More specifically, this meeting will cover an in-depth analysis of transcriptional regulators and gene regulatory networks controlling emergence and fate choices in hematopoietic stem cells; transcriptional control biochemistry of specification and commitment in myeloid and lymphoid lineages; lineage-specific regulatory factors and their modes of action; hierarchy of multipotent progenitors and the gene regulatory networks that determine their fate choices; roles of environment signals in timing and lineage fidelity of cell fate decisions in early lymphoid development.