Recent Updates on Salinity Stress in Rice: From Physiological to Molecular Responses

Introgression the <i>SalTol</i> QTL into the Elite Rice Variety of Russia by Marker-Assisted Selection<br>

“…Determining concentrations of sodium and potassium in root and shoot revealed shoot K+/Na+ homeostasis in these lines, that is the evidence of working Saltol fragment. The data presented here is similar to the results of other studies (Mardani et al, 2014;Negrão et al, 2011).…”

“…It was previously shown that the salt tolerance of rice is the genetics of quantitative traits, which is controlled by multiple genes (Negrão et al, 2011;Mekawy et al, 2011). It had mapped more than 70 QTLs which were linked to the salt tolerance and two salt tolerance genes of rice (SKC1 and DST) have already been cloned (Hu et al, 2012;Cotsaftis et al, 2012;Kumar et al, 2015).…”

Abscisic Acid- and Stress-Induced Highly Proline-Rich Glycoproteins Regulate Root Growth in Rice

“…LEA proteins are thought to protect cells by acting as hydration buffers, ion sequestration agents, or molecular chaperones (Dure, 1993;Close, 1996;Ingram and Bartels, 1996;Wise, 2003;Olvera-Carrillo et al, 2011). Other important transcription factors, such as APETALA2/ETHYLENE-RESPONSIVE ELEMENT BINDING FACTOR and the NAC family, have been shown to activate stress-related genes involved in the cell cycle and metabolic and physiological balance to maintain homeostasis under stress (Negrao et al, 2011;Mizoi et al, 2012;Nakashima et al, 2012). Overexpression of OsNAC5 and OsNAC6 in rice (Oryza sativa) increases plant tolerance to drought and salinity conditions (Nakashima et al, 2007;Takasaki et al, 2010).…”

“…Rice production yield is directly proportional to the development of the panicle and spikelet during reproductive stages. However, plants in the reproductive phase are sensitive to environmental stress, such as drought and high salinity (Negrao et al, 2011). In order to identify genes specifically regulated by ABA in rice roots, we performed microarray-based transcriptomic analysis and focused on the study of a family of ABA-induced root-specific genes encoding highly Pro-rich proteins with unknown function, REPETITIVE PROLINE-RICH PROTEIN (RePRP).…”

Tilling and Eco-Tilling - A Reverse Genetic Approach for Crop Improvement

“…This technique is now applied to rice, maize, lotus, poplar , Brassica, zebrafish, Drosophila, Caenorhabditis and human , indicating its broad applicability. The implication of ECO-TILLING to identify potential novel functional alleles in the known and candidate genes/transcription factors (TFs) regulating qualitative and quantitative agronomic traits by association/genetic mapping is well-documented for expediting the genetic enhancement of crop plants (Mejlhede et al, 2006;Barkley and Wang, 2008;Ibiza et al, 2010;Negrao et al, 2011;Yu et al, 2012;Frerichmann et al, 2013). ECO-TILLING usually employs a mismatchspecific CEL-I nuclease to cleave the PCR amplified fragments at the site of heteroduplex formation involving nucleotide (SNP-allelic) polymorphism.…”