Developmental stages until hatching of the Lake Victoria cichlid Haplochromis piceatus (Teleostei: Cichlidae)

Jong, Ilse M.L. de; Witte, Frans; Richardson, Michael K.

doi:10.1002/jmor.10716

Cited by 18 publications

(20 citation statements)

References 51 publications

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“…For example, observations of embryos of Victoria Cichlid ( Haplochromis piceatus ) revealed that anal fin condensation occurs first, followed by dorsal fin condensation (de Jong et al, 2009); however, the dorsal fin rays appear first in larvae of Nile tilapia, which has similar anal and dorsal fin ray morphology with H. piceatus (Fujimura and Okada, 2007). Thus, the order of appearance of mesenchymal condensation and fin rays in dorsal and anal fins are inconsistent in these species.…”

Section: Discussionmentioning

confidence: 99%

Postembryonic staging of wild‐type goldfish, with brief reference to skeletal systems

Chang

Liu

et al. 2015

Developmental Dynamics

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Background: Artificial selection of postembryonic features is known to have established morphological variation in goldfish (Carassius auratus). Although previous studies have suggested that goldfish and zebrafish are almost directly comparable at the embryonic level, little is known at the postembryonic level. Results: Here, we categorized the postembryonic developmental process in the wild‐type goldfish into 11 different stages. We also report certain differences between the postembryonic developmental processes of goldfish and zebrafish, especially in the skeletal systems (scales and median fin skeletons), suggesting that postembryonic development underwent evolutionary divergence in these two teleost species. Conclusions: Our postembryonic staging system of wild‐type goldfish paves the way for careful and appropriate comparison with other teleost species. The staging system will also facilitate comparative ontogenic analyses between wild‐type and mutant goldfish strains, allowing us to closely study the relationship between artificial selection and molecular developmental mechanisms in vertebrates. Developmental Dynamics 244:1485–1518, 2015. © 2015 Wiley Periodicals, Inc.

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Section: Discussionmentioning

confidence: 99%

Postembryonic staging of wild‐type goldfish, with brief reference to skeletal systems

Chang

Liu

et al. 2015

Developmental Dynamics

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“…Study of the development of multiple taxa can illuminate our understanding of developmental patterns and mechanisms. Among teleost fishes, there are a number of species that have been developed as models (e.g., zebrafish, sticklebacks, medaka, cichlids), but these species do not begin to encompass the diversity of phenotypes represented by fishes (De Jong, Witte, & Richardson, ; Fujimura & Okada, ; Iwamatsu, ; Kimmel, Ballard, Kimmel, Ullmann, & Schilling, ; Swarup, ). For instance, skull morphology is an ecologically critical trait that varies enormously across teleost fishes, but among the currently established teleost models only cichlids have evolved substantial skull morphological diversity (Albertson & Kocher, ; Liem, ).…”

Section: Introductionmentioning

confidence: 99%

An embryonic staging series up to hatching for Cyprinodon variegatus: An emerging fish model for developmental, evolutionary, and ecological research

Lencer

McCune

2018

Journal of Morphology

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Using multiple taxa to research development is necessary for making general conclusions about developmental patterns and mechanisms. We present a staging series for Cyprinodon variegatus as a basis for further study of the developmental biology of fishes in the genus Cyprinodon and for comparative work on teleost fishes beyond the standard models. Cyprinodon are small, euryhaline fishes, widely distributed in fresh, brackish, and hypersaline waters of southern and eastern North America. Cyprinodontids are closely related to fundulids, providing a comparative reference point to the embryological model, Fundulus heteroclitus. Ecologists and evolutionary biologists commonly study Cyprinodon, and we have been using Cyprinodon to study skull variation and its genetic basis among closely related species. We divided embryonic development of C. variegatus into 34 morphologically identifiable stages. We reference our staging series to that already defined for a related model species, Oryzias latipes (medaka) that is studied by a large community of researchers. We provide a description of the early chondrogenesis and ossification of skull and caudal fin bones during the latter stages of embryonic development. We show that Cyprinodon are tractable for studying development. Eggs can be obtained easily from breeding pairs and our study provides a staging system to facilitate future developmental studies.

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“…Haplochromis piceatus Greenwood & Gee 1969 is used as a typical suction feeding species (ecomorph) with a long, pointed snout and elongate, gracile jaws. The diet of this zooplanktivorous species includes cladocerans, copepods, insect larvae and pupae [30], [31]. In contrast, Haplochromis fischeri Seegers 2008 ( = Haplochromis sauvagei non Pfeffer 1896: Greenwood 1980) is a typical biter with short and stout jaws.…”

Section: Introductionmentioning

confidence: 99%

Dealing with Food and Eggs in Mouthbrooding Cichlids: Structural and Functional Trade-Offs in Fitness Related Traits

et al. 2012

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BackgroundAs in any vertebrate, heads of fishes are densely packed with functions. These functions often impose conflicting mechanical demands resulting in trade-offs in the species-specific phenotype. When phenotypical traits are linked to gender-specific parental behavior, we expect sexual differences in these trade-offs. This study aims to use mouthbrooding cichlids as an example to test hypotheses on evolutionary trade-offs between intricately linked traits that affect different aspects of fitness. We focused on the oral apparatus, which is not only equipped with features used to feed and breathe, but is also used for the incubation of eggs. We used this approach to study mouthbrooding as part of an integrated functional system with diverging performance requirements and to explore gender-specific selective environments within a species.Methodology/Principal FindingsBecause cichlids are morphologically very diverse, we hypothesize that the implications of the added constraint of mouthbrooding will primarily depend on the dominant mode of feeding of the studied species. To test this, we compared the trade-off for two maternal mouthbrooding cichlid species: a “suction feeder” (Haplochromis piceatus) and a “biter” (H. fischeri). The comparison of morphology and performance of both species revealed clear interspecific and intersex differences. Our observation that females have larger heads was interpreted as a possible consequence of the fact that in both the studied species mouthbrooding is done by females only. As hypothesized, the observed sexual dimorphism in head shape is inferred as being suboptimal for some aspects of the feeding performance in each of the studied species. Our comparison also demonstrated that the suction feeding species had smaller egg clutches and more elongated eggs.Conclusions/SignificanceOur findings support the hypothesis that there is a trade-off between mouthbrooding and feeding performance in the two studied haplochromine cichlids, stressing the importance of including species-specific information at the gender level when addressing interspecific functional/morphological differences.

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Developmental stages until hatching of the Lake Victoria cichlid Haplochromis piceatus (Teleostei: Cichlidae)

Cited by 18 publications

References 51 publications

Postembryonic staging of wild‐type goldfish, with brief reference to skeletal systems

Postembryonic staging of wild‐type goldfish, with brief reference to skeletal systems

An embryonic staging series up to hatching for Cyprinodon variegatus: An emerging fish model for developmental, evolutionary, and ecological research

Dealing with Food and Eggs in Mouthbrooding Cichlids: Structural and Functional Trade-Offs in Fitness Related Traits

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