Detection of QTLs regulating the second internode length in rice dwarf mutant <i>d1</i>.

ABSTRACT: Stem length is a crucial agronomic trait in rice breeding. The short stature of rice dwarf mutants is caused by shortening of internodes, resulting in five distinct internode elongation patterns: dn, dm, d6, nl and sh. Several genetic studies have been conducted; however, the genetic mechanisms underlying these internode elongation patterns remain unclear. In this study, we examined two Daikoku dwarf (d1) mutants, T65(d1-1) and Kin(d1-7), which display contrasting internode elongation phenotypes. Anatomical observation revealed that T65(d1-1) exhibits a dm-type internode elongation pattern due to the lack of the second internode counted from the top, while Kin(d1-7) shows a dn-type pattern with a relatively elongated second internode. To identify the gene

SUBMITTER: Ha QT 

PROVIDER: S-EPMC11780330 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature