Direct identification of a mutation in OsSh1 causing non-shattering in a rice (Oryza sativa L.) mutant cultivar using whole-genome resequencing.

ABSTRACT: Loss of seed shattering has been regarded as a key step during crop domestication. Mutagenesis contributes to the development of novel crop cultivars with a desired seed-shattering habit in a relatively short period of time, but also to uncovering the genetic architecture of seed shattering. 'Minamiyutaka', a non-shattering indica rice cultivar, was developed from the easy-shattering cultivar 'Moretsu' by mutation breeding via gamma-ray irradiation. In present study, we observed significant differences in shattering habit, breaking tensile strength, and abscission zone structure between 'Moretsu' and 'Minamiyutaka'. Whole-genome mutation analysis of 'Minamiyutaka' newly identified a 13-bp deletion causing defective splicing in exon 3 of the OsSh1 gene which has previously been referred to

SUBMITTER: Li F 

PROVIDER: S-EPMC7483440 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature