Research Report

Related GMR Articles

2/23/2017
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
2/23/2017
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
2/23/2017
Analysis of variance; Anthocyanins; China; Chromatography, High Pressure Liquid; cluster analysis; Color; Conservation of Natural Resources; Endangered species; Flowers; Genetic markers; Genetic variation; Magnolia; Microsatellite Repeats; Phenotype; Phylogeny; Pigmentation; Plant breeding; Species Specificity

A combination of phenotypic characterization and molecular markers may provide reliable information on new plant varieties and elucidate the conservation status of rare species. Five newly developed Magnolia wufengensis cultivars, an endangered plant species endemic to Hubei Province, China, possess more distinctive phenotypes than common Magnolia cultivars. With reference to a wild species ... more

L. Wang; A.H. Xiao; L.Y. Ma; F.J. Chen; Z.Y. Sang; J. Duan
3/08/2017
Chimera; Fragaria; Fruit; Genotype; Phenotype; Plant breeding; Polyploidy; Selective breeding

The strawberry (Fragaria x ananassa Dutch.), is the only vegetable belonging to the rosacea family. All strawberry species have now emerged from wild species and belong to the genus Fragaria, being that this genus presents more than 45 described species, and only 11 are considered natural species. Due to the octoploid nature of strawberry and its variability after hybridization, selecting one ... more

S.D. Vieira; D.C. de Souza; I.A. Martins; G.H.M.R. Ribeiro; L.V. Resende; A.K.L. Ferraz; A.G. Galvão; J.T.V. de Resende
3/08/2017
Brassica; China; Chromosome Mapping; Chromosomes, Plant; DNA fingerprinting; DNA, Plant; Genetic markers; Genotype; Microsatellite Repeats; Plant breeding; Polymorphism, Genetic

Chinese cabbage is an important cruciferous vegetable in China. The differences in the morphology and other characteristics of the different varieties of Chinese cabbage are generally caused by their different genes. Using the simple sequence repeat (SSR) DNA molecular markers is an effective way to identify different genotypes. The identification of a genetic relationship is a key point in ... more

X.X. Zhang; X.B. Tang; Y. Liu; Y.W. Zhang
3/15/2017
Genes, Plant; Genetic variation; Phenotype; Plant breeding; Saccharum; Selection, Genetic; Sucrose

Sugarcane breeding programs have been adapting to a new market demand: aside from high sucrose yield per hectare, the sector needs new cultivars with higher fiber percentages. The selection of sugarcane clones based on phenotype alone is a complex task. The selected clones should display high performance in a series of yield- and quality-related traits. Selection indices can provide ... more

A.A.C. de Azeredo; L.L. Bhering; B.P. Brasileiro; C.D. Cruz; L.C.I. Silveira; R.A. Oliveira; J.C.Bespalho Filho; E. Daros
3/22/2017
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
3/22/2017
Alleles; Brazil; Fruit; Genetic markers; Genetic variation; Microsatellite Repeats; Myrtaceae; Phylogeny; Plant breeding; Polymorphism, Genetic; Trees; Vitamin A

Myrciaria dubia (camu-camu) is an Amazon tree that produces a tart fruit with high vitamin C content. It is probably the fruit with the highest vitamin C content among all Brazilian fruit crops and it can be used to supplement daily vitamin C dose. This property has attracted the attention of consumers and, consequently, encouraged fruit farmers to produce it. In order to identify and select ... more

C.F. Nunes; T.A. Setotaw; M. Pasqual; E.A. Chagas; E.G. Santos; D.N. Santos; C.G.B. Lima; G.M.A. Cançado
3/22/2017
Computers; Fruit; Genetic variation; Genotype; Image Processing, Computer-Assisted; Phenotype; Plant breeding; Psidium; seeds

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.) families. The SAS Mini ... more

W. Krause; A.P. Viana; N.R. Cavalcante; M. Ambrósio; E.A. Santos; H.D. Vieira
3/22/2017
Brazil; Crops, Agricultural; Crosses, Genetic; Genetic variation; Phaseolus; Plant breeding; Selection, Genetic

Common bean producers in Brazil tend to grow plants as upright as possible. Because the control of this trait involves a large number of genes, recurrent selection (RS) is the best approach for successful plant improvement. Because plant architecture (PA) is evaluated using scores and usually has high heritability, RS for PA is performed through visual selection in generation S. The aim of the ... more

L.A. Pereira; A.F.B. Abreu; I.C.Vieira Júnior; L.P.M. Pires; M.A.P. Ramalho

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