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首页> 外文期刊>Trends in Plant Science >Genetic control of root development in rice, the model cereal
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Genetic control of root development in rice, the model cereal

机译:水稻(模型谷物)根系发育的遗传控制

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摘要

Cereals possess a fibrous root system that is mainly composed of crown roots that emerge postembryonically from the nodes of the stem. Because the root system is not directly accessible and consequently difficult to study, it remains a target for breeders to improve the ability of plants to exploit the mineral and water resources of the soil. Breeding for root architecture necessitates identifying the genetic determinants of root development. This research is now underway in cereals, particularly in rice, the monocot model species. In this review, we examine recent data identifying genes that govern root development in cereals, such as ARL1/CRL1 in rice and RTCS in maize which encodes a conserved lateral organ boundary domain transcription factor involved in crown root initiation and development in response to auxin. Finally, we discuss the detection and validation of root development quantitative trait loci.
机译:谷物具有纤维状的根系,主要由冠状根组成,这些冠状根从茎的节后芽出。由于根系无法直接获得,因此难以研究,因此育种者仍然要提高植物利用土壤中矿物质和水资源的能力。根系结构的育种需要确定根系发育的遗传决定因素。现在正在对谷物,特别是对单子叶植物模型大米进行研究。在这篇综述中,我们检查了最近的数据,这些数据确定了控制谷物根系发育的基因,例如水稻中的ARL1 / CRL1和玉米中的RTCS,这些基因编码了一个保守的横向器官边界域转录因子,参与了对植物生长素的冠状根的起始和发育。最后,我们讨论了根发育数量性状基因座的检测和验证。

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