Vertebrae Morphometric Measurement and Ca/P Levels of Different Age European Seabass (Dicentrarchus labrax)

Nikiforidou, Vasiliki; Zaoutsos, Stefanos; Vlahos, Nikolaos; Berillis, Panagiotis

doi:10.3390/fishes5040037

Cited by 5 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The X‐ray images were also used to investigate any pleiotropic effects on vertebrae numbers. To quantify vertebrae numbers, both the abdominal (vertebrae bearing ribs) and caudal vertebrae (with hemal spine), according to Nikiforidou et al (2020) were counted. In addition, the X‐ray images allowed us to count the proximal pterygiophores of the dorsal, anal, and caudal fins of each specimen.…”

Section: Methodsmentioning

confidence: 99%

“…The distal and proximal insertion of the arrector ventralis pelvicus (ARRVP), arrector dorsalis pelvicus (ARRDP), abductor superficialis pelvicus (ABSP), abductor profundus pelvicus (ABPP), adductor superficialis pelvicus (ADSP), adductor profundus pelvicus (ADPP) protactor ischii (PI), and retractor ischii (RI) (Figure2) were examined followingWinterbottom (1974) andSiomava and Diogo (2017).The X-ray images were also used to investigate any pleiotropic effects on vertebrae numbers. To quantify vertebrae numbers, both the abdominal (vertebrae bearing ribs) and caudal vertebrae (with hemal spine), according toNikiforidou et al (2020) were counted. In addition, the X-ray images allowed us to count the proximal pterygiophores of the dorsal, anal, and caudal fins of each specimen.As we initially hypothesized that the loss of the pelvic fins might influence the pectoral fin morphology, the right pectoral girdle and fin of 20 specimens (n = 10 normal; n = 10 pelvic finless) were carefully removed from the fish.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Morphological description of spontaneous pelvic fin loss in a neotropical cichlid fish

Ehemann,

Meyer,

Hulsey

2023

Journal of Morphology

View full text Add to dashboard Cite

Pelvic fins are a characteristic structure of the vertebrate Bauplan. Yet, pelvic fin loss has occurred repeatedly across a wide diversity of other lineages of tetrapods and at least 48 times in teleost fishes. This pelvic finless condition is often associated with other morphological features such as body elongation, loss of additional structures, and bilateral asymmetry. However, despite the remarkable diversity in the several thousand cichlid fish species, none of them are characterized by the complete absence of pelvic fins. Here, we examined the musculoskeletal structure and associated bilateral asymmetry in Midas cichlids (Amphilophus cf. citrinellus) that lost their pelvic fins spontaneously in the laboratory. Due to this apparent mutational loss of the pelvic girdle and fins, the external and internal anatomy are described in a series of “normal” Midas individuals and their pelvic finless sibling tankmates. First, other traits associated with teleost pelvic fin loss, the genetic basis of pelvic fin loss, and the potential for pleiotropic effects of these genes on other traits in teleosts were all reviewed. Using these traits as a guide, we investigated whether other morphological differences were associated with the pelvic girdle/fin loss. The mean values of the masses of muscle of the pectoral fin, fin ray numbers in the unpaired fins, and oral jaw tooth numbers did not differ between the two pelvic fin morphotypes. However, significant differences in meristic values of the paired traits assessed were observed for the same side of the body between morphotypes. Notably, bilateral asymmetry was found exclusively for the posterior lateral line scales. Finally, we found limited evidence of pleiotropic effects, such as lateral line scale numbers and fluctuating asymmetry between the Midas pelvic fin morphotypes. The fast and relatively isolated changes in the Midas cichlids suggest minor but interesting pleiotropic effects could accompany loss of cichlid pelvic fins.

show abstract

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

Morphological description of spontaneous pelvic fin loss in a neotropical cichlid fish

Ehemann,

Meyer,

Hulsey

2023

Journal of Morphology

View full text Add to dashboard Cite

show abstract

Meristic co‐evolution and genomic co‐localization of lateral line scales and vertebrae in Central American cichlid fishes

Ehemann,

Franchini,

Meyer

et al. 2024

Ecology and Evolution

View full text Add to dashboard Cite

Meristic traits are often treated as distinct phenotypes that can be used to differentiate and delineate recently diverged species. For instance, the number of lateral line scales and vertebrae, two traits that vary substantially among Neotropical Heroine cichlid species, have been previously suggested to co‐evolve. These meristic traits could co‐evolve due to shared adaptive, developmental, or genetic factors. If they were found to be genetically or developmentally non‐independent, this might require a more general re‐evaluation of their role in evolutionary or taxonomic studies. We expanded a previous analysis of correlated evolution of meristic traits (lateral line scales and vertebrae counts) in these fishes to include a range of phylogenetic reconstructions as well as the analyses of 13 Nicaraguan Midas cichlid species (Amphilophus spp.). Additionally, we performed qualitative traits locus (QTL) mapping in a F2 laboratory‐reared hybrid population from two ecologically divergent Midas cichlid fish species to discover and evaluate whether genomic co‐segregation might explain the observed patterns of meristic co‐evolution. Meristic values for these traits were found to morphologically differentiate some species of the Midas cichlid adaptive radiation. Our QTL analysis pinpointed several genomic regions associated with divergence in these traits and highlighted the potential for genomic co‐segregation of the lateral line and vertebrae numbers on two chromosomes. Further, our phylogenetic comparative analyses consistently recovered a significant positive evolutionary correlation between the counts of lateral line scale and vertebrae numbers in Neotropical cichlids. Hence, the findings of genomic co‐segregation could partially explain the co‐evolution of these two meristic traits in these species. Continuing to unravel the genetic architecture governing meristic divergence helps to better understand both trait correlations and the utility of meristic traits in taxonomic diagnoses and how traits in phenotypes might be expected to co‐evolve.

show abstract

Effects of dietary replacement of fish oil with different lipid sources on growth, fatty acid composition, mineral content and expression levels desaturase and elongase genes in rainbow trout (Oncorhynchus mykiss)

Aksakal

Vural

Tunç

et al. 2023

Aquaculture Reports

View full text Add to dashboard Cite

Vertebrae Morphometric Measurement and Ca/P Levels of Different Age European Seabass (Dicentrarchus labrax)

Cited by 5 publications

References 24 publications

Morphological description of spontaneous pelvic fin loss in a neotropical cichlid fish

Morphological description of spontaneous pelvic fin loss in a neotropical cichlid fish

Meristic co‐evolution and genomic co‐localization of lateral line scales and vertebrae in Central American cichlid fishes

Effects of dietary replacement of fish oil with different lipid sources on growth, fatty acid composition, mineral content and expression levels desaturase and elongase genes in rainbow trout (Oncorhynchus mykiss)

Contact Info

Product

Resources

About