de Freitas Karine E Janner, Dos Santos Railson Schreinert, Busanello Carlos, de Carvalho Victoria Filipe, Lopes Jennifer Luz, Wing Rod A, de Oliveira Antonio Costa
Centro de desenvolvimento Tecnológico-CDTec, Graduate Program in biotechnology, Capão do Leão Campus, Federal de Pelotas, Pelotas 96160, Brazil.
Instituto Federal de Educação, Ciência e Tecnologia Farroupilha (IFFar), Alegrete 97541, Brazil.
Plants (Basel). 2021 May 25;10(6):1057. doi: 10.3390/plants10061057.
Cooking quality is an important attribute in Common/Asian rice ( L.) varieties, being highly dependent on grain starch composition. This composition is known to be highly dependent on a cultivar's genetics, but the way in which their genes express different phenotypes is not well understood. Further analysis of variation of grain quality genes using new information obtained from the wild relatives of rice should provide important insights into the evolution and potential use of these genetic resources. All analyses were conducted using bioinformatics approaches. The analysis of the protein sequences of grain quality genes across the suggest that the deletion/mutation of amino acids in active sites result in variations that can negatively affect specific steps of starch biosynthesis in the endosperm. On the other hand, the complete deletion of some genes in the wild species may not affect the amylose content. Here we present new insights for evolution from starch-specific rice phenotypes.
蒸煮品质是普通/亚洲栽培稻品种的一个重要特性，高度依赖于籽粒淀粉组成。已知这种组成高度依赖于品种的遗传学，但它们的基因表达不同表型的方式尚未得到很好的理解。利用从水稻野生近缘种获得的新信息进一步分析籽粒品质基因的变异，应该能为这些遗传资源的进化和潜在利用提供重要见解。所有分析均采用生物信息学方法进行。对水稻全基因组中籽粒品质基因的蛋白质序列分析表明，活性位点氨基酸的缺失/突变会导致变异，从而可能对胚乳中淀粉生物合成的特定步骤产生负面影响。另一方面，野生种中某些基因的完全缺失可能不会影响直链淀粉含量。在此，我们展示了从淀粉特异性水稻表型中获得的关于其进化的新见解。
