In further hematopoietic results of RNA‐sequencing of kidney marrow, markers of neutrophils were largely down‐regulated, such as coro1a, mpx/mpo, spi1/pu.1, cebpα, cebp1, and lyz/lysozyme C in the tead1a mutants, which implied the neutropenia of bone marrow origin (Figure 4D, green arrow). Here, SPI1 is linked to neutropenia.