QTL-seq identifies NAL1 and OsOFP19 as additive regulators of tiller number in rice (Oryza sativa L.).

ABSTRACT:

Background

Tiller number is a critical component of rice yield, as it directly influences overall productivity. While upland rice varieties are well adapted to lowland environments and prove resilient to fluctuating water availability, their typically low tillering capacity limits their performance in lowland ecosystems where conditions are more conducive to achieving higher yields.

Results

To facilitate the marker-assisted selection (MAS) breeding of upland rice cultivars suitable for lowland conditions, we performed QTL-seq analysis using populations derived from a cross between a high-tillering lowland indica parent (PTT1) and a low-tillering upland tropical japonica line (NDCMP49). Two major QTLs associated with tiller number were identified on chromosomes 4 and 5 and de

SUBMITTER: Rongsawat T 

PROVIDER: S-EPMC12403255 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature