Of floral fortune: tinkering with the grain yield potential of cereal crops

被引：86

作者：

Sakuma, Shun ^{[1
]}

Schnurbusch, Thorsten ^{[2
,3
]}

机构：

[1] Tottori Univ, Fac Agr, Tottori 6808553, Japan

[2] Leibniz Inst Plant Genet & Crop Plant Res, D-06466 Gatersleben, Germany

[3] Martin Luther Univ Halle Wittenberg, Inst Agr & Nutr Sci, Fac Nat Sci 3, Halle, Germany

来源：

NEW PHYTOLOGIST | 2020年 / 225卷 / 05期

关键词：

fertility; floret; inflorescence; spikelet; temperate cereals; INFLORESCENCE ARCHITECTURE; FLOWER DEVELOPMENT; TRANSCRIPTION FACTOR; RICE ORTHOLOG; ROW-TYPE; BARLEY; WHEAT; SPIKELET; GENE; MERISTEM;

D O I：

10.1111/nph.16189

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Enhancing the yield potential and stability of small-grain cereals, such as wheat (Triticum sp.), rice (Oryza sativa), and barley (Hordeum vulgare), is a priority for global food security. Over the last several decades, plant breeders have increased grain yield mainly by increasing the number of grains produced in each inflorescence. This trait is determined by the number of spikelets per spike and the number of fertile florets per spikelet. Recent genetic and genomic advances in cereal grass species have identified the molecular determinants of grain number and facilitated the exchange of information across genera. In this review, we focus on the genetic basis of inflorescence architecture in Triticeae crops, highlighting recent insights that have helped to improve grain yield by, for example, reducing the preprogrammed abortion of floral organs. The accumulating information on inflorescence development can be harnessed to enhance grain yield by comparative trait reconstruction and rational design to boost the yield potential of grain crops.

引用

页码：1873 / 1882

页数：10

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