Research Article

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Capsicum; Fruit; Genetic markers; Genotype; Microsatellite Repeats; Polymorphism, Genetic; Quantitative Trait, Heritable

Capsicum peppers are native to the Americas, with Brazil being a significant diversity center. Capsicum baccatum accessions at Instituto Federal (IF) Goiano represent a portion of the species genetic resources from central Brazil. We aimed to characterize a C. baccatum working collection comprising 27 accessions and 3 commercial cultivars using morphological traits and molecular markers to ... more

A.L.A. Martinez; J.S.P. Araújo; C.F. Ragassi; G.S.C. Buso; F.J.B. Reifschneider
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Capsicum; Genotype; Plant breeding; Plant Immunity; Plant Viruses; Polymorphism, Genetic; Quantitative Trait, Heritable; Seed Bank

Germplasm banks are essential as sources of genetic variability for plant breeding programs. To characterize a Brazilian Capsicum frutescens collection, 21 malagueta and 5 Tabasco hot pepper accessions were evaluated under field and greenhouse conditions regarding morphological and molecular traits, as well as resistance to viruses. Morphological characterization was performed using 53 IPGRI ( ... more

M.F. Lima; S.I.C. Carvalho; C.F. Ragassi; L.B. Bianchetti; F.G. Faleiro; F.J.B. Reifschneider
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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
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Capsicum; Fruit; Gene-Environment Interaction; Hybridization, Genetic; Quantitative Trait, Heritable

In Brazil, cultivation of hybrid plants comprise near 40% of the area grown with vegetables. For Capsicum, hybrids of bell and chili peppers have already exceeded 50% and over 25% of all are commercialized seeds. This study aimed to evaluate new pepper hybrids in two environments, Cáceres, MT, and Campos dos Goytacazes, RJ, Brazil. Nine experimental hybrids of C. baccatum var. pendulum were ... more

N.S.S. Cabral; A.M. Medeiros; L.G. Neves; C.P. Sudré; S. Pimenta; V.J. Coelho; M.E. Serafim; R. Rodrigues
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Ascomycota; Capsicum; Disease resistance; Fruit; Genotype; Models, Genetic; Plant breeding; Plant Diseases; Plant Leaves; Potyvirus; Quantitative Trait, Heritable; Selective breeding; Xanthomonas

This study aimed to identify Capsicum genotypes with resistance to bacterial spot (BS), anthracnose and Pepper yellow mosaic virus (PepYMV). Fifty-four genotypes of Capsicum spp were evaluated. Resistance reaction against BS was evaluated using three replicates, testing hypersensitivity and quantitative resistance in leaves. After evaluation, inoculated leaves were detached from the plants, ... more

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2017 May 25
Genotype; Lamiales; Microsatellite Repeats; Polymorphism, Genetic; Quantitative Trait, Heritable

This study aimed to evaluate the genetic variability of the teak germplasm bank, using morphological traits and inter-simple sequence repeat molecular markers. Thirty clones were evaluated in a randomized complete block design with three replicates, and each plot was composed of three plants. A joint analysis of quantitative and qualitative variables was performed using the Gower algorithm. ... more

A.M. Chimello; J.G. Jesus; P.E. Teodoro; A.A.B. Rossi; K.L. Araújo; T.N. Marostega; L.G. Neves; M.A.A. Barelli
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Fabaceae; Genotype; Microsatellite Repeats; Plant breeding; Polymorphism, Genetic; Quantitative Trait, Heritable

Desmanthus is a genus of forage legumes with high nutritional value, productive potential, and ability to obtain nitrogen in association with diazotrophic bacteria. The use of accurate techniques for genotype identification and characterization is essential for breeding programs. Morphological markers are widely used to know the genetic diversity and the molecular markers are fundamental in ... more

J.C. Costa; G.G.M. Fracetto; F.J.C. Fracetto; M.V.F. Santos; M.A.Lira Júnior
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Jatropha; Microsatellite Repeats; Plant breeding; Polymorphism, Genetic; Seed Bank

Jatropha curcas L. is a highly promising oilseed for sustainable production of biofuels and bio-kerosene due to its high oil content and excellent quality. However, it is a perennial and incipiently domesticated species with none stable cultivar created until now despite genetic breeding programs in progress in several countries. Knowledge of the genetic structure and diversity of the species ... more

B.G. Díaz; D.M. Argollo; M.C. Franco; S.M. Nucci; W.J. Siqueira; D.M. de Laat; C.A. Colombo
2017 Jun 29
Fungi; Microsatellite Repeats; Plant breeding; Plant Immunity; Polymorphism, Genetic; Quantitative Trait, Heritable; Zea mays

Knowledge of genetic diversity among genotypes and relationships among elite lines is of great importance for the development of breeding programs. Therefore, the objective of this study was to evaluate genetic variability based on the morphoagronomic and molecular characterization of 18 elite popcorn (Zea mays var. everta) lines to be used by Universidade Estadual de Maringá breeding programs ... more

J.F.Dos Santos; C.A. Mangolin; M.F.P.S. Machado; C.A. Scapim; W. Giordani; L.S.A. Gonçalves
2017 Jun 29
Actins; Capsicum; Colletotrichum; Fungal Proteins; Glyceraldehyde-3-Phosphate Dehydrogenase (Phosphorylating); Microsatellite Repeats; Phylogeny; Polymorphism, Genetic; Superoxide dismutase

Chili pepper (Capsicum chinense) is a great economic important culture on the State of Amazonas, and it represents, approximately, a production of 1.9 thousand tons per year. It is one of the hosts of Colletotrichum genus in the North region of Brazil. The aim of the study was to differentiate and to identify isolates of Colletotrichum collected from C. chinense in Amazon. Molecular ... more

C.V.S. de Oliveira; K.S. Matos; D.M.C. de Albuquerque; R.E. Hanada; G.F. da Silva