将基因组学整合到鹰嘴豆改良中:成就与机遇。
Integrating genomics for chickpea improvement: achievements and opportunities.
机构信息
Center of Excellence in Genomics and Systems Biology, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India.
The UWA Institute of Agriculture, The University of Western Australia, Perth, Australia.
出版信息
Theor Appl Genet. 2020 May;133(5):1703-1720. doi: 10.1007/s00122-020-03584-2. Epub 2020 Apr 6.
Integration of genomic technologies with breeding efforts have been used in recent years for chickpea improvement. Modern breeding along with low cost genotyping platforms have potential to further accelerate chickpea improvement efforts. The implementation of novel breeding technologies is expected to contribute substantial improvements in crop productivity. While conventional breeding methods have led to development of more than 200 improved chickpea varieties in the past, still there is ample scope to increase productivity. It is predicted that integration of modern genomic resources with conventional breeding efforts will help in the delivery of climate-resilient chickpea varieties in comparatively less time. Recent advances in genomics tools and technologies have facilitated the generation of large-scale sequencing and genotyping data sets in chickpea. Combined analysis of high-resolution phenotypic and genetic data is paving the way for identifying genes and biological pathways associated with breeding-related traits. Genomics technologies have been used to develop diagnostic markers for use in marker-assisted backcrossing programmes, which have yielded several molecular breeding products in chickpea. We anticipate that a sequence-based holistic breeding approach, including the integration of functional omics, parental selection, forward breeding and genome-wide selection, will bring a paradigm shift in development of superior chickpea varieties. There is a need to integrate the knowledge generated by modern genomics technologies with molecular breeding efforts to bridge the genome-to-phenome gap. Here, we review recent advances that have led to new possibilities for developing and screening breeding populations, and provide strategies for enhancing the selection efficiency and accelerating the rate of genetic gain in chickpea.
近年来,基因组技术与育种工作的结合被用于鹰嘴豆的改良。现代育种技术与低成本基因分型平台相结合,有潜力进一步加速鹰嘴豆的改良工作。新型育种技术的实施有望为作物生产力的提高做出重大贡献。虽然传统的育种方法在过去已经导致了 200 多种改良的鹰嘴豆品种的发展,但仍有很大的提高生产力的空间。预计将现代基因组资源与传统的育种工作相结合,将有助于在相对较短的时间内提供适应气候变化的鹰嘴豆品种。基因组学工具和技术的最新进展促进了鹰嘴豆大规模测序和基因分型数据集的产生。对高分辨率表型和遗传数据的综合分析为鉴定与育种相关性状相关的基因和生物学途径铺平了道路。基因组学技术已被用于开发用于标记辅助回交计划的诊断标记,该计划在鹰嘴豆中产生了几个分子育种产品。我们预计,基于序列的整体育种方法,包括功能组学的整合、亲本选择、正向育种和全基因组选择,将带来鹰嘴豆优良品种开发的范式转变。需要将现代基因组学技术产生的知识与分子育种工作相结合,以弥合基因组到表型的差距。在这里,我们回顾了最近的进展,这些进展为开发和筛选育种群体带来了新的可能性,并提供了提高选择效率和加速鹰嘴豆遗传增益的策略。