Research Article

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10/19/2015
Abiotic stress; Drought tolerance; Plant breeding; Sorghum bicolor

Sorghum grain yield can be significantly affected by climatic changes, especially drought and high temperature. The purpose of this study was to evaluate hybrids of grain sorghum grown under normal irrigation conditions or water stress in order to select those likely to be more tolerant of drought. Forty-nine hybrids were grown in a randomized block design experiment, with three ... more

C.B. Menezes; D.C. Saldanha; C.V. Santos; L.C. Andrade; M.P.Mingote Júlio; A.F. Portugal; F.D. Tardin
09/25/2018
diallel analysis; Genetic effects; Phaseolus vulgaris; Plant breeding

We examined the general and specific combining abilities of common bean cultivars and varieties and tested promising hybrid combinations for the development of productive strains. Two cultivars (IPR Uirapuru and IPR Campos Gerais) and five local varieties (BGU-1, BGU-7, BGU-13, BGU-25 and BGU-36) were planted in a full diallel cross. Treatments were assessed based ... more

V.P. da Silva; M.A.A. Barelli; J.P.E. Lira; M.J. Arruda; J.P. Poletine; L.G. Neves
10/16/2018
Abiotic stress; Acid soil; Anthocyanin; Gene expression; Northern blot

Phosphate (Pi) unavailability is a growth-limiting factor for plants. Under Pi-limited conditions, plants activate molecular mechanisms for better acquisition and utilization of this nutrient. In maize, changes in the expression pattern of several Pi starvation-induced genes, including the A1 coding for dihydroflavonol 4-reductase (DFR) involved in ... more

M.J.V. Vasconcelos; J.E.F. Figueiredo; K.G. Raghothama
12/17/2015
Abscisic acid; Drought tolerance; Medicago sativa L.; Molybdenum cofactor sulfurase

The stress phytohormone abscisic acid (ABA) plays pivotal roles in plants’ adaptive responses to adverse environments. Molybdenum cofactor sulfurases influence aldehyde oxidase activity and ABA biosynthesis. In this study, we isolated a novel EsMcsu1 gene encoding a molybdenum cofactor sulfurase from Eutrema salsugineum. EsMcus1 transcriptional patterns varied ... more

C. Zhou; Z.Y. Ma; L. Zhu; J.S. Guo; J. Zhu; J.F. Wang
12/15/2015
Bacterial artificial chromosome library; Drought tolerance; Gossypium tomentosum; SSR marker; Verticillium wilt resistance; Wild cotton

Gossypium tomentosum is a wild allotetraploid species with the (AD)5 genome. It is characterized by many useful traits including finer fiber fineness, drought tolerance, and Fusarium and Verticillium resistance. We constructed the first bacterial artificial chromosome library for Gossypium tomentosum. With high quality and broad coverage, ... more

F. Liu; Y.H. Wang; H.Y. Gao; C.Y. Wang; Z.L. Zhou; X.Y. Cai; X.X. Wang; Z.S. Zhang; K.B. Wang
12/07/2015
Cowpea; Drought tolerance; Multivariate analysis; Recurrent selection; Vigna unguiculata

Vigna unguiculata (L.) Walp (cowpea) is a food crop with high nutritional value that is cultivated throughout tropical and subtropical regions of the world. The main constraint on high productivity of cowpea is water deficit, caused by the long periods of drought that occur in these regions. The aim of the present study was to select elite cowpea genotypes with enhanced drought ... more

C.C. Sousa; K.J. Damasceno-Silva; E.A. Bastos; M.M. Rocha
08/05/2016
Drought tolerance; Genetic map; Gossypium; Quantitative trait loci; Simple sequence repeat markers

Cotton is one of the most important natural fiber crops in the world. Its growth and yield is greatly limited by drought. A quantitative trait locus (QTL) analysis was therefore conducted to investigate the genetic basis of drought tolerance in cotton (Gossypium spp) using 188 F2:3 lines developed from an inter-specific cross between a wild cotton species, G. ... more

J.Y. Zheng; G. Oluoch; M.K.Riaz Khan; X.X. Wang; X.Y. Cai; Z.L. Zhou; C.Y. Wang; Y.H. Wang; X.Y. Li; F. Liu; K.B. Wang; J.Y. Zheng; G. Oluoch; M.K.Riaz Khan; X.X. Wang; X.Y. Cai; Z.L. Zhou; C.Y. Wang; Y.H. Wang; X.Y. Li; F. Liu; K.B. Wang
09/22/2015
Complementarity method; Ethanol; Genotype x environment interaction; Multi-environment trial; Sorghum bicolor

Sweet sorghum has considerable potential for ethanol and energy production. The crop is adaptable and can be grown under a wide range of cultivation conditions in marginal areas; however, studies of phenotypic stability are lacking under tropical conditions. Various methods can be used to assess the stability of the crop. Some of these methods generate the same basic information, whereas ... more

U.J. de Figueiredo; J.A.R. Nunes; R.Ada C. Parrella; E.D. Souza; A.R. da Silva; B.M. Emygdio; J.R.A. Machado; F.D. Tardin
08/21/2015
Cultivars; Genetic diversity; Random amplified polymorphic DNA; Sorghum bicolor

The genetic diversity of Saudi locally growing sorghum (Sorghum bicolor) cultivars has not been thoroughly characterized. To understand the genomic patterns of diversification in Saudi sorghum cultivars (N = 7), random amplified polymorphic DNA (RAPD) was used as a rapid, inexpensive method for providing information regarding genomic variability below the species level. Six ... more

S.O. Bafeel
02/26/2016
Biofortification; Hierarchical cluster; Mahalanobis distance; Mixed models; Sorghum bicolor

The breeding of sorghum, Sorghum bicolor (L.) Moench, aimed at improving its nutritional quality, is of great interest, since it can be used as a highly nutritive alternative food source and can possibly be cultivated in regions with low rainfall. The objective of the present study was to evaluate the potential and genetic diversity of grain-sorghum hybrids for traits of ... more

J.E.Almeida Filho; F.D. Tardin; J.F.R. Guimarães; M.D.V. Resende; F.F. Silva; M.L. Simeone; C.B. Menezes; V.A.V. Queiroz; J.E.Almeida Filho; F.D. Tardin; J.F.R. Guimarães; M.D.V. Resende; F.F. Silva; M.L. Simeone; C.B. Menezes; V.A.V. Queiroz

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