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Updated: Aug 1, 2026
10:23
Genome-wide Snapshot of Chromatin Regulators and States in Xenopus Embryos by ChIP-Seq
Published on: February 26, 2015
Expression pattern of novel chick T-box gene, Tbx20
1Department of Bioscience, National Cardiovascular Center Research Institute, 5-7-1 Fujishirodai, Suita, Osaka 565-8565, Japan.
Development Genes and Evolution
|February 28, 2002
Summary
Researchers identified the chick Tbx20 gene, crucial for early heart development. This T-box gene is expressed in the cardiac mesoderm, showing co-expression with Nkx2.5, a key cardiac marker.
Area of Science:
- Developmental Biology
- Molecular Biology
- Genetics
Background:
- The molecular mechanisms governing early cardiac mesoderm specification remain largely unknown.
- Identifying regulatory factors is crucial for understanding heart development.
Purpose of the Study:
- To isolate and characterize the chick H15-related T-box gene (Tbx20).
- To analyze the expression pattern of chick Tbx20 during early embryonic development.
Main Methods:
- Gene isolation and sequencing to identify chick Tbx20.
- Whole-mount in situ hybridization to determine gene expression patterns.
Main Results:
- Chick Tbx20 exhibits high homology to its counterparts in humans, mice, and zebrafish.
- Tbx20 expression initiates in the posterior lateral mesoderm and subsequently expands anteriorly.
- Tbx20 is intensively co-expressed with the cardiogenic gene Nkx2.5 in the anterior lateral mesoderm.
Conclusions:
- Chick Tbx20 is a key regulatory factor involved in early heart specification.
- The expression pattern of Tbx20 suggests its critical role in cardiac mesoderm development and patterning.
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