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106026

North African sharptooth catfish Clarias gariepinus In silico analyses for genetic expansion of a peculiarly successful catfish species in and out of its African homelands.

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Last updated: 25 Dec 2024

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Abstract

The African sharptooth catfish Clarias gariepinus originated from Africa, but its sturdiness and resistance to different environmental conditions enabled it to spread to almost all continents of the world. To develop effective conservation strategies for C. gariepinus, the connection patterns of its geographically related and isolated strains should be precisely described. For this purpose, 65 sequences for cytochrome oxidase subunit 1 (CO1) mitochondrial gene were retrieved from GenBank database. Common and unique haplotypes, average numbers of nucleotide substitutions (Dxy), fixation indices (FST), neutrality and expansion, phylogeny, and haplotype network analyses were all identified. 13 different haplotypes were found, most of which are related to an African haplotype mainly found in Nigeria. Other African, Asian, and South American haplotypes were detected, with the South American and some Asian haplotypes showing the greatest diversion from the main African one. The Nigerian population of C. gariepinus seems to be the most rapidly expanding one, due to the highest frequency of singletone haplotypes among all studied populations. Our results agreed with the knowledge about the world-wide propagation of C. gariepinus recorded in the Food and Agriculture Organization introduced aquatic species database and other related reports, what may confirm the effectiveness of such molecular markers and bioinformatic tools for tracking the origin and movement of the C. gariepinus out of Africa.

DOI

10.21608/jbaar.2015.106026

Keywords

Africa, Clarias gariepinus, CO1, molecular markers, population genetics

Authors

First Name

Khaled Mohammed

Last Name

Geba

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Affiliation

Molecular Biology and Genetic Engineering Division, Department of Zoology, Faculty of Sciences, Menoufia University, Shebin El- Kom, Menoufia, Egypt

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Volume

1

Article Issue

4

Related Issue

16044

Issue Date

2015-10-01

Receive Date

2015-09-15

Publish Date

2015-10-01

Page Start

184

Page End

191

Print ISSN

2356-9174

Online ISSN

2356-9182

Article File

JBAAR_Volume 1_Issue 4_Pages 184-191.pdf

PDF . 303.8kB

Link

https://jbaar.journals.ekb.eg/article_106026.html

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https://jbaar.journals.ekb.eg/service?article_code=106026

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6

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Original Article

Type Code

1,272

Publication Type

Journal

Publication Title

Journal of Bioscience and Applied Research

Publication Link

https://jbaar.journals.ekb.eg/

MainTitle

North African sharptooth catfish Clarias gariepinus In silico analyses for genetic expansion of a peculiarly successful catfish species in and out of its African homelands.

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Article

Created At

22 Jan 2023