A reference-grade genome identifies salt-tolerance genes from the salt-secreting mangrove species Avicennia marina

被引：48

作者：

Natarajan, Purushothaman ^{[1
]}

Murugesan, Ashok Kumar ^{[1
]}

Govindan, Ganesan ^{[1
]}

Gopalakrishnan, Ayyaru ^{[2
]}

Kumar, Ravichandiran ^{[1
]}

Duraisamy, Purushothaman ^{[1
]}

Balaji, Raju ^{[1
]}

Tanuja ^{[1
]}

Shyamli, Puhan Sushree ^{[3
]}

Parida, Ajay K. ^{[3
]}

Parani, Madasamy ^{[1
]}

机构：

[1] SRM Inst Sci & Technol, Dept Genet Engn, Genom Lab, Kattankulathur, Tamil Nadu, India

[2] Annamalai Univ, Fac Marine Sci, Ctr Adv Study Marine Biol, Parangipettai, Tamil Nadu, India

[3] Inst Life Sci, NALCO Sq, Bhubaneswar, India

来源：

COMMUNICATIONS BIOLOGY | 2021年 / 4卷 / 01期

关键词：

BETAINE-ALDEHYDE DEHYDROGENASE; SALINITY TOLERANCE; BIOCONDUCTOR PACKAGE; TRANSCRIPTION FACTOR; ARABIDOPSIS; EXPRESSION; PLANT; STRESS; OVEREXPRESSION; ANNOTATION;

D O I：

10.1038/s42003-021-02384-8

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Water scarcity and salinity are major challenges facing agriculture today, which can be addressed by engineering plants to grow in the boundless seawater. Understanding the mangrove plants at the molecular level will be necessary for developing such highly salt-tolerant agricultural crops. With this objective, we sequenced the genome of a salt-secreting and extraordinarily salt-tolerant mangrove species, Avicennia marina, that grows optimally in 75% seawater and tolerates >250% seawater. Our reference-grade similar to 457 Mb genome contains 31 scaffolds corresponding to its chromosomes. We identified 31,477 protein-coding genes and a salinome consisting of 3246 salinity-responsive genes and homologs of 614 experimentally validated salinity tolerance genes. The salinome provides a strong foundation to understand the molecular mechanisms of salinity tolerance in plants and breeding crops suitable for seawater farming.

引用

页数：10

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