Research Article

Related GMR Articles

Oryza sativa; Reproduction factor; Resistant cultivars

Despite the benefits of crop rotation, occurrence of nematodes is a common problem for almost all crops within the Cerrado biome, especially for rice. The use of resistant cultivars is one of the main methods for control of nematodes. Thus, the present study aimed to evaluate the reaction of 36 upland-rice lines, with desirable agronomic characteristics, according to their resistance to root- ... more

D.C.T. Souza; F.B.S. Botelho; C.S. Rodrigues; I.V. Furtini; E.C. Smiderle; D.L. de Matos; A.T. Bruzi
Genetic diversity; Genetic variation; Mutagenesis; Mutation breeding; Oryza sativa

We studied the genetic variability due to mutation induced by γ-rays (10, 15, and 20 Kr) on various traits of twelve rice genotypes. Mutated and non-mutated seeds were sown in the field between July 2013 and 2014 using a split plot design. Yield and yield-related trait data was recorded, which showed significant (P

M. Naeem; F. Ghouri; M.Q. Shahid; M. Iqbal; F.S. Baloch; L. Chen; S. Allah; M. Babar; M. Rana
Flooding; Heat-shock proteins; Oryza sativa

Although flooding is one of the most important environmental stresses worldwide, not all plant species are intolerant to its effects. Species from semi-aquatic environments, such as rice, have the capacity to cope with flooding stress. Heat-shock proteins (Hsps) are thought to contribute to cellular homeostasis under both optimal and adverse growth conditions. Studies of gene expression ... more

L.M. Mertz-Henning; C. Pegoraro; L.C. Maia; E. Venske; C.V. Rombaldi; C. de Oliveira; L.M. Mertz-Henning; C. Pegoraro; L.C. Maia; E. Venske; C.V. Rombaldi; C. de Oliveira
Biochemical analysis; Microarray; Mutant; Oryza sativa; Salt tolerance

Salinity is a major environmental stress to plants. In this study, the ability of plants to tolerate salt was investigated by studying growth, physiological characteristics, and expression levels of genes related to the salt-stress response in the salt-tolerant rice mutant (Till-II-877), which was derived from γ-ray irradiation. Compared to plants grown under ... more

K.J. Lee; S.J. Kwon; J.E. Hwang; S.M. Han; I. Jung; J.B. Kim; H.I. Choi; J. Ryu; S.Y. Kang
Coexpression; Drought; Networks; Oryza sativa; RiceFrend

Plant tolerance to abiotic stresses, such as water deficit, is triggered by complex multicomponent signaling pathways. One of the plant responses to stress conditions is expression of a large number of genes whose products are involved in various adaptive functions. Transcription factors (TFs) are important regulators of gene expression, modulating the ... more

P.A. Auler; M.Ndo Amaral; T. Rossatto; I.L. Vighi; L.C. Benitez; L.C. da Maia; E.J.B. Braga
Biometry; Breeding program; Genetic Progress; Oryza sativa

Estimating the performance of a rice breeding program is possible by means of indexes such as the replacement rate, which quantifies the dynamism of the breeding program and provides the rate of included, excluded, maintained and renewed genotypes year after year. We evaluated the performance of the irrigated rice breeding program in the state of Minas Gerais, ... more

A.C.Silva Júnior; V.Q. Carneiro; I.G. Santos; W.G. Costa; R.D.S. Rosado; C.D. Cruz; P.C. Soares
Biometry; Breeding program; Interaction GxE; Oryza sativa

Rice (Oryza sativa) is crop that adapts well to diverse soil and climate conditions; breeding programs have generally been committed to identifying and selecting genotypes that are stable and have high productivity in various environments. In this sense, studies of adaptability and stability are of paramount importance to aid in the recommendation of ... more

A.C.Silva Júnior; V.Q. Carneiro; I.G. Santos; W.G. Costa; G.N. Silva; C.D. Cruz; P.C. Soares
Effector; Magnaporthe oryzae; Prokaryotic expression

The aim of the current study was to investigate the prokaryotic expression of the Magnaporthe oryzae effector genes BAS1 and BAS4 fused to the fluorescent protein mCherry. Based on previous polymorphic analysis of BAS1 and BAS4 in rice blast strains using PCR, blast strains containing the PCR products of BAS1 and BAS4 were selected ... more

Y.Q. Yang; H. Wang; M.L. Liang; J.L. Yan; L. Liu; C.Y. Li; J. Yang
Association analysis; Genetic diversity; Indica landrace; Magnaporthe oryzae; SSR

Rice blast caused by Magnaporthe oryzae is one of the most devastating rice diseases worldwide. To understand the genetic diversity of indica landrace accessions and identify simple sequence repeat (SSR) markers that are associated with blast resistance, a population of 276 indica landraces from across the world was constructed. This population was then used to ... more

Y.Y. Wu; J.B. He; A.H. Li; N.Y. Fang; W.W. He; L.L. Dang; G.Y. Zeng; J. Huang; Y.M. Bao; H.S. Zhang; Y.Y. Wu; J.B. He; A.H. Li; N.Y. Fang; W.W. He; L.L. Dang; G.Y. Zeng; J. Huang; Y.M. Bao; H.S. Zhang
Genetic diversity; Genic-SSRs; Nelumbo nucifera; Transcriptome

Nelumbo nucifera is an important economic vegetable and traditional medicine, but available genetic resources remain limited. Next generation sequencing has proven to be a rapid and effective means of identifying genic simple sequence repeat (genic-SSR) markers. This study developed genic-SSRs for N. nucifera using Illumina sequencing technology to assess diversity across ... more

X.F. Zheng; Y.N. You; Y. Diao; X.W. Zheng; K.Q. Xie; M.Q. Zhou; Z.L. Hu; Y.W. Wang