期刊
SCIENCE
卷 364, 期 6435, 页码 52-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aav6428
关键词
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资金
- National Science Foundation [1649424, 1611975]
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [1611975] Funding Source: National Science Foundation
In multicellular organisms, the entry into meiosis is a complex process characterized by increasing meiotic specialization. Using single-cell RNA sequencing, we reconstructed the developmental program into maize male meiosis. A smooth continuum of expression stages before meiosis was followed by a two-step transcriptome reorganization in leptotene, during which 26.7% of transcripts changed in abundance by twofold or more. Analysis of cell-cycle gene expression indicated that nearly all pregerminal cells proliferate, eliminating a stem-cell model to generate meiotic cells. Mutants defective in somatic differentiation or meiotic commitment expressed transcripts normally present in early meiosis after a delay; thus, the germinal transcriptional program is cell autonomous and can proceed despite meiotic failure.
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