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The genome of walking catfish Clarias magur (Hamilton, 1822) unveils the genetic basis that may have facilitated the development of environmental and terrestrial adaptation systems in air-breathing catfishes.

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Title The genome of walking catfish Clarias magur (Hamilton, 1822) unveils the genetic basis that may have facilitated the development of environmental and terrestrial adaptation systems in air-breathing catfishes.
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Creator Basdeo Kushwaha*, Manmohan Pandey, Paramananda Das, Chaitanya G. Joshi, Naresh S. Nagpure†, Ravindra Kumar*, Dinesh Kumar, Suyash Agarwal, Shreya Srivastava, Mahender Singh, Lakshman Sahoo, Pallipuram Jayasankar‡, Prem K. Meher, Tejas M. Shah, Ankit T. Hinsu, Namrata Patel, Prakash G. Koringa, Sofia P. Das, Siddhi Patnaik, Amrita Bit, Mir A. Iquebal, Sarika Jaiswal, and Joykrushna Jena
 
Subject Clarias magur, whole genome, environmental adaptation, genomics, walking catfish
 
Description Not Available
The walking catfish Clarias magur (Hamilton, 1822) (magur) is an important catfish species inhabiting the Indian subcontinent. It is considered as a highly nutritious food fish and has the capability to walk to some distance, and survive a considerable period without water. Assembly, scaffolding and several rounds of iterations resulted in 3,484 scaffolds covering 94% of estimated genome with 9.88Mb largest scaffold, and N50 1.31 Mb. The genome possessed 23,748 predicted protein encoding genes with annotation of 19,279 orthologous genes. A total of 166 orthologous groups represented by 222 genes were found to be unique for this species. The Computational Analysis of gene Family Evolution (CAFE) analysis revealed expansion of 207 gene families and 100 gene families have rapidly evolved. Genes specific to important environmental
and terrestrial adaptation, viz. urea cycle, vision, locomotion, olfactory and vomeronasal
receptors, immune system, anti-microbial properties, mucus, thermoregulation, osmoregulation, air-breathing, detoxification, etc. were identified and critically analysed. The analysis clearly indicated that C. magur genome possessed several unique and duplicate genes similar to that of terrestrial or amphibians’ counterparts in comparison to other teleostean species. The genome information will be useful in conservation genetics, not only for this species but will also be very helpful in such studies in other catfishes.
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Date 2022-06-16T04:48:48Z
2022-06-16T04:48:48Z
2021-01-10
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/72600
 
Language English
 
Relation Not Available;
 
Publisher OXFORD