Telomere-to-telomere genome of the allotetraploid legume Sesbania cannabina reveals transposon-driven subgenome divergence and mechanisms of alkaline stress tolerance.

Sesbania cannabina alkaline stress allotetraploid green manure legume phosphate transporter telomere-to-telomere genome

Journal

Science China. Life sciences
ISSN: 1869-1889
Titre abrégé: Sci China Life Sci
Pays: China
ID NLM: 101529880

Informations de publication

Date de publication:
25 Oct 2023
Historique:
received: 20 07 2023
accepted: 10 10 2023
medline: 29 10 2023
pubmed: 29 10 2023
entrez: 28 10 2023
Statut: aheadofprint

Résumé

Alkaline soils pose an increasing problem for agriculture worldwide, but using stress-tolerant plants as green manure can improve marginal land. Here, we show that the legume Sesbania cannabina is very tolerant to alkaline conditions and, when used as a green manure, substantially improves alkaline soil. To understand genome evolution and the mechanisms of stress tolerance in this allotetraploid legume, we generated the first telomere-to-telomere genome assembly of S. cannabina spanning ∼2,087 Mb. The assembly included all centromeric regions, which contain centromeric satellite repeats, and complete chromosome ends with telomeric characteristics. Further genome analysis distinguished A and B subgenomes, which diverged approximately 7.9 million years ago. Comparative genomic analysis revealed that the chromosome homoeologs underwent large-scale inversion events (>10 Mb) and a significant, transposon-driven size expansion of the chromosome 5A homoeolog. We further identified four specific alkali-induced phosphate transporter genes in S. cannabina; these may function in alkali tolerance by relieving the deficiency in available phosphorus in alkaline soil. Our work highlights the significance of S. cannabina as a green tool to improve marginal lands and sheds light on subgenome evolution and adaptation to alkaline soils.

Identifiants

pubmed: 37897613
doi: 10.1007/s11427-023-2463-y
pii: 10.1007/s11427-023-2463-y
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Informations de copyright

© 2023. Science China Press.

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Auteurs

Haofei Luo (H)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.

Xiaofei Wang (X)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
Hainan Yazhou Bay Seed Lab, Sanya, 572025, China.

Changqing You (C)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.

Xuedan Wu (X)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.

Duofeng Pan (D)

Institute of Forage and Grassland Sciences, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China.

Zhiyao Lv (Z)

Hainan Yazhou Bay Seed Lab, Sanya, 572025, China.

Tong Li (T)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.

Dongmei Zhang (D)

Institute of Forage and Grassland Sciences, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China.

Zhongbao Shen (Z)

Institute of Forage and Grassland Sciences, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China.

Xiaodong Zhang (X)

Shandong Academy of Agricultural Sciences, Jinan, 250100, China.
National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land, Dongying, 257345, China.
Shandong Green Manure Ecological Technology Co., Ltd, Dongying, 257345, China.

Guodao Liu (G)

State Key Laboratory of Tropical Crop Breeding, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.

Kaixuan He (K)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
Hainan Yazhou Bay Seed Lab, Sanya, 572025, China.

Qingtong Ye (Q)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.

Yajun Jia (Y)

Hainan Yazhou Bay Seed Lab, Sanya, 572025, China.

Qinghua Zhao (Q)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.

Xian Deng (X)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.

Xiaofeng Cao (X)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China. xfcao@genetics.ac.cn.
University of Chinese Academy of Sciences, Beijing, 100049, China. xfcao@genetics.ac.cn.

Xianwei Song (X)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China. xwsong@genetics.ac.cn.

Gai Huang (G)

State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China. ghuang@genetics.ac.cn.

Classifications MeSH