Author(s)

Fei Zhao, Weina Yin, Jin Du, Jian Liu, Chunyang Xiang, Zhongyou Pei, and Gaoyi Cao

Corresponding Author

Gaoyi Cao

Abstract

In this study, an F5-generation rice recombinant inbred population (referred to as RILs population) containing of 224 lines derived from cross between Z601 and C14 was selected to analyze the correlation among milling quality traits and associated quantitative trait loci (QTLs). Correlation analysis showed that the brown rice rate, milled rice rate and head milled rice rate all presented positive correlation significantly. Rate of small broken rice was negatively correlated with brown rice rate, milled rice rate and head milled rice rate significantly. A total of 13 QTLs controlling milling quality traits in rice were detected, including two QTLs controlling brown rice rate, two QTLs controlling milled rice rate, three QTLs controlling head milled rice rate and six QTLs controlling rate of small broken rice, which were located on chromosome 2, 6, 7, 8 and 12, respectively. This study would provide a strategy for detection of milling quality in low-generation materials of rice breeding.

Keywords

Rice, Milling quality, Correlation analysis, Quantitative trait loci