<i>GH1</i> Gene Polymorphisms Reveal Population-Level Allele Variation in North African (<i>Clarias gariepinus</i>) and Bighead Catfish (<i>Clarias macrocephalus</i>).

ABSTRACT:

Background/objectives

North African catfish (Clarias gariepinus) and bighead catfish (Clarias macrocephalus) play crucial roles in Thai aquaculture. Although significant growth disparities exist among these species, the genetic factors underlying these differences are still unknown. This study aimed to identify GH1 gene polymorphisms, in North African and bighead catfish populations across Thailand and Laos.

Methods

Sequencing, phylogenetic, and clustering analyses were performed to assess genetic diversity, selection patterns, and lineage differentiation of catfish partial GH1 fragment.

Results

Six alleles of the studied fragment of GH1 gene were identified; they differed at 33 variable sites within intron 2, located between the con

SUBMITTER: Thammachak P 

PROVIDER: S-EPMC12652214 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature