Improvement of marker-based predictability of Apparent Amylose Content in japonica rice through GBSSI allele mining.

ABSTRACT:

Background

Apparent Amylose Content (AAC), regulated by the Waxy gene, represents the key determinant of rice cooking properties. In occidental countries high AAC rice represents the most requested market class but the availability of molecular markers allowing specific selection of high AAC varieties is limited.

Results

In this study, the effectiveness of available molecular markers in predicting AAC was evaluated in a collection of 127 rice accessions (125 japonica ssp. and 2 indica ssp.) characterized by AAC values from glutinous to 26%. The analyses highlighted the presence of several different allelic patterns identifiable by a few molecular markers, and two of them, i.e., the SNPs at intron1 and exon 6, were able to explain a maximum of 79.5% of AAC variation. However,

SUBMITTER: Biselli C 

PROVIDER: S-EPMC3904453 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature