Oryza Sativa
Variation of the OsGI intron and its phenotypic associations in Oryza rufipogon Griff. and Oryza sativa L.
Authors: Y. Dong, Z. Chen, X. Pei, F. Wang, Q. Yuan, H. Wu, S. Jia and Y. Peng
We analyzed intron 9 of the OsGI gene in Oryza rufipogon and Oryza sativa in order to investigate evolutionary relationships in rice and the relationship between intron variation and phenotype. OsGI-9 was cloned in 38 O. rufipogon populations and in 139 O. sativa cultivars and the phylogeny was reconstructed. Seed cold tolerance and dormancy were quantifi.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.July.30.4
- DOI:
- 10.4238/2013.July.30.4
Identification of a new locus conferring antixenosis to the brown planthopper in rice cultivar Swarnalata (Oryza sativa L.)
Authors: Y.F. Qiu, L. Cheng, F. Liu and R.B. Li
The brown planthopper [Nilaparvata lugens (Stål); BPH] has caused severe damage to rice production. The identification of resistance genes and the development of BPH-resistant varieties are economical and effective ways to manage this pest. Using an F2 population from a cross between the Indica cultivars 93-11 and Swarnalata, we mapped the Qbph-8 lo.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.August.29.4
- DOI:
- 10.4238/2013.August.29.4
Analysis of QTLs for panicle exsertion and its relationship with yield and yield-related traits in rice (Oryza sativa L.)
Authors: C.F. Zhao, T. Chen*, Q.Y. Zhao, L.H. Zhou, L. Zhao, Y.D. Zhang, Z. Zhu, S. Yao and C.L. Wang
Panicle exsertion (PE) is an important morphological trait that is closely associated with spikelet fertility and grain yield. To understand the genetic basis of PE and its relationships with yield and yield-related traits, a recombinant inbred population consisting of 240 lines derived from a cross between an Indica cultivar .. Read More»
- Genet. Mol. Res. 15(2):
- gmr.15027423
- DOI:
- 10.4238/gmr.15027423
A simplified genomic DNA extraction protocol for pre-germination genotyping in rice
Authors: Y.B. Duan, F.L. Zhao, H.D. Chen, H. Li, D.H. Ni, P.C. Wei, W. Sheng, J.T. Teng, A.M. Zhang and J.P. Xue
Genotyping is a critical step for molecular markerassisted selection in rice. Rice genomic DNA samples for genotyping are typically isolated from living tissues such as seedlings. This requires the germination of all candidate seeds and extraction of DNA from the seedlings. Currently, an ideal individual is selected from a very large number of plants, whi.. Read More»
- Genet. Mol. Res. 14(2):
- 2015.June.11.12
- DOI:
- 10.4238/2015.June.11.12
Expression profile of rice Hsp genes under anoxic stress
Authors: L.M. Mertz-Henning, C. Pegoraro, L.C. Maia, E. Venske, C.V. Rombaldi and A. Costa de Oliveira
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 opti.. Read More»
- Genet. Mol. Res. 15(2):
- gmr.15027954
- DOI:
- 10.4238/gmr.15027954
Genetic diversity in mutated and non-mutated rice varieties
Authors: M. Naeem, F. Ghouri, M.Q. Shahid, M. Iqbal, F. S. Baloch, L. Chen, S. Allah, M. Babar and M. Rana
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 < 0.05) genotypic and irradiati.. Read More»
- Genet. Mol. Res. 14(4):
- 2015.December.16.11
- DOI:
- 10.4238/2015.December.16.11
Resistance of upland-rice lines to root-knot nematode, Meloidogyne incognita
Authors: D.C.T. Souza, F.B.S. Botelho, C.S. Rodrigues, I.V. Furtini, E.C. Smiderle, D.L. de Matos and A.T. Bruzi
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, .. Read More»
- Genet. Mol. Res. 14(4):
- 2015.December.21.7
- DOI:
- 10.4238/2015.December.21.7