- Information
- Symbol: ALK,SSIIa
- MSU: LOC_Os06g12450
- RAPdb: Os06g0229800
- Publication
- Genetic analysis of rice grain quality, 1999, TAG Theoretical and Applied Genetics.
- OsbZIP58, a basic leucine zipper transcription factor, regulates starch biosynthesis in rice endosperm, 2013, J Exp Bot.
- Double repression of soluble starch synthase genes SSIIa and SSIIIa in rice Oryza sativa L. uncovers interactive effects on the physicochemical properties of starch, 2011, Genome.
- Compensation and interaction between RISBZ1 and RPBF during grain filling in rice, 2009, Plant J.
- Association between nonsynonymous mutations of starch synthase IIa and starch quality in rice Oryza sativa, 2011, New Phytol.
- ALK, the key gene for gelatinization temperature, is a modifier gene for gel consistency in rice, 2011, J Integr Plant Biol.
- SNP in starch biosynthesis genes associated with nutritional and functional properties of rice, 2012, Sci Rep.
- Characteristics of Grain Physicochemical Properties and the Starch Structure in Rice Carrying a Mutated ALK/SSIIa Gene, 2020, J Agric Food Chem.
- Genomic Regions Involved in Differences in Eating and Cooking Quality Other than Wx and Alk Genes between indica and japonica Rice Cultivars, 2021, Rice (N Y).
- Genbank accession number
- Key message
- Starch synthase IIa (SsIIa) is a major candidate gene for starch quality variation
- To search for the variation in SsIIa that is responsible for starch quality variation in rice, we sequenced the SsIIa exon 8 region and measured starch quality as starch disintegration in alkali for 289 accessions of cultivated rice and 57 accessions of its wild ancestor, Oryza rufipogon
- Furthermore, OsbZIP58 was shown to bind directly to the promoters of six starch-synthesizing genes, OsAGPL3, Wx, OsSSIIa, SBE1, OsBEIIb, and ISA2, and to regulate their expression
- Variation in SsIIa enzyme activity is associated with the cohesiveness of rice grains when cooked, and our findings are consistent with selection for more cohesive grains during the domestication of tropical japonica rice
- To study the potential functional interactions of SS genes, we generated SSIIa/SSIIIa double repression lines whose kernels displayed a chalky kernel appearance and had increased amylose levels, increased pasting temperatures, and decreased viscosities
- The nonadditive nature of the double mutation line suggests that SSIIa and SSIIIa interact with each other during starch synthesis
- Collectively, the data showed that SSIIa and SSIIIa play distinctive, but partially overlapping, roles during rice grain starch synthesis
- Double repression of soluble starch synthase genes SSIIa and SSIIIa in rice (Oryza sativa L.) uncovers interactive effects on the physicochemical properties of starch
- Consistent with their expression domains, RNAi repression of genes that encode isozymes SSI, SSIIa, and SSIIIa had strong effects on grain development, whereas no obvious phenotypic changes were observed in transgenic plants with the other SS genes being RNAi repressed, indicating functional redundancies among the genes
- Previous map-based cloning revealed that GT was controlled by ALK gene, which encodes a putative soluble starch synthase II-3
- ALK, the key gene for gelatinization temperature, is a modifier gene for gel consistency in rice
- ALK encoding soluble starch synthase IIa (SSIIa) is the major gene determining grain GT in rice
- Genomic Regions Involved in Differences in Eating and Cooking Quality Other than Wx and Alk Genes between indica and japonica Rice Cultivars
- Connection
- ALK~SSIIa, OsBEIIb~OsSBEIIb, OsbZIP58, a basic leucine zipper transcription factor, regulates starch biosynthesis in rice endosperm, Furthermore, OsbZIP58 was shown to bind directly to the promoters of six starch-synthesizing genes, OsAGPL3, Wx, OsSSIIa, SBE1, OsBEIIb, and ISA2, and to regulate their expression
- ALK~SSIIa, RISBZ1~OsbZIP58~OsSMF1, OsbZIP58, a basic leucine zipper transcription factor, regulates starch biosynthesis in rice endosperm, Furthermore, OsbZIP58 was shown to bind directly to the promoters of six starch-synthesizing genes, OsAGPL3, Wx, OsSSIIa, SBE1, OsBEIIb, and ISA2, and to regulate their expression
- ALK~SSIIa, BEI~SBE1, OsbZIP58, a basic leucine zipper transcription factor, regulates starch biosynthesis in rice endosperm, Furthermore, OsbZIP58 was shown to bind directly to the promoters of six starch-synthesizing genes, OsAGPL3, Wx, OsSSIIa, SBE1, OsBEIIb, and ISA2, and to regulate their expression
- ALK~SSIIa, Wx~qFC6, OsbZIP58, a basic leucine zipper transcription factor, regulates starch biosynthesis in rice endosperm, Furthermore, OsbZIP58 was shown to bind directly to the promoters of six starch-synthesizing genes, OsAGPL3, Wx, OsSSIIa, SBE1, OsBEIIb, and ISA2, and to regulate their expression
- ALK~SSIIa, OsISA2, OsbZIP58, a basic leucine zipper transcription factor, regulates starch biosynthesis in rice endosperm, Furthermore, OsbZIP58 was shown to bind directly to the promoters of six starch-synthesizing genes, OsAGPL3, Wx, OsSSIIa, SBE1, OsBEIIb, and ISA2, and to regulate their expression
- ALK~SSIIa, OsSSIIIa~Flo5, Double repression of soluble starch synthase genes SSIIa and SSIIIa in rice Oryza sativa L. uncovers interactive effects on the physicochemical properties of starch, To study the potential functional interactions of SS genes, we generated SSIIa/SSIIIa double repression lines whose kernels displayed a chalky kernel appearance and had increased amylose levels, increased pasting temperatures, and decreased viscosities
- ALK~SSIIa, OsSSIIIa~Flo5, Double repression of soluble starch synthase genes SSIIa and SSIIIa in rice Oryza sativa L. uncovers interactive effects on the physicochemical properties of starch, Consistent with their expression domains, RNAi repression of genes that encode isozymes SSI, SSIIa, and SSIIIa had strong effects on grain development, whereas no obvious phenotypic changes were observed in transgenic plants with the other SS genes being RNAi repressed, indicating functional redundancies among the genes
- ALK~SSIIa, OsSSIIIa~Flo5, Double repression of soluble starch synthase genes SSIIa and SSIIIa in rice Oryza sativa L. uncovers interactive effects on the physicochemical properties of starch, The nonadditive nature of the double mutation line suggests that SSIIa and SSIIIa interact with each other during starch synthesis
- ALK~SSIIa, OsSSIIIa~Flo5, Double repression of soluble starch synthase genes SSIIa and SSIIIa in rice Oryza sativa L. uncovers interactive effects on the physicochemical properties of starch, Collectively, the data showed that SSIIa and SSIIIa play distinctive, but partially overlapping, roles during rice grain starch synthesis
- ALK~SSIIa, OsSSIIIa~Flo5, Double repression of soluble starch synthase genes SSIIa and SSIIIa in rice Oryza sativa L. uncovers interactive effects on the physicochemical properties of starch, Double repression of soluble starch synthase genes SSIIa and SSIIIa in rice (Oryza sativa L.) uncovers interactive effects on the physicochemical properties of starch
- ALK~SSIIa, Wx~qFC6, Genomic Regions Involved in Differences in Eating and Cooking Quality Other than Wx and Alk Genes between indica and japonica Rice Cultivars, Genomic Regions Involved in Differences in Eating and Cooking Quality Other than Wx and Alk Genes between indica and japonica Rice Cultivars
- ALK~SSIIa, Wx~qFC6, Genomic Regions Involved in Differences in Eating and Cooking Quality Other than Wx and Alk Genes between indica and japonica Rice Cultivars, These QTLs appear to be widely distributed among indica cultivars and to be novel genetic factors for eating quality traits because their chromosome regions differed from those of the GBSSI (Wx) and SSIIa (Alk) genes
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