Genomic insights of Dalbergia latifolia (Indian rosewood): applications in conservation and beyond

IF 2.1 3区 农林科学 Q2 FORESTRY
Trees Pub Date : 2025-03-13 DOI:10.1007/s00468-025-02617-x
T. N. Manohara, S. M. Balakrishna, H. S. Suresh
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引用次数: 0

Key Message

The de novo genome sequencing of Dalbergia latifolia (Indian rosewood) reveals crucial genetic insights, aiding conservation, sustainable timber production, and scientific research. The high-quality draft genome identifies key pathways and markers for improving disease resistance and timber quality, supporting the protection and sustainable use of this important species.

Abstract

Wood, as a natural and sustainable energy source, serves as an eco-efficient alternative to fossil fuels, and is playing a vital role in stabilizing woody plants and transporting water to all plant parts. Over the last few decades, our knowledge of cellular wood formation (xylogenesis) has significantly increased. Dalbergia latifolia, commonly known as ‘Indian rosewood’, emerges as a premier timber species from the Indo-Malaysian region. This slow-growing tree is prized for its durable timber, which is stronger and harder than teak, and for its natural resistance to pests and fungal attacks. However, escalating demand for rosewood, particularly from China, has led to increased illegal exploitation and listing under CITES Appendix 2. By the end of 2020, D. latifolia was assessed as globally vulnerable by the IUCN Red List of Threatened Species under criteria A1cd. Key threats in India include inadequate regeneration and slow growth rates due to rising commercial demand. In response, India has banned the export of logs and sawn wood from this species. Despite its ecological and economic significance, genome-level information for D. latifolia has been lacking, hindering scientific research and conservation efforts. This study presents a comprehensive de novo genome sequencing and assembly of D. latifolia, providing valuable insights into its genetic makeup and potential applications. We generated 22,319 contigs totaling 613.95 Mb with high completeness (95%) and an identification rate of 92% for single-copy BUSCO genes.

黄檀(印度红木)的基因组分析:在保护及其他方面的应用
印度红木(Dalbergia latifolia)的基因组测序揭示了重要的遗传信息,有助于保护、可持续木材生产和科学研究。高质量的基因组草图确定了提高抗病性和木材质量的关键途径和标记,支持了这一重要物种的保护和可持续利用。摘要木材作为一种天然的可持续能源,作为一种生态高效的化石燃料替代品,在稳定木本植物和向植物各部位输送水分方面起着至关重要的作用。在过去的几十年里,我们对细胞木材形成(木质学)的了解有了显著的增加。黄檀(Dalbergia latifolia),俗称“印度红木”,是印度-马来西亚地区的主要木材品种。这种生长缓慢的树木因其耐用的木材而备受赞誉,这种木材比柚木更坚固、更坚硬,而且它对害虫和真菌的天然抵抗力也很强。然而,对红木的需求不断上升,特别是来自中国的需求,导致非法开采和列入CITES附录2。到2020年底,根据A1cd标准,世界自然保护联盟(IUCN)将大叶紫檀列入全球濒危物种红色名录。印度面临的主要威胁包括再生不足和商业需求上升导致的增长缓慢。作为回应,印度已禁止出口该物种的原木和锯材。尽管其具有重要的生态和经济意义,但其基因组水平的信息一直缺乏,阻碍了科学研究和保护工作。本研究提出了一个全面的从头基因组测序和组装,为其基因组成和潜在的应用提供了有价值的见解。我们获得了22,319个contigs,总计613.95 Mb,具有较高的完整性(95%)和92%的单拷贝BUSCO基因识别率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Trees
Trees 农林科学-林学
CiteScore
4.50
自引率
4.30%
发文量
113
审稿时长
3.8 months
期刊介绍: Trees - Structure and Function publishes original articles on the physiology, biochemistry, functional anatomy, structure and ecology of trees and other woody plants. Also presented are articles concerned with pathology and technological problems, when they contribute to the basic understanding of structure and function of trees. In addition to original articles and short communications, the journal publishes reviews on selected topics concerning the structure and function of trees.
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