Genetic Architecture of Grain Yield-Related Traits in Sorghum and Maize

被引：25
作者：
Baye, Wodajo [1 ,2 ]
Xie, Qi [1 ,2 ]
Xie, Peng [1 ]
机构：
[1] Chinese Acad Sci, Innovat Acad Seed Design, Inst Genet & Dev Biol, State Key Lab Plant Genom, Beijing 100101, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES | 2022年 / 23卷 / 05期
基金：
国家重点研发计划;
关键词：
QTLs; grain yield; sorghum; maize; marker-assisted breeding; PENTATRICOPEPTIDE REPEAT PROTEIN; KERNEL ROW NUMBER; NAD2; INTRON; ZEA-MAYS L; SEED DEVELOPMENT; MAJOR QTL; PPR PROTEIN; SEX DETERMINATION; MORPHOLOGICAL TRAITS; DROUGHT TOLERANCE;
D O I：
10.3390/ijms23052405
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Grain size, grain number per panicle, and grain weight are crucial determinants of yield-related traits in cereals. Understanding the genetic basis of grain yield-related traits has been the main research object and nodal in crop science. Sorghum and maize, as very close C4 crops with high photosynthetic rates, stress tolerance and large biomass characteristics, are extensively used to produce food, feed, and biofuels worldwide. In this review, we comprehensively summarize a large number of quantitative trait loci (QTLs) associated with grain yield in sorghum and maize. We placed great emphasis on discussing 22 fine-mapped QTLs and 30 functionally characterized genes, which greatly hinders our deep understanding at the molecular mechanism level. This review provides a general overview of the comprehensive findings on grain yield QTLs and discusses the emerging trend in molecular marker-assisted breeding with these QTLs.
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页数：18
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