首页|Chromosomal-level genome and metabolome analyses of highly heterozygous allohexaploid Dendrocalamus brandisii elucidate shoot quality and developmental characteristics

Chromosomal-level genome and metabolome analyses of highly heterozygous allohexaploid Dendrocalamus brandisii elucidate shoot quality and developmental characteristics

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Dendrocalamus brandisii(Munro)Kurz is a sympodial bamboo species with inimitable taste and flavorful shoots.Its rapid growth and use as high-quality material make this bamboo species highly valued for both food processing and wood applications.However,genome in-formation for D.brandisii is lacking,primarily due to its polyploidy and large genome size.Here,we assembled a high-quality genome for hexapioid D.brandisii,which comprises 70 chromosomes with a total size of 2,756 Mb,using long-read HiFi sequencing.Furthermore,we accurately separated the genome into its three constituent subgenomes.We used Oxford Nanopore Technologies long reads to construct a transcriptomic dataset covering 15 tissues for gene annotation to complement our genome assembly,revealing differential gene ex-pression and post-transcriptional regulation.By integrating metabolome analysis,we unveiled that well-balanced lignin formation,as well as abundant flavonoid and fructose contents,contribute to the superior quality of D.brandisii shoots.Integrating genomic,transcriptomic,and metabolomic datasets provided a solid foundation for enhancing bamboo shoot quality and developing efficient gene-editing techni-ques.This study should facilitate research on D.brandisii and enhance its use as a food source and wood material by providing crucial genomic resources.

bamboo shootsDendrocalamus brandisii(Munro)Kurzflavonoidgenomelignin

Jutang Jiang、Zeyu Zhang、Yucong Bai、Xiaojing Wang、Yuping Dou、Ruiman Geng、Chongyang Wu、Hangxiao Zhang、Cunfu Lu、Lianfeng Gu、Jian Gao

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Key Laboratory of National Forestry and Grassland Administration,Beijing for Bamboo & Rattan Science and Technology,Institute of Gene Science and Industrialization for Bamboo and Rattan Resources,International Center for Bamboo and Rattan,Beijing 100102,China

College of Forestry,Basic Forestry and Proteomics Research Center,Fujian Agriculture and Forestry University,Fuzhou 350002,China

School of Life Science,Peking University,Beijing 100871,China

College of Biological Sciences and Biotechnology,Beijing Forestry University,Beijing 100083,China

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National Key Research and Development Program of ChinaNational Key Research and Development Program of ChinaNational Natural Science Foundation of China

2021YFD22005052018YFD060010132071849

2024

10.1111/jipb.13592

植物学报(英文版)
中国植物学会

植物学报(英文版)

CSTPCD
影响因子：0.921
ISSN：1672-9072
年,卷(期)：2024.66(6)
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