Research Article

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J.J. Nuvunga; L.A. Oliveira; A.K.A. Pamplona; C.P. Silva; R.R. Lima; M. Balestre
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The Amazon harbors numerous bitter cassava genotypes, of which only a few have been studied agronomically. We evaluated the genotype x environment interaction (GxE) displayed by seven traditional varieties found in the Brazilian municipalities of Lábrea-AM, 07°14’83.5”S, 64°44’70”W, (Cobiçada, Minerva, and Flecha-Amarela) and Manaus-AM, 02º59’00”S, 60º01'00”W, ( ... more

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The efficiency of a selection index generally depends on the quality of the variance matrixes, which demands controlled experiments. Using Artificial Neural Networks (ANNs) trained from a selection index is advantageous for selecting genotypes since an ANN has the capacity to classify genotypes in an automated way. We propose the use of ANNs for the selection of ... more

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Adaptability; Cattle; Heritability; Reproductive traits

The Colombian Creole bovine breeds Blanco Orejinegro (BON) and Sanmartinero (SM) are the most important of the Creole breeds in Colombia because they are the most numerous, the most widely used in their pure form or in crosses with foreign breeds, and because they are dual-purpose producers of milk and meat. We estimated heritability for adaptability (coefficient ... more

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AMMI; Anthracnose; Fusarium oxysporum f. sp. phaseoli; Phaseolus vulgaris; Stability

Fusarium wilt is a serious soil disease affecting common bean cultivation, especially crops under a central pivot irrigation system. Our objective was to identify bean lines that combine resistance to Fusarium wilt in the field with other desirable traits. Twenty-eight randomized block trials with three replicates were conducted  in the rainy, winter, and dry ... more

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Bud development; Gossypium hirsutum; Reverse-transcription-polymerase chain reaction; Semi-quantitative expression

Gene sequences previously identified in Arabidopsis buds were used as references in order to estimate temporal and tissue expression in buds, leaves, stem, and root tissues in cotton plants. Buds were evaluated during 3 phases: 2-8, 10-12, and 14-20 mm. Primers were designed for the ARF6, ATFY, and SEUSS genes for use in semi-quantitative reverse ... more

V.G.L. Batista; M.P.N. Pinheiro; P.A.Melo Filho; R.C. Santos; L.M. Lima
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Cell wall changes; Down-regulation; Gossypium hirsutum; Transgenic Arabidopsis; UDP-glucuronate decarboxylase

UDP-glucuronate decarboxylase (UDP-xylose synthase; UXS, EC 4.1.1.35) is an essential enzyme of the non-cellulosic polysaccharide biosynthetic pathway. In the present study, using transient expression of fluorescently labeled Gossypium hirsutum UXS (GhUXS3) protein in onion epidermal cells, we observed that this protein was distributed in the cytoplasm. The GhUXS3 cDNA ... more

D.M. Zhang; Y.X. Pan; Y. Zhang; Z.K. Li; L.Q. Wu; H.W. Liu; G.Y. Zhang; X.F. Wang; Z.Y. Ma; D.M. Zhang; Y.X. Pan; Y. Zhang; Z.K. Li; L.Q. Wu; H.W. Liu; G.Y. Zhang; X.F. Wang; Z.Y. Ma
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AMMI; GE interaction; GGE biplot; Gossypium hirsutum

Seed cotton yield is a trait governed by multiple genes that cause changes in the performance of genotypes depending on the cultivation environment. Breeding programs examine the genotype x environment interaction (GE) using precise statistical methods, such as AMMI (additive main effects and multiplicative interaction) and GGE biplot (genotype main effects + genotype x environment ... more

F.J.C. Farias; L.P. Carvalho; J.L.Silva Filho; P.E. Teodoro; F.J.C. Farias; L.P. Carvalho; J.L.Silva Filho; P.E. Teodoro
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Cotton Seed Yield; Gossypium hirsutum; Indirect selection

The cotton crop has notable importance for Brazilian and worldwide economy. Relationships knowledge among characters allows developing alternatives that increase the genetic progress with simultaneous selection of several traits. The use of correlation estimates for use in indirect selection helps the breeder in the selection of characters and facilitates progress ... more

M.C. Reis; D.B.O. Cardoso; E.G.Silva Júnior; B.C. Gomes; L.T.G. Pereira; D.A. Gomes; L.B. Sousa

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