Phenotypic Diversities of Four Populations of Clarias Gariepinus (Siluriformes, Clariidae) Obtained from Ogun and Ondo State Waterbodies in South-Western Nigeria

Ola-Oladimeji, Folasade A.; Oso, J. A.; Oladimeji, Tofunmi Elizabeth; Idowu, E. O.; Adeleke, K.; Urihe, F. O.

doi:10.1515/vzoo-2017-0034

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…A principal component analysis (PCA) provides adequate data degradation and feature extraction. Moreover, this approach can reveal the correlation, direction of change, and importance of the data [34,35]. In this study, the difference in the principal components between the populations of G. dybowskii from the Turks River and Manas River was noticeable.…”

Section: Discussionmentioning

confidence: 59%

Analyses of Morphological Differences between Geographically Distinct Populations of Gymnodiptychus dybowskii

Hu,

Yao,

Wang

et al. 2024

Water

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To study the morphological differences between and the evolutionary mechanisms driving the differentiation of geographically distinct populations of Gymnodiptychus dybowskii, 158 fish were collected from the Turks River and the Manas River in Xinjiang from 2020 to 2021 with the approval of the Academic Ethics Committee. The morphological characteristics of the fish were assessed using classical fish ecology methods such as traditional morphometric measurements and the framework approach. The results showed that the morphological characteristics of the populations in the Turks River and Manas River were significantly different; a one-way ANOVA revealed 22 highly significant differences (p < 0.01) and 1 significant difference (p < 0.05) among the 33 morphological traits of the observed populations, and a principal component analysis revealed that there was no overlap between the two populations of G. dybowskii. The main characteristics associated with principle component 1 were the terminus of the dorsal fin to the ventral origin of the caudal fin (D—F), the dorsal origin of the caudal fin to the origin of the anal fin (E—H), and the insertion of the pectoral fin to the terminus of the pectoral fin (J—K); the main factors associated with principal component 2 were the body height (BD), the terminus of the dorsal fin to the insertion of the pelvic fin (D—I), the caudal peduncle height (CPH), and the tip of the snout to the last end of the frontal maxilla (A—B); and the main traits associated with principle component 3 were the terminus of the anal fin to the origin of the anal fin (G—H), the body width (BW), the insertion of the pelvic fin to the terminus of the pelvic (I—L), the insertion of the pectoral fin to the terminus of the pectoral fin (J—K), and the insertion of the pelvic fin to the insertion of the pectoral fin (I—J). An OPLS-DA revealed that the two populations could be wholly separated and that the intergroup growth traits of the Manas River population were different and significantly greater than those of the Turks River population. The discriminant functions of the Turks River and Manas River populations of G. dybowskii were as follows: YT = −432.033 + 1787.748X1 + 826.517X2 + 249.002X3 + 1183.050X4 + 554.934X5 + 999.296X6 + 627.428X7; YM = −569.819 + 2041.044X1 + 344.942X2 + 333.737X3 + 940.512X4 + 348.222X5 + 1167.770X6 + 1015.904X7. According to a coefficient of variation analysis, a total of nine traits, namely, EI/BL, C-D/BL, E-F/BL, F-H/BL, H-I/BL, C-J/BL, D-I/BL, D-H/BL, and D-F/BL, had a CD > 1.28, indicating that the differences in these nine traits had reached the subspecies level. The results showed that G. dybowskii significantly differed between the two geographically distinct populations in the Turks River and the Manas River and have differentiated to the subspecies level. This study provides a basis for a better investigation of the population structure of highland endemic fishes and the mechanisms by which they diverged and lays a foundation for developing and utilizing germplasm resources from endemic fishes in Xinjiang.

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Section: Discussionmentioning

confidence: 59%

Analyses of Morphological Differences between Geographically Distinct Populations of Gymnodiptychus dybowskii

Hu,

Yao,

Wang

et al. 2024

Water

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“…Several morphological studies have been carried out on assessing the variations in Clarias gariepinus (Turan et al, 2005;Solomon et al, 2015;Ola-Oladimeji et al, 2017). However, most morphological traits are polygenic, quantitative or continuous characters and their expression is infl uenced by environmental conditions (Lombard et al, 2001;Torkpo et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Heterogeneity Studies of Wild Clarias gariepinus (Osteichthyes, Clariidae) Using SDS-Polyacrylamide Gel Electrophoresis

Ola-Oladimeji¹,

Idowu²,

Adewumi³

et al. 2018

Vestnik Zoologii

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This study determined the genetic variations that exist in Clarias gariepinus obtained from two natural populations in Nigeria, using their serum protein profiles. A total of 51 samples of Clarias gariepinus collected from Ado-Ekiti and Ilesa were used for this experiment. Blood was extracted from the caudal vein of each individual fish and electrophoresis was performed based on standard methods. Following this, gel images were taken, scored and subjected to classical cluster analysis using Bray-Curtis similarity index. This showed the presence of variations in C. gariepinus between the studied populations and samples from Ado-Ekiti reservoir displayed more diversity than those from Ilesa. Hence, this showed the feasibility for selecting samples from Ado- Ekiti to improve culture of C. gariepinus in further breeding studies.

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Genetic origin and morphometric traits of invasive African catfish (Clarias gariepinus) in a protected area in southeastern Brazil

Nóbrega,

Dumith,

Salgueiro

et al. 2024

Environ Biol Fish

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Phenotypic Diversities of Four Populations of Clarias Gariepinus (Siluriformes, Clariidae) Obtained from Ogun and Ondo State Waterbodies in South-Western Nigeria

Cited by 4 publications

References 10 publications

Analyses of Morphological Differences between Geographically Distinct Populations of Gymnodiptychus dybowskii

Analyses of Morphological Differences between Geographically Distinct Populations of Gymnodiptychus dybowskii

Heterogeneity Studies of Wild Clarias gariepinus (Osteichthyes, Clariidae) Using SDS-Polyacrylamide Gel Electrophoresis

Genetic origin and morphometric traits of invasive African catfish (Clarias gariepinus) in a protected area in southeastern Brazil

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