Features and applications of haplotypes in crop breeding.
Features and applications of haplotypes in crop breeding.
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DOI：
10.1038/s42003-021-02782-y
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发表时间：
2021-11-04
影响因子：
5.9
通讯作者：
Varshney RK
中科院分区：
文献类型：
--
作者：
Bhat JA;Yu D;Bohra A;Ganie SA;Varshney RK
气候变化改变了病虫害动态，增加了非生物压力，威胁着全世界资源有限的农业生产系统。基因组学辅助育种（GAB）方法为提高作物育种效率和提供更好的品种做出了巨大贡献。快速增长的DNA测序能力和可负担性推动了大规模的种质测序项目，从而为育种应用的单倍型挖掘开辟了令人兴奋的途径。本文综述了单倍型的挖掘及其在复杂性状解剖和GAB方法中的应用，包括单倍型- gwas、单倍型育种、单倍型辅助基因组选择。有效部署优质单倍型以加速育种进展的改进策略将是保障全球粮食安全的关键。在这篇综述中，Bhat等人重点介绍了挖掘作物单倍型的方法，并将其用于解剖复杂性状和基因组辅助育种（GAB）方法。本文综述了在作物育种中发现优良单倍型并有针对性地进行组合的新途径，以便更快地交付适应未来气候的高产品种。
Climate change with altered pest-disease dynamics and rising abiotic stresses threatens resource-constrained agricultural production systems worldwide. Genomics-assisted breeding (GAB) approaches have greatly contributed to enhancing crop breeding efficiency and delivering better varieties. Fast-growing capacity and affordability of DNA sequencing has motivated large-scale germplasm sequencing projects, thus opening exciting avenues for mining haplotypes for breeding applications. This review article highlights ways to mine haplotypes and apply them for complex trait dissection and in GAB approaches including haplotype-GWAS, haplotype-based breeding, haplotype-assisted genomic selection. Improvement strategies that efficiently deploy superior haplotypes to hasten breeding progress will be key to safeguarding global food security. In this Review, Bhat et al. highlight ways to mine crop haplotypes and apply them for dissecting complex traits and genomics-assisted breeding (GAB) approaches. This Review presents new avenues to discover superior haplotypes and assemble them in targeted manner in crop breeding for faster delivery of high-yielding cultivars with better adaptation to future climates.
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