Characterization of Plant Homeodomain Transcription Factor Genes Involved in Flower Development and Multiple Abiotic Stress Response in Pepper.

Genes(2023)

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摘要
Plant homeodomain (PHD) transcription factor genes are involved in plant development and in a plant's response to stress. However, there are few reports about this gene family in peppers ( L.). In this study, the pepper inbred line "Zunla-1" was used as the reference genome, and a total of 43 genes were identified, and systematic analysis was performed to study the chromosomal location, evolutionary relationship, gene structure, domains, and upstream cis-regulatory elements of the genes. The fewest genes were located on chromosome 4, while the most were on chromosome 3. Genes with similar gene structures and domains were clustered together. Expression analysis showed that the expression of genes was quite different in different tissues and in response to various stress treatments. The expression of was different in the early stage of flower bud development in the near-isogenic cytoplasmic male-sterile inbred and the maintainer inbred lines. It is speculated that this gene is involved in the development of male sterility in pepper. was significantly upregulated in leaves and roots after heat stress, and it is speculated that plays an important role in tolerating heat stress in pepper; in addition, , , , , , , and were not sensitive to abiotic stress or hormonal factors. This study will provide the basis for further research into the function of genes in plant development and responses to abiotic stresses and hormones.
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关键词
multiple abiotic stress response,pepper,flower development,genes
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