Genomics as the key to unlocking the polyploid potential of wheat

被引:107
作者
Borrill, Philippa [1 ]
Adamski, Nikolai [1 ]
Uauy, Cristobal [1 ]
机构
[1] John Innes Ctr, Norwich NR4 7UH, Norfolk, England
基金
英国生物技术与生命科学研究理事会;
关键词
functional genomics; genomics; homoeologues; next-generation sequencing; polyploid; Targeting Induced Local Lesions in Genomes (TILLING); Triticum aestivum; Wheat; BULKED SEGREGANT ANALYSIS; SCALE GENE NETWORK; RNA INTERFERENCE; DISEASE-RESISTANCE; INDUCED MUTATIONS; GREEN-REVOLUTION; PHYSICAL MAP; FUNCTIONAL GENOMICS; WIDE ASSOCIATION; DRAFT GENOME;
D O I
10.1111/nph.13533
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Polyploidy has played a central role in plant genome evolution and in the formation of new species such as tetraploid pasta wheat and hexaploid bread wheat. Until recently, the high sequence conservation between homoeologous genes, together with the large genome size of polyploid wheat, had hindered genomic analyses in this important crop species. In the past 5 yr, however, the advent of next-generation sequencing has radically changed the wheat genomics landscape. Here, we review a series of advances in genomic resources and tools for functional genomics that are shifting the paradigm of what is possible in wheat molecular genetics and breeding. We discuss how understanding the relationship between homoeologues can inform approaches to modulate the response of quantitative traits in polyploid wheat; we also argue that functional redundancy has 'locked up' a wide range of phenotypic variation in wheat. We explore how genomics provides key tools to inform targeted manipulation of multiple homoeologues, thereby allowing researchers and plant breeders to unlock the full polyploid potential of wheat.
引用
收藏
页码:1008 / 1022
页数:15
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