GWAS for Starch-Related Parameters in Japonica Rice (Oryza sativa L.).

ABSTRACT: Rice quality is mainly related to the following two starch components, apparent amylose content (AAC) and resistant starch (RS). The former affects grain cooking properties, while RS acts as a prebiotic. In the present study, a Genome Wide Association Scan (GWAS) was performed using 115 rice japonica accessions, including tropical and temperate genotypes, with the purpose of expanding the knowledge of the genetic bases affecting RS and AAC. High phenotypic variation was recorded for the two traits, which positively correlated. Moreover, both the parameters correlated with seed length (positive correlation) and seed width (negative correlation). A correlational selection according to human preferences has been hypothesized for the two starch traits and grain size. In addition, human selecti

SUBMITTER: Biselli C 

PROVIDER: S-EPMC6724095 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature