A chromosome-scale genome sequence of sudangrass (Sorghum sudanense) highlights the genome evolution and regulation of dhurrin biosynthesis

Li, Jieqin; Wang, Lihua; Bible, Paul W.; Tu, Wenmiao; Zheng, Jian; Jin, Peng; Liu, Yanlong; Du, Junli; Zheng, Jingwu; Wang, Yihong; Zhan, Qiuwen

doi:10.1007/s00122-023-04262-9

Cited by 2 publications

(1 citation statement)

References 65 publications

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“…A study by on sudangrass (Sorghum sudanense), a hybrid forage known for its significant biomass and low dhurrin content, uncovered a QTL closely linked to hydrocyanic acid potential (HCN-p), with associated SNPs pointing to the CYP79A1 gene, a key player in dhurrin synthesis. This finding is pivotal in understanding the genetic underpinnings of the dhurrin content in sudangrass, as opposed to sorghum (Sorghum bicolor (L.) Moench), which plays a critical role in ensuring the safety and quality of forage [28].…”

Section: Genome-wide Association Studies (Gwass)mentioning

confidence: 99%

Advances in Molecular Breeding of Forage Crops: Technologies, Applications and Prospects

Chen

2024

Agriculture

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Molecular breeding has revolutionized the improvement of forage crops by offering precise tools to enhance the yield, quality, and environmental resilience. This review provides a comprehensive overview of the current technologies, applications, and future directions in the field of forage crop molecular breeding. Technological advancements in the field, including Quantitative Trait Loci (QTL) mapping, Genome-Wide Association Studies (GWASs), genomic selection (GS), and genome-editing tools such as CRISPR-Cas9, have significantly advanced the identification and incorporation of beneficial traits into forage species. These approaches have dramatically shortened the breeding cycles and increased the efficiency of developing cultivars with improved yield, disease resistance, stress tolerance, and nutritional profiles. The implementation of these technologies has led to notable successes, as demonstrated by case studies on various forage crops, showcasing enhanced forage quality and adaptability to challenging environmental conditions. Furthermore, the integration of high-throughput phenotyping with advanced bioinformatics tools has streamlined the management of large-scale genomic data, facilitating more precise selection and breeding decisions. Looking ahead, this review explores the potential of emerging technologies, such as the application of artificial intelligence in predictive breeding, along with the associated ethical and regulatory considerations. While we stand to gain benefit from these innovations, the future of molecular breeding in forage crops must also confront the challenges posed by climate change and the imperative of sustainable agricultural practices. This review concludes by emphasizing the transformative impact of molecular breeding on the improvement of forage crop and the critical need for ongoing research and collaboration to fully realize its potential.

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Section: Genome-wide Association Studies (Gwass)mentioning

confidence: 99%

Advances in Molecular Breeding of Forage Crops: Technologies, Applications and Prospects

Chen

2024

Agriculture

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Genome-Wide Identification and Characterization of MYB Transcription Factors in Sudan Grass under Drought Stress

Liu,

Xu,

et al. 2024

Plants

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Sudan grass (Sorghum sudanense S.) is a warm-season annual grass with high yield, rich nutritional value, good regeneration, and tolerance to biotic and abiotic stresses. However, prolonged drought affects the yield and quality of Sudan grass. As one of the largest families of multifunctional transcription factors in plants, MYB is widely involved in regulating plant growth and development, hormonal signaling, and stress responses at the gene transcription level. However, the regulatory role of MYB genes has not been well characterized in Sudan grass under abiotic stress. In this study, 113 MYB genes were identified in the Sudan grass genome and categorized into three groups by phylogenetic analysis. The promoter regions of SsMYB genes contain different cis-regulatory elements, which are involved in developmental, hormonal, and stress responses, and may be closely related to their diverse regulatory functions. In addition, collinearity analysis showed that the expansion of the SsMYB gene family occurred mainly through segmental duplications. Under drought conditions, SsMYB genes showed diverse expression patterns, which varied at different time points. Interaction networks of 74 SsMYB genes were predicted based on motif binding sites, expression correlations, and protein interactions. Heterologous expression showed that SsMYB8, SsMYB15, and SsMYB64 all significantly enhanced the drought tolerance of yeast cells. Meanwhile, the subcellular localization of all three genes is in the nucleus. Overall, this study provides new insights into the evolution and function of MYB genes and provides valuable candidate genes for breeding efforts in Sudan grass.

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A chromosome-scale genome sequence of sudangrass (Sorghum sudanense) highlights the genome evolution and regulation of dhurrin biosynthesis

Cited by 2 publications

References 65 publications

Advances in Molecular Breeding of Forage Crops: Technologies, Applications and Prospects

Advances in Molecular Breeding of Forage Crops: Technologies, Applications and Prospects

Genome-Wide Identification and Characterization of MYB Transcription Factors in Sudan Grass under Drought Stress

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