Detection of dominant QTLs for stigma exsertion ratio in rice derived from Oryza rufipogon accession 'W0120'.

ABSTRACT: Stigma exsertion can enhance the outcrossing fertility in rice. Dominant genes for this trait are expected to be essential for the effective application of a novel outcrossing-based breeding system that uses male sterility in rice, which is normally autogamous. Because reduction of stigma exsertion is a domestication trait, we screened wild rice species as possible donors of genes or QTLs for stigma exsertion. We used in silico image-based screening and selected the Oryza rufipogon accession 'W0120'. A single F₁ individual derived from a cross between the japonica rice cultivar 'Akidawara' and 'W0120' was used to generate F₂ and BC₁F₁ populations. QTL analysis performed using 114 F₂ individuals detected QTLs on chr

SUBMITTER: Bakti C 

PROVIDER: S-EPMC6507721 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature