Lineage tracing meets single-cell omics: opportunities and challenges

Area of Science:

• Developmental Biology
• Stem Cell Biology
• Genomics

Background:

• Understanding cell differentiation is crucial for developmental and stem cell biology.
• High-throughput single-cell sequencing has enabled detailed transcriptional atlases of tissues and embryos.
• Sequencing-based lineage tracing can now map clonal relationships and mitotic histories.

Purpose of the Study:

• To review recent progress in mapping cell developmental history.
• To discuss challenges and opportunities in integrating molecular and cell division data.
• To explore the synthesis of complementary cellular history representations into models of cell differentiation.

Main Methods:

• High-throughput single-cell sequencing for transcriptional atlases.
• Sequencing-based lineage-tracing methods for clonal relationships.
• Integration of transcriptional and lineage data.

Main Results:

• Construction of comprehensive transcriptional atlases of millions of cells.
• Mapping of clonal relationships onto cellular landscapes.
• Detailed comparisons between molecular and mitotic histories are now possible.

Conclusions:

• Synthesizing transcriptional and lineage data offers powerful integrated models of cell differentiation.
• Advances in single-cell technologies are revolutionizing our understanding of ontogeny.
• Further integration of these complementary data types presents significant opportunities for future research.