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<p>Groundnut, the world's most important oil crop, has pods in soil despite blossoms above ground. Peanuts mature unevenly, requiring a balance between maturity and yield. Comparative transcriptome, proteome, and metabolome analyses can help understand cellular processes. Therefore, the proposed study aimed to use a transcriptome dynamics approach in <i>Arachis hypogaea</i> ssp. virginia bunch during flower development. Transcriptomics research examined groundnut flower development gene expression profiles using high-throughput sequencing on three vegetative tissues and various stages. Results showed downregulation of specific genes during bud development and upregulation later, providing insight into potential gene activities in all groundnut samples. The findings indicated that auxin response factor 2A protein (ARF2-A_2) was generally upregulated in buds, with a slight shift in expression observed in flowers, signifying floral organ abscission and positive regulation of flower development. In contrast, BNH protein pectin esterase, which is similar to pollen-specific protein (AT3G13400), was downregulated in pegs and buds but highly upregulated in flowers that are present at the mature pollen stage (anthesis). Dehydrin protein (COR47) was found to be downregulated in buds and flowers and significantly upregulated in pegs, which symbolize the defense response against fungus. The understanding of the precise regulatory processes behind legume flower development was made possible by this data collection.</p>

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Dynamic analysis of the transcriptome offers molecular insights into flower development in Arachis hypogaea ssp. Virginia bunch

  • 期刊论文

  • 发表日期：

    2025年6月2日

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  • Nimita Umretiya,
  • Achyut Bharose,
  • Hitesh Jasani,
  • Baljibhai Golakiya,
  • Anubhav Dubey,
  • Sunil Tulshiram Hajare

摘要

Groundnut, the world's most important oil crop, has pods in soil despite blossoms above ground. Peanuts mature unevenly, requiring a balance between maturity and yield. Comparative transcriptome, proteome, and metabolome analyses can help understand cellular processes. Therefore, the proposed study aimed to use a transcriptome dynamics approach in Arachis hypogaea ssp. virginia bunch during flower development. Transcriptomics research examined groundnut flower development gene expression profiles using high-throughput sequencing on three vegetative tissues and various stages. Results showed downregulation of specific genes during bud development and upregulation later, providing insight into potential gene activities in all groundnut samples. The findings indicated that auxin response factor 2A protein (ARF2-A_2) was generally upregulated in buds, with a slight shift in expression observed in flowers, signifying floral organ abscission and positive regulation of flower development. In contrast, BNH protein pectin esterase, which is similar to pollen-specific protein (AT3G13400), was downregulated in pegs and buds but highly upregulated in flowers that are present at the mature pollen stage (anthesis). Dehydrin protein (COR47) was found to be downregulated in buds and flowers and significantly upregulated in pegs, which symbolize the defense response against fungus. The understanding of the precise regulatory processes behind legume flower development was made possible by this data collection.