Genomics breeding approaches for developing Sorghum bicolor lines with stress resilience and other agronomic traits

IF 5.4 Q1 PLANT SCIENCES Current Plant Biology Pub Date : 2023-12-23 DOI:10.1016/j.cpb.2023.100314
Vinutha Kanuganhalli Somegowda , S.E. Diwakar Reddy , Anil Gaddameedi , K.N.S. Usha Kiranmayee , Jalaja Naravula , P.B. Kavi Kishor , Suprasanna Penna
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Abstract

Sorghum, also known as great millet, is a major cereal crop that feeds over 500 million people in more than 100 countries, especially in Africa and Asia. It can grow well under harsh environmental conditions, such as drought, heat, salinity, and soils that are nutritionally poor. The crop is water- and nitrogen-efficient with C4 photosynthesis system and a relatively small genome of about 730 Mb. Its genome has been sequenced and annotated, revealing significant genetic variation and genomics resources. Despite being drought tolerant, there is a great degree of variation among the diverse lines of germplasm for drought and drought associated traits, and hence resilience to drought and other stresses need to be studied through the integration of phenomics and genomics technologies. There is an urgent need to adopt advanced genomics and high-throughput technologies to find candidate genes and alleles for crop traits, develop molecular markers and genomic selection (GS) models, create new genetic variation and design sorghum ideotypes that suit to the changing climate.

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开发具有抗逆性和其他农艺性状的高粱双色系的基因组育种方法
高粱,又称小米,是一种主要谷类作物,为 100 多个国家,特别是非洲和亚洲的 5 亿多人提供食物。它能在干旱、炎热、盐碱和营养不良的土壤等恶劣环境条件下生长良好。这种作物节水节氮,具有 C4 光合作用系统,基因组相对较小,约为 730 Mb。对其基因组进行了测序和注释,发现了大量遗传变异和基因组学资源。尽管耐旱,但不同种质之间在干旱和干旱相关性状方面存在很大程度的差异,因此需要通过表型组学和基因组学技术的整合来研究对干旱和其他胁迫的恢复能力。目前迫切需要采用先进的基因组学和高通量技术来寻找作物性状的候选基因和等位基因,开发分子标记和基因组选择(GS)模型,创造新的遗传变异,并设计出适合不断变化的气候的高粱表意型。
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来源期刊
Current Plant Biology
Current Plant Biology Agricultural and Biological Sciences-Plant Science
CiteScore
10.90
自引率
1.90%
发文量
32
审稿时长
50 days
期刊介绍: Current Plant Biology aims to acknowledge and encourage interdisciplinary research in fundamental plant sciences with scope to address crop improvement, biodiversity, nutrition and human health. It publishes review articles, original research papers, method papers and short articles in plant research fields, such as systems biology, cell biology, genetics, epigenetics, mathematical modeling, signal transduction, plant-microbe interactions, synthetic biology, developmental biology, biochemistry, molecular biology, physiology, biotechnologies, bioinformatics and plant genomic resources.
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