Metamorphosis in Teleosts

McMenamin, Sarah K.; Parichy, David M.

doi:10.1016/b978-0-12-385979-2.00005-8

Cited by 155 publications

(149 citation statements)

References 183 publications

(141 reference statements)

Supporting

Mentioning

145

Contrasting

Order By: Relevance

“…Metamorphosis, i.e. the transition from larval to juvenile stage, is also regulated by THs (McMenamin and Parichy, 2013;Paris and Laudet, 2008;Power et al, 2001) and involves morphological, physiological and behavioural changes (Dufour et al, 2012) The mechanisms and genes involved have still not yet been fully elucidated but it has been hypothesized that a disruption of thyroid system influences the fish metamorphosis, and thus the viability of larvae (Power et al, 2001). These early developmental stages might be the most sensitive to environmental toxicants that target the thyroid axis.…”

Section: Introductionmentioning

confidence: 99%

Triclosan exposure results in alterations of thyroid hormone status and retarded early development and metamorphosis in Cyprinodon variegatus

et al. 2016

View full text Add to dashboard Cite

a b s t r a c tThyroid hormones are critically involved in somatic growth, development and metamorphosis of vertebrates. The structural similarity between thyroid hormones and triclosan, an antimicrobial compound widely employed in consumer personal care products, suggests triclosan can have adverse effects on the thyroid system. The sheepshead minnow, Cyprinodon variegatus, is now used in ecotoxicological studies that have recently begun to focus on potential disruption of the thyroid axis by endocrine disrupting compounds. Here, we investigate the in vivo effects of exposure to triclosan (20, 50, and 100 g L −1 ) on the thyroid system and the embryonic and larval development of C. variegatus. Triclosan exposure did not affect hatching success, but delayed hatching time by 6-13 h compared to control embryos. Triclosan exposure affected the ontogenetic variations of whole body thyroid hormone concentrations during the larval phase. The T3 peak around 12-15 dph, described to be indicative for the metamorphosis climax in C. variegatus, was absent in triclosan-exposed larvae. Triclosan exposure did not produce any deformity or allometric repatterning, but a delayed development of 18-32 h was observed. We conclude that the triclosan-induced disruption of the thyroid system delays in vivo the start of metamorphosis in our experimental model. We observed a global developmental delay of 24-45 h, equivalent to 4-7% prolongation of the developmental time in C. variegatus. The costs of delayed metamorphosis can lead to reduction of juvenile fitness and could be a determining factor in the outcome of competitive interactions.

show abstract

Section: Introductionmentioning

confidence: 99%

Triclosan exposure results in alterations of thyroid hormone status and retarded early development and metamorphosis in Cyprinodon variegatus

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Indeed, it is well established that TH controls metamorphosis in all chordates [38]. TH treatment induces a precocious metamorphosis and a surge of TH is observed at the climax of metamorphosis in all the investigated species [26,39,40]. In lamprey however, it is a decrease of TH, instead of an increase, that triggers metamorphosis [27,28,41].…”

Section: Discussionmentioning

confidence: 99%

New Insights into Vertebrate Thyroid Hormone Receptor Evolution

Holzer

Laudet

2017

Nuclear Receptor Research

View full text Add to dashboard Cite

Abstract. The lamprey Petromyzon marinus belongs to the agnathans, the oldest vertebrate lineage from which jawed vertebrates diverged about 500 million years ago. Therefore, it holds a key phylogenetic position to understand the evolution of vertebrates. As in jawed vertebrates, two thyroid hormone receptors have been described in lamprey. These receptors, referred to as TR1 and TR2, behave as genuine TRs but are considered as an independent duplications when compared to the orthologs characterized in jawed vertebrates, TR and TR . Here, we show that the lamprey genome contains two additional TR sequences. Their assignment to bona fide thyroid hormone receptors is supported by sequence alignments and phylogenetic reconstructions. This led us to revisit the phylogeny of thyroid hormone receptors and to detect an acceleration of their evolutionary rates at the basis of vertebrates. Our analysis therefore suggests that major evolutionary shifts occurred at the receptor level just when the modern synthesis of thyroid hormone was established during early vertebrate evolution.

show abstract

“…Post-embryonic zebrafish development and growth are accompanied by metamorphosis, during which irreversible morphological and physiological changes occur as the animal transitions from larval to juvenile and adult forms (McMenamin & Parichy, 2013). The diversity of traits that undergo metamorphic changes is vast, yet, only a limited number of them have been studied (McMenamin & Parichy, 2013).…”

Section: Prospectusmentioning

confidence: 99%

Best practices for germ-free derivation and gnotobiotic zebrafish husbandry

Melançon

Canny

Sichel

et al. 2017

Methods in Cell Biology

141

118

View full text Add to dashboard Cite

All animals are ecosystems with resident microbial communities, referred to as microbiota, which play profound roles in host development, physiology, and evolution. Enabled by new DNA sequencing technologies, there is a burgeoning interest in animal–microbiota interactions, but dissecting the specific impacts of microbes on their hosts is experimentally challenging. Gnotobiology, the study of biological systems in which all members are known, enables precise experimental analysis of the necessity and sufficiency of microbes in animal biology by deriving animals germ-free (GF) and inoculating them with defined microbial lineages. Mammalian host models have long dominated gnotobiology, but we have recently adapted gnotobiotic approaches to the zebrafish (Danio rerio), an important aquatic model. Zebrafish offer several experimental attributes that enable rapid, large-scale gnotobiotic experimentation with high replication rates and exquisite optical resolution. Here we describe detailed protocols for three procedures that form the foundation of zebrafish gnotobiology: derivation of GF embryos, microbial association of GF animals, and long-term, GF husbandry. Our aim is to provide sufficient guidance in zebrafish gnotobiotic methodology to expand and enrich this exciting field of research.

show abstract

Metamorphosis in Teleosts

Cited by 155 publications

References 183 publications

Triclosan exposure results in alterations of thyroid hormone status and retarded early development and metamorphosis in Cyprinodon variegatus

Triclosan exposure results in alterations of thyroid hormone status and retarded early development and metamorphosis in Cyprinodon variegatus

New Insights into Vertebrate Thyroid Hormone Receptor Evolution

Best practices for germ-free derivation and gnotobiotic zebrafish husbandry

Contact Info

Product

Resources

About