MicroRNAs meet with quantitative trait loci: Small powerful players in regulating quantitative yield traits in rice
MicroRNAs meet with quantitative trait loci: Small powerful players in regulating quantitative yield traits in rice
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MicroRNA与数量性状基因座相遇：调节水稻产量性状的小而强大的参与者
DOI：
10.1002/wrna.1556
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发表时间：
2019-11
影响因子：
7.3
通讯作者：
Zhao Quanzhi
中科院分区：
文献类型：
--
作者：
Peng Ting;Teotia Sachin;Tang Guiliang;Zhao Quanzhi
MicroRNAs （miRNAs）是一种小的非编码rna，在植物和动物中调节与生长、发育和应激反应相关的各种功能。水稻（Oryza sativa）是世界上最重要的粮食作物之一。在水稻中，已经发现了许多控制产量相关性状的数量性状位点（QTL）。其中一些实际上是由mirna控制的，这些mirna控制着水稻中与产量相关的各种数量性状。一方面，许多这些mirna被发现调节不止一种与产量相关的性状，如分蘖、晶粒大小和穗枝数。另一方面，水稻产量相关性状通常由多个mirna控制，例如，miR156、miR167、miR396、miR397和miR1432控制晶粒大小。在极少数情况下，单个miRNA可能只特异性调控一个产量相关性状，如调控水稻分蘖的miR444。本文综述了mirna在控制水稻产量相关数量性状中的作用，包括穗粒数、粒重/粒大小、穗长和分枝、单株分蘖数、小穗数、结实率和叶片倾角等，并讨论了如何利用现代分子生物学工具调节这些mirna的表达以促进水稻产量。
MicroRNAs (miRNAs) are small noncoding RNAs which regulate various functions related to growth, development, and stress responses in plants and animals. Rice, Oryza sativa, is one of the most important food crops of the world. In rice, a number of quantitative trait loci (QTL) controlling yield‐related traits have been identified. Some of them are actually controlled by miRNAs, which control various yield‐related quantitative traits in rice. On one hand, many of these miRNAs are found to regulate more than one yield‐related traits, such as tillering, grain size, and branch number of a panicle. On the other hand, a rice yield‐related trait is usually controlled by multiple miRNAs, for example, grain size being controlled by miR156, miR167, miR396, miR397, and miR1432. In rare case, a single miRNA may specifically regulate only one yield‐related trait, such as, miR444 regulating rice tillering. In this review, we focus on the functions of miRNAs in controlling yield‐related quantitative traits in rice, including panicle grain number, grain weight/size, panicle length and branching, tiller number per plant, spikelet number, seed setting rate, and leaf inclination, and discuss how to modulate the expression of these miRNAs using modern molecular biology tools to promote grain yield.
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