Identification of QTLs for internode length and diameter associated with lodging resistance in rice.

ABSTRACT:

Introduction

Lodging is a significant challenge in rice production, particularly for high-yielding cultivars. Previous research has shown that stem characteristics, such as internode length and diameter, are key determinants of lodging resistance. However, the genetic mechanisms controlling these traits remain poorly understood.

Methods

To investigate the genetic basis of lodging-related stem traits, a recombinant inbred line (RIL) population was developed from a cross between Zhenshan 97 and C309, two rice varieties with contrasting stem architectures. A high-density genetic linkage map was constructed using 3,307 bin markers generated by next-generation sequencing. Comprehensive phenotypic analysis was conducted for heading date, internode length, and diameter.

Results<

SUBMITTER: Lin Q 

PROVIDER: S-EPMC12748189 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature