Emerging importance of bighead catfish (Clarias macrocephalus) and north African catfish (C. gariepinus) as a bioresource and their genomic perspective

Lisachov, Artem; Nguyen, Dung Ho My; Panthum, Thitipong; Ahmad, Syed Farhan; Singchat, Worapong; Ponjarat, Jatupong; Jaisamut, Kitipong; Srisapoome, Prapansak; Duengkae, Prateep; Hatachote, S.; Sriphairoj, Kednapat; Muangmai, Narongrit; Unajak, Sasimanus; Han, Kyudong; Na-Nakorn, Uthairat; Srikulnath, Kornsorn

doi:10.1016/j.aquaculture.2023.739585

Cited by 16 publications

(8 citation statements)

References 80 publications

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“…Critically, over the past decade, a decline in survival, growth, low conception, and fertility rates has been observed in North African catfish populations in Thailand. This reduction in the productive efficiency may be primarily attributable to the low quality of breeding populations of the North African catfish [ 11 , 14 , 18 – 20 ]. The long-term breeding using closed stocks of the North African catfish may have admittedly resulted in a loss of genetic variation in descendant populations [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

“…Intensive translocations of the North African catfish have occurred, primarily within Africa and Asia [8][9][10]. In Southeast Asia, the North African catfish is not favored by consumers due to its unfavorable color and texture of meat [3,11]. Consequently, in 1987, hybrid catfish were developed through artificial crossbreeding of male North African and female bighead catfish to increase productivity and meat quality [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…The long-term breeding using closed stocks of the North African catfish may have admittedly resulted in a loss of genetic variation in descendant populations [20]. In Thailand, over three different population stocks of the North African catfish are believed to have been introduced; however, their origins and breeding process are unknown because of the absence of breeding record [10,11,20]. Genetic variations decrease in the breeding stocks that passed through many generations in closed populations, resulting in the reduced growth performance, fertility, and viability in descendant populations caused by inbreeding depression [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

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Questioning inbreeding: Could outbreeding affect productivity in the North African catfish in Thailand?

Patta,

Panthum,

Thatukan

et al. 2024

PLoS ONE

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The North African catfish (Clarias gariepinus) is a significant species in aquaculture, which is crucial for ensuring food and nutrition security. Their high adaptability to diverse environments has led to an increase in the number of farms that are available for their production. However, long-term closed breeding adversely affects their reproductive performance, leading to a decrease in production efficiency. This is possibly caused by inbreeding depression. To investigate the root cause of this issue, the genetic diversity of captive North African catfish populations was assessed in this study. Microsatellite genotyping and mitochondrial DNA D-loop sequencing were applied to 136 catfish specimens, collected from three populations captured for breeding in Thailand. Interestingly, extremely low inbreeding coefficients were obtained within each population, and distinct genetic diversity was observed among the three populations, indicating that their genetic origins are markedly different. This suggests that outbreeding depression by genetic admixture among currently captured populations of different origins may account for the low productivity of the North African catfish in Thailand. Genetic improvement of the North African catfish populations is required by introducing new populations whose origins are clearly known. This strategy should be systematically integrated into breeding programs to establish an ideal founder stock for selective breeding.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Questioning inbreeding: Could outbreeding affect productivity in the North African catfish in Thailand?

Patta,

Panthum,

Thatukan

et al. 2024

PLoS ONE

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“…It is a tropical and subtropical fish, with a survival water temperature range of 10 to 32 • C and an optimum growth temperature range of 25 to 30 • C [33]. This species is an economically important bottom freshwater fish widely cultured in southern China, known for its strong adaptability and tolerance [34][35][36]. However, even the well-adapted and tolerant Siluriformes have been affected to some extent by the increasing water temperature caused by global climate change [33,37].…”

Section: Introductionmentioning

confidence: 99%

Effects of Chronic Heat Stress on Growth, Apoptosis, Antioxidant Enzymes, Transcriptomic Profiles, and Immune-Related Genes of Hong Kong Catfish (Clarias fuscus)

Liu,

Tian,

Yang

et al. 2024

Animals

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Chronic heat stress can have detrimental effects on the survival of fish. This study aimed to investigate the impact of prolonged high temperatures on the growth, antioxidant capacity, apoptosis, and transcriptome analysis of Hong Kong catfish (Clarias fuscus). By analyzing the morphological statistics of C. fuscus subjected to chronic high-temperature stress for 30, 60, and 90 days, it was observed that the growth of C. fuscus was inhibited compared to the control group. The experimental group showed a significant decrease in body weight and body length compared to the control group after 60 and 90 days of high-temperature stress (p < 0.05, p < 0.01). A biochemical analysis revealed significant alterations in the activities of three antioxidant enzymes superoxide dismutase activity (SOD); catalase activity (CAT); glutathione peroxidase activity (GPx), the malondialdehyde content (MDA), and the concentrations of serum alkaline phosphatase (ALP); Aspartate aminotransferase (AST); and alanine transaminase (ALT) in the liver. TUNEL staining indicated stronger apoptotic signals in the high-temperature-stress group compared to the control group, suggesting that chronic high-temperature-induced oxidative stress, leading to liver tissue injury and apoptosis. Transcriptome analysis identified a total of 1330 DEGs, with 835 genes being upregulated and 495 genes being downregulated compared to the control group. These genes may be associated with oxidative stress, apoptosis, and immune response. The findings elucidate the growth changes in C. fuscus under chronic high temperature and provide insights into the underlying response mechanisms to a high-temperature environment.

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“…In particular, the yield of clariid catfish (Clarias) reached 94,277 tons in 2022 in Thailand [1]. Clariid species, such as walking catfish (Clarias batrachus), bighead catfish (C. macrocephalus), and whitespotted clarias (C. fuscus), are common in the global aquaculture market [2][3][4][5][6]. However, their habitat loss, overfishing, and introduction of North African catfish (C. gariepinus) through various trade channels have significantly been decreasing the populations of walking and bighead catfish.…”

Section: Introductionmentioning

confidence: 99%

Overcoming taxonomic challenges in DNA barcoding for improvement of identification and preservation of clariid catfish species

Chalermwong,

Panthum,

Wattanadilokcahtkun

et al. 2023

Genomics Inform

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DNA barcoding without assessing reliability and validity causes taxonomic errors of species identification, which is responsible for disruptions of their conservation and aquaculture industry. Although DNA barcoding facilitates molecular identification and phylogenetic analysis of species, its availability in clariid catfish lineage remains uncertain. In this study, DNA barcoding was developed and validated for clariid catfish. 2,970 barcode sequences from mitochondrial cytochrome c oxidase I (COI) and cytochrome b (Cytb) genes and D-loop sequences were analyzed for 37 clariid catfish species. The highest intraspecific nearest neighbor distances were 85.47%, 98.03%, and 89.10% for COI, Cytb, and D-loop sequences, respectively. This suggests that the Cytb gene is the most appropriate for identifying clariid catfish and can serve as a standard region for DNA barcoding. A positive barcoding gap between interspecific and intraspecific sequence divergence was observed in the Cytb dataset but not in the COI and D-loop datasets. Intraspecific variation was typically less than 4.4%, whereas interspecific variation was generally more than 66.9%. However, a species complex was detected in walking catfish and significant intraspecific sequence divergence was observed in North African catfish. These findings suggest the need to focus on developing a DNA barcoding system for classifying clariid catfish properly and to validate its efficacy for a wider range of clariid catfish. With an enriched database of multiple sequences from a target species and its genus, species identification can be more accurate and biodiversity assessment of the species can be facilitated.

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Emerging importance of bighead catfish (Clarias macrocephalus) and north African catfish (C. gariepinus) as a bioresource and their genomic perspective

Cited by 16 publications

References 80 publications

Questioning inbreeding: Could outbreeding affect productivity in the North African catfish in Thailand?

Questioning inbreeding: Could outbreeding affect productivity in the North African catfish in Thailand?

Effects of Chronic Heat Stress on Growth, Apoptosis, Antioxidant Enzymes, Transcriptomic Profiles, and Immune-Related Genes of Hong Kong Catfish (Clarias fuscus)

Overcoming taxonomic challenges in DNA barcoding for improvement of identification and preservation of clariid catfish species

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