Integrated genomics and molecular breeding approaches for dissecting the complex quantitative traits in crop plants

Journal of biosciences

Maneesha S Saxena¹  Laxmi¹  Alice Kujur¹  Deepak Bajaj¹  Swarup K Parida1¹ 

[1] Plant Genomics and Molecular Breeding Laboratory, National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi 110 067, India$$

关键词: Complex quantitative traits;    genomics;    molecular breeding;    SNP;    SSR;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

The enormous population growth, climate change and global warming are now considered major threats to agriculture and world’s food security. To improve the productivity and sustainability of agriculture, the development of high-yielding and durable abiotic and biotic stress-tolerant cultivars and/climate resilient crops is essential. Henceforth, understanding the molecular mechanism and dissection of complex quantitative yield and stress tolerance traits is the prime objective in current agricultural biotechnology research. In recent years, tremendous progress has been made in plant genomics and molecular breeding research pertaining to conventional and next-generation whole genome, transcriptome and epigenome sequencing efforts, generation of huge genomic, transcriptomic and epigenomic resources and development of modern genomics-assisted breeding approaches in diverse crop genotypes with contrasting yield and abiotic stress tolerance traits. Unfortunately, the detailed molecular mechanism and gene regulatory networks controlling such complex quantitative traits is not yet well understood in crop plants. Therefore, we propose an integrated strategies involving available enormous and diverse traditional and modern –omics (structural, functional, comparative and epigenomics) approaches/resources and genomics-assisted breeding methods which agricultural biotechnologist can adopt/utilize to dissect and decode the molecular and gene regulatory networks involved in the complex quantitative yield and stress tolerance traits in crop plants. This would provide clues and much needed inputs for rapid selection of novel functionally relevant molecular tags regulating such complex traits to expedite traditional and modern marker-assisted genetic enhancement studies in target crop species for developing high-yielding stress-tolerant varieties.

【 授权许可】

Unknown