Role of thyroid hormone in the ontogeny and morphological diversification of Barbus intermedius sensu Banister, 1973 of Lake Tana in Ethiopia

Shkil, F. N.; Borisov, V. B.; Abdissa, Belay; Смирнов, С. В.

doi:10.1134/s1062360410060044

Cited by 18 publications

(15 citation statements)

References 34 publications

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“…3), phenomenon occasionally recorded and described in fishes from different phyletic lineages (Gudger, 1929; Berra and Au, 1981). Also, changes in TH level influence mouth position: barbs reared under hypothyroid conditions had superior mouths instead of terminal ones characteristic for this species (Shkil et al., 2010c).…”

Section: Resultsmentioning

confidence: 99%

“…Neither hyper‐ nor hypothyroidism change significantly the sequence of development of the cartilaginous endoskeletal supports, the radials. However, high hormone level causes their premature ossification and promotes the much earlier appearance of fin rays, the lepidotrichia (Shkil et al., 2010c). It also results in the accelerated growth, drastic curving, and sometimes distal fusion of fin ray segments (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Effects and consequences of TH alterations on development of cyprinid squamation have been previously described (Smirnov et al., 2006; Smirnov and Levin, 2007; Shkil et al., 2010c; Levin, 2011). Our investigation of zebrafish development confirms these previous data indicating that hyperthyroidism leads to the premature appearance of scales and their reduced number in adult fish, whereas hypothyroidism causes the delayed appearance and increased number of scales.…”

Section: Resultsmentioning

confidence: 99%

“…Development of squamation shows a pronounced reaction to changes in TH level in cyprinids. Typically, it is drastically accelerated by high TH level and is retarded under low TH conditions (Smirnov et al., 2006; Levin, 2010, 2011; Shkil et al., 2010c).…”

Section: Discussionmentioning

confidence: 99%

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Thyroid hormone in skeletal development of cyprinids: effects and morphological consequences

Shkil

Капитанова

Borisov

et al. 2012

Journal of Applied Ichthyology

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Summary The effects of thyroid hormone (TH) level changes on skeletal development were studied in cyprinids Labeobarbus intermedius (Barbinae) and Danio rerio (Danioninae). TH was revealed to influence development of a skull, axial skeleton, paired fins and girdles, and squamation. Usually, high TH‐level promotes the premature onset and acceleration of ontogenetic processes, whereas TH‐deficiency delays and retards them. However, skeletal elements differ in TH‐responsiveness. Alterations of TH level induce developmental changes in some structures but do not cause any changes in others. As a result, the normal sequence of ontogenetic events and the temporal interrelations between ontogenetic processes undergo changes resulting in changes in adult morphology.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Thyroid hormone in skeletal development of cyprinids: effects and morphological consequences

Shkil

Капитанова

Borisov

et al. 2012

Journal of Applied Ichthyology

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“…Offsprings from two parent pairs of L. brevicephalus , four pairs of L. intermedius , and one parent pair of L. megastoma were received. Artificially fertilized (via dry method) eggs from all crosses were transferred to indoor aquaria (350–400 eggs per aquarium) and reared under standard conditions as previously described (Shkil et al., 2010). These rearing conditions were conducive to growth and survival: mortality following hatching and through 2 months of posthatching was less than 10%.…”

Section: Methodsmentioning

confidence: 99%

Heterochronies in skull development of Lake Tana large African barbs (Labeobarbus; Cyprinidae; Teleostei)

Смирнов

Borisov

Abdissa

et al. 2012

Journal of Applied Ichthyology

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Summary Large African barbs (genus Labeobarbus) of Lake Tana (Ethiopia) form a species flock, which includes 15 species differing in biology, ecology, and shape features, including skull proportions. Early craniogenesis was studied in three species of Lake Tana barbs: L. intermedius, a proposed ancestor of Tana species flock, L. brevicephalus, a small‐sized and early‐maturating barb, and L. megastoma, a large‐sized, piscivorous species. The general sequence of cranial cartilage and bone appearance is the same for the barb species studied. However, they differ greatly in temporal pattern of craniogenesis. As compared to L. intermedius, bony skull development is accelerated relative to chondrocranial development in L. brevicephalus and retarded in L. megastoma. These differences in temporal pattern of craniogenesis are proposed to account for the different cranial proportions displayed by these barbs.

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Anatomical Assessment of the Adult Skeleton of Zebrafish Reared Under Different Thyroid Hormone Profiles

Keer

Cohen

May

et al. 2019

The Anatomical Record

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Thyroid hormone (TH) directs the growth and maintenance of tissues throughout the body during development and into adulthood, and plays a particularly important role in proper ossification and homeostasis of the skeleton. To better understand the roles of TH in the skeletogenesis of a vertebrate model, and to define areas of the skeleton that are particularly sensitive to developmental TH, we examined the effects of hypo-and hyperthyroidism on skeletal development in zebrafish. Performing a bone-by-bone anatomical assessment on the entire skeleton of adult fish, we found that TH is required for proper ossification, growth, morphogenesis, and fusion of numerous bones. We showed that the pectoral girdle, dermatocranium, Weberian apparatus, and dentary are particularly sensitive to TH, and that TH affects development of skeletal element regardless of bone type and developmental origin. Indeed, the hormone does not universally promote ossification: we found that developmental TH prevents ectopic ossification in multiple thin bones and within connective tissue of the jaw. In all, we found that TH regulates proper morphogenesis and ossification in the majority of zebrafish bones, and that the requirement for the hormone extends across bone types and developmental profiles.

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Role of thyroid hormone in the ontogeny and morphological diversification of Barbus intermedius sensu Banister, 1973 of Lake Tana in Ethiopia

Cited by 18 publications

References 34 publications

Thyroid hormone in skeletal development of cyprinids: effects and morphological consequences

Thyroid hormone in skeletal development of cyprinids: effects and morphological consequences

Heterochronies in skull development of Lake Tana large African barbs (Labeobarbus; Cyprinidae; Teleostei)

Anatomical Assessment of the Adult Skeleton of Zebrafish Reared Under Different Thyroid Hormone Profiles

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