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However, transcriptome dynamics of this maternal\/filial interface remain largely unexplored. To address this gap, we conducted high\u2010temporal\u2010resolution RNA sequencing of the basal and upper kernel regions between 4 and 32\u2009days after pollination and deeply analyzed transcriptome dynamics of the maternal\/filial interface. Utilizing 790 specifically and highly expressed genes in the basal region, we performed the gene ontology (GO) term and weighted gene co\u2010expression network analyses. In the early\u2010stage basal region, we identified five MADS\u2010box transcription factors (TFs) as hubs. Their homologs have been demonstrated as pivotal regulators at the maternal\/filial interface of rice or Arabidopsis, suggesting their potential roles in maize kernel development. In the filling\u2010stage basal region, numerous GO terms associated with transcriptional regulation and transporters are significantly enriched. Furthermore, we investigated the molecular function of three hub TFs. Through genome\u2010wide DNA affinity purification sequencing combined with promoter transactivation assays, we suggested that these three TFs act as regulators of 10 basal\u2010specific transporter genes involved in the transfer of sugars, amino acids, and ions. This study provides insights into transcriptomic dynamic and regulatory modules of the maternal\/filial interface. In the future, genetic investigation of these hub regulators must advance our understanding of maternal\/filial interface development and function.<\/jats:p>","DOI":"10.1111\/tpj.16733","type":"journal-article","created":{"date-parts":[[2024,3,29]],"date-time":"2024-03-29T08:55:54Z","timestamp":1711702554000},"page":"2124-2140","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Toward unveiling transcriptome dynamics and regulatory modules at the maternal\/filial interface of developing maize kernel"],"prefix":"10.1111","volume":"118","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3040-7106","authenticated-orcid":false,"given":"Juan","family":"He","sequence":"first","affiliation":[{"name":"School of Life Sciences, Division of Life Sciences and Medicine University of Science and Technology of China  Hefei 230027 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