ArticleDevelopmental biology2011
Identification of an evolutionarily conserved regulatory element of the zebrafish col2a1a gene.
Article in Developmental biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.
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Who cites it
84 citing papers in PubMed, 146 citations in OpenAlex.
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- Tissue-Specific Expression of the EWSR1::FLI1 Fusion Protein IdentifiesInternational journal of molecular sciences · 2026Article
- Stage- and cluster-specific regulation of chondrogenic gene programs by Sox9 in mouse embryonic limb buds.iScience · 2026Article
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- A conserved transcription factor regulatory program promotes tendon fate.Developmental cell · 2024Article
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- Early stress exposure on zebrafish development: effects on survival, malformations and molecular alterations.Fish physiology and biochemistry · 2024Article
- CHD7 regulates craniofacial cartilage development via controlling HTR2B expression.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2024Article
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- Identification and functional characteristics of a novel splicing heterozygote variant ofFrontiers in genetics · 2024Article
- Contribution of Signal Transducer and Activator of Transcription 3 (STAT3) to Bone Development and Repair.International journal of molecular sciences · 2023Article
- COL11A2 as a candidate gene for vertebral malformations and congenital scoliosis.Human molecular genetics · 2023Article
- Exposure to the persistent organic pollutant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD, dioxin) disrupts development of the zebrafish inner ear.Aquatic toxicology (Amsterdam, Netherlands) · 2023Article
24 more citing papers are in PubMed but not listed here.
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
Zebrafish (Danio rerio) is an excellent model organism for the study of vertebrate development including skeletogenesis. Studies of mammalian cartilage formation were greatly advanced through the use of a cartilage specific regulatory element of the Collagen type II alpha 1 (Col2a1) gene. In an effort to isolate such an element in zebrafish, we compared the expression of two col2a1 homologues and found that expression of col2a1b, a previously uncharacterized zebrafish homologue, only partially overlaps with col2a1a. We focused our analysis on col2a1a, as it is expressed in both the stacked chondrocytes and the perichondrium. By comparing the genomic sequence surrounding the predicted transcriptional start site of col2a1a among several species of teleosts we identified a small highly conserved sequence (R2) located 1.7 kb upstream of the presumptive transcriptional initiation site. Interestingly, neither the sequence nor location of this element is conserved between teleost and mammalian Col2a1. We generated transient and stable transgenic lines with just the R2 element or the entire 1.7 kb fragment 5' of the transcriptional initiation site. The identified regulatory elements enable the tracking of cellular development in various tissues by driving robust reporter expression in craniofacial cartilage, ear, notochord, floor plate, hypochord and fins in a pattern similar to the expression of endogenous col2a1a. Using a reporter gene driven by the R2 regulatory element, we analyzed the morphogenesis of the notochord sheath cells as they withdraw from the stack of initially uniform cells and encase the inflating vacuolated notochord cells. Finally, we show that like endogenous col2a1a, craniofacial expression of these reporter constructs depends on Sox9a transcription factor activity. At the same time, notochord expression is maintained after Sox9a knockdown, suggesting that other factors can activate expression through the identified regulatory element in this tissue.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.