Grain Shape Genes: Shaping the Future of Rice Breeding

The main goals of rice breeding nowadays include increasing yield, improving grain quality, and promoting complete mechanized production to save labor costs. Rice grain shape, specified by three dimensions, including grain length, width and thickness, has a more precise meaning than grain size, cont...

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Main Authors: Lu Xuedan, Li Fan, Xiao Yunhua, Wang Feng, Zhang Guilian, Deng Huabing, Tang Wenbang
Format: Article
Language:English
Published: Elsevier 2023-09-01
Series:Rice Science
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1672630823000598
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author Lu Xuedan
Li Fan
Xiao Yunhua
Wang Feng
Zhang Guilian
Deng Huabing
Tang Wenbang
author_facet Lu Xuedan
Li Fan
Xiao Yunhua
Wang Feng
Zhang Guilian
Deng Huabing
Tang Wenbang
author_sort Lu Xuedan
collection DOAJ
description The main goals of rice breeding nowadays include increasing yield, improving grain quality, and promoting complete mechanized production to save labor costs. Rice grain shape, specified by three dimensions, including grain length, width and thickness, has a more precise meaning than grain size, contributing to grain appearance quality as well as grain weight and thus yield. Furthermore, the divergence of grain shape characters could be utilized in mechanical seed sorting in hybrid rice breeding systems, which has been succeeded in utilizing heterosis to achieve substantial increase in rice yield in the past decades. Several signaling pathways that regulate rice grain shape have been elucidated, including G protein signaling, ubiquitination-related pathway, mitogen-activated protein kinase signaling, phytohormone biosynthesis and signaling, microRNA process, and some other transcriptional regulatory pathways and regulators. This review summarized the recent progress on molecular mechanisms underlying rice grain shape determination and the potential of major genes in future breeding applications.
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spelling doaj.art-51030ef39f394d3a9392c090597f91392023-08-25T04:23:56ZengElsevierRice Science1672-63082023-09-01305379404Grain Shape Genes: Shaping the Future of Rice BreedingLu Xuedan0Li Fan1Xiao Yunhua2Wang Feng3Zhang Guilian4Deng Huabing5Tang Wenbang6College of Agronomy, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China;College of Agronomy, Hunan Agricultural University, Changsha 410128, ChinaCollege of Agronomy, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China;College of Agronomy, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China;College of Agronomy, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China;College of Agronomy, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China;State Key Laboratory of Hybrid Rice, Changsha 410125, China;; Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Science, Changsha 410125, China; Corresponding author:The main goals of rice breeding nowadays include increasing yield, improving grain quality, and promoting complete mechanized production to save labor costs. Rice grain shape, specified by three dimensions, including grain length, width and thickness, has a more precise meaning than grain size, contributing to grain appearance quality as well as grain weight and thus yield. Furthermore, the divergence of grain shape characters could be utilized in mechanical seed sorting in hybrid rice breeding systems, which has been succeeded in utilizing heterosis to achieve substantial increase in rice yield in the past decades. Several signaling pathways that regulate rice grain shape have been elucidated, including G protein signaling, ubiquitination-related pathway, mitogen-activated protein kinase signaling, phytohormone biosynthesis and signaling, microRNA process, and some other transcriptional regulatory pathways and regulators. This review summarized the recent progress on molecular mechanisms underlying rice grain shape determination and the potential of major genes in future breeding applications.http://www.sciencedirect.com/science/article/pii/S1672630823000598grain shapegrain qualityyieldmechanization of seed sortinghybrid ricemolecular function
spellingShingle Lu Xuedan
Li Fan
Xiao Yunhua
Wang Feng
Zhang Guilian
Deng Huabing
Tang Wenbang
Grain Shape Genes: Shaping the Future of Rice Breeding
Rice Science
grain shape
grain quality
yield
mechanization of seed sorting
hybrid rice
molecular function
title Grain Shape Genes: Shaping the Future of Rice Breeding
title_full Grain Shape Genes: Shaping the Future of Rice Breeding
title_fullStr Grain Shape Genes: Shaping the Future of Rice Breeding
title_full_unstemmed Grain Shape Genes: Shaping the Future of Rice Breeding
title_short Grain Shape Genes: Shaping the Future of Rice Breeding
title_sort grain shape genes shaping the future of rice breeding
topic grain shape
grain quality
yield
mechanization of seed sorting
hybrid rice
molecular function
url http://www.sciencedirect.com/science/article/pii/S1672630823000598
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AT wangfeng grainshapegenesshapingthefutureofricebreeding
AT zhangguilian grainshapegenesshapingthefutureofricebreeding
AT denghuabing grainshapegenesshapingthefutureofricebreeding
AT tangwenbang grainshapegenesshapingthefutureofricebreeding