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LATEST NEWS UPDATES | Genome of salt-secreting mangrove species identified

Genome of salt-secreting mangrove species identified

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published Published on Aug 3, 2021   modified Modified on Aug 3, 2021

-The Hindu

The findings will play a key role in developing drought and salt-tolerant food crops for the 7,500 km long Indian coastline.

CUDDALORE: A group of researchers from the Department of Genetic Engineering, SRM Institute of Science and Technology, Chennai; Centre for Advanced Studies in Marine Biology, Faculty of Marine Sciences, Annamalai University and Institute of Life Sciences, Bhubaneswar, have for the first time identified a reference-grade whole genome sequence of a highly salt-tolerant and salt-secreting mangrove species, Avicennia marina.

Mangroves are important resources for the coastal region and are of great ecological and economic value. They form a link between marine and terrestrial ecosystems, protect shorelines, provide habitat for a diverse array of terrestrial organisms.

The team of researchers sequenced nearly 99 % of the genome of the species and aligned them to 31 chromosomes of the species. The findings have been published in the latest issue of Nature Communications Biology.

The study was supported by the Department of Biotechnology, Government of India. This will play a key role in developing drought and salt-tolerant food crops for the 7,500 km long Indian coastline.

According to Ayyaru Gopalakrishnan, Assistant Professor, Faculty of Marine Sciences, Annamalai University, "Avicennia marina constitutes a major part of the mangrove forests of India. It is a salt-secreting and extraordinarily salt-tolerant mangrove species that grows optimally in 75 % seawater and tolerates > than 250 % seawater.”

“It is a rare plant species, which can excrete 40 % of the salt through the salt glands in the leaves, besides its extraordinary capacity, to exclude salt entry to the roots."

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The Hindu, 3 August, 2021, https://www.thehindu.com/news/national/tamil-nadu/genome-of-salt-secreting-mangrove-species-identified/article35693837.ece?homepage=true


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