodoro; S. Londoño; L.A. Silva; L.A. Peixoto; L.L. Bhering
03/22/2017
Chromosomes, Plant; Colchicine; Genes, Plant; Genotype; Haploidy; Inflorescence; Plant breeding; seeds; Zea mays

Doubling method is the technical barriers in maize haploid breeding. It was very important to establish the independent intellectual property rights for doubling method. In this experiment, the maize haploid inducer, TG15, was used for producing maternal haploids. Also, haploids were obtained from two kinds of maternal genotypes involved in the experiment, including high-oil type and common ... more

L. Jiang; X.Y. Yang; X.Y. Li; P.K. Deng; G.X. Jing; X.Q. Wang; Z. Xing; R.G. Zhao
04/13/2017
Genetic variation; Manihot; Phenotype; seeds; Starch

Demand for the development of cassava varieties with different native starches has guided the search for these characteristics in the germplasm of Manihot esculenta Crantz. Therefore, the objective of this study was to estimate the genetic diversity of cassava accessions for root and starch granule characteristics to guide the future industrial application of this species. Starches from 56 ... more

L.M. Vasconcelos; A.C. Brito; C.D. Carmo; P.H.G.A. Oliveira; E.J. Oliveira

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