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Flower development is an important stage in plant growth and development, including flowering decision (flowering time), flower initiation (sex differentiation) and flower organ development, which determines plant yield and maintains genetic diversity of species. Firstly, the flowering time is regulated by a ...

Flower development is an important stage in plant growth and development, including flowering decision (flowering time), flower initiation (sex differentiation) and flower organ development, which determines plant yield and maintains genetic diversity of species. Firstly, the flowering time is regulated by a variety of exogenous environmental factors and endogenous growth and developmental signals in order to ensure that flowering occurs in the right season to improve the reproductive success rate. Secondly, sex differentiation is also determined by environmental factors and genetic factors, and is the key reason to determine the yield of unisexual flowers plant. Therefore, it has been one of the most active research fields in developmental biology, genetics, embryology and so on. Thirdly, the molecular mechanism of floral organ development is a hotspot in plant developmental biology research. In addition to the ABCDE model, other transcription factors and exogenous hormone metabolism genes are also important factors in the regulation of flower organ development.

Over the last decade, the genomic studies of plants have been rapidly advanced due to the rapid development of molecular biology and sequencing technology. The availability of sequencing data is only a starting point, although it provides a lot of genetic resources. To deepen this knowledge, it is necessary to understand how thousands of genes interact each other to determine the regulation of flower development, and how do they relate to each other on the genome, and how pathways they participate in responding to environmental and hormonal signals.

Therefore, this Research Topic aims to summarize recent findings on functional genomics related to the flower development, so as to further explore the mechanisms of flower developmental process, and to provide the theoretical basis for plant stimulation and breeding. Within the Research Topic, we welcome Original Research and Review articles on, but not limited to:
• Comparative genomics in flower development-related gene family, such as MADS-box gene family, hormone-related gene families, etc.;
• Functional genomics applied to flowering time, sex differentiation and flower organ development;
• Discovery and characterization of novel genes in flowering time, sex differentiation and flower organ development.

Keywords: Flower Development, Flowering Time, Sex Differentiation, Organ Development, Functional Genomics, Comparative Genomics


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