10.3389/fpls.2018.01173.s001
Aike Zhu
Aike
Zhu
Yingxin Zhang
Yingxin
Zhang
Zhenhua Zhang
Zhenhua
Zhang
Beifang Wang
Beifang
Wang
Pao Xue
Pao
Xue
Yongrun Cao
Yongrun
Cao
Yuyu Chen
Yuyu
Chen
Zihe Li
Zihe
Li
Qunen Liu
Qunen
Liu
Shihua Cheng
Shihua
Cheng
Liyong Cao
Liyong
Cao
Data_Sheet_1_Genetic Dissection of qPCG1 for a Quantitative Trait Locus for Percentage of Chalky Grain in Rice (Oryza sativa L.).docx
Frontiers
2018
chalkiness
QTL
residual heterozygous
qPCG1
rice
2018-08-10 04:23:23
Dataset
https://frontiersin.figshare.com/articles/dataset/Data_Sheet_1_Genetic_Dissection_of_qPCG1_for_a_Quantitative_Trait_Locus_for_Percentage_of_Chalky_Grain_in_Rice_Oryza_sativa_L_docx/6954245
<p>Rice is a pivotal cereal crop that provides the staple food for more than half of the world’s population. Along with improvements in the standard of living, people not only pay attention to the grain yield but also to the grain quality. Chalkiness is one of the most important index of grain quality. In this study, qPCG1, a QTL for percentage of chalky grain, was mapped in an interval with a physical distance about 139 kb on chromosome 1 by residual heterozygous line (RHL) method. qPCG1 was incomplete dominant and the additive effect plays a major role and explained 6.8–21.9% of phenotypic variance within the heterogeneous region on chromosome 1. The effect of allele from Zhonghui9308 was decreasing the percentage of chalky grains (PCG). Microscope observation results indicated that there are great differences in the shape, structure and arrangement of starch granule between the chalky part and transparent part. Analysis of starch physicochemical properties showed that the total starch content, amylose content and chain length distribution of amylopectin changed while the protein contents were not apparently affected with the changed chalkiness. qPCG1 had little influence on main agronomic traits and it might be useful in rice breeding for it did not bring negative effect on grain yield while reducing the chalkiness.</p>