Genetic control of grain appearance quality in rice

Dongsheng Zhao; Changquan Zhang; Qianfeng Li; Qiaoquan Liu

doi:10.1016/j.biotechadv.2022.108014

Genetic control of grain appearance quality in rice

Biotechnol Adv. 2022 Nov:60:108014. doi: 10.1016/j.biotechadv.2022.108014. Epub 2022 Jun 28.

Authors

Dongsheng Zhao¹, Changquan Zhang², Qianfeng Li², Qiaoquan Liu³

Affiliations

¹ Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China.
² Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China.
³ Key Laboratory of Crop Genomics and Molecular Breeding of Jiangsu Province, State Key Laboratory of Hybrid Rice, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China. Electronic address: qqliu@yzu.edu.cn.

PMID: 35777622
DOI: 10.1016/j.biotechadv.2022.108014

Abstract

Grain appearance, one of the key determinants of rice quality, reflects the ability to attract consumers, and is characterized by four major properties: grain shape, chalkiness, transparency, and color. Mining of valuable genes, genetic mechanisms, and breeding cultivars with improved grain appearance are essential research areas in rice biology. However, grain appearance is a complex and comprehensive trait, making it challenging to understand the molecular details, and therefore, achieve precise improvement. This review highlights the current findings of grain appearance control, including a detailed description of the key genes involved in the formation of grain appearance, and the major environmental factors affecting chalkiness. We also discuss the integration of current knowledge on valuable genes to enable accurate breeding strategies for generation of rice grains with superior appearance quality.

Keywords: Appearance quality; Genetic control; Genetic improvement; Rice.

Publication types

Review
Research Support, Non-U.S. Gov't

MeSH terms

Edible Grain / genetics
Oryza* / genetics
Phenotype
Plant Breeding
Quantitative Trait Loci