MYB transcription factors and their roles in the male reproductive development of flowering plants

Wang, Yijie; Zhou, Haijun; He, Yukai; Shen, Xiuping; Lin, Sue; Huang, Linli

doi:10.1016/j.plantsci.2023.111811

Cited by 11 publications

(8 citation statements)

References 116 publications

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“…Previous studies have documented ample evidence that jasmonate is a vital hormone regulating multiple reproductive processes including flower opening time, and stamen/female organ development, and fertility 39 , 40 . MYB transcription factors, especially R2R3-MYB members, have been shown to function as key regulators in JA-mediated flower opening and floral organ development in different plant species 41 , 42 . For example, AtMYB21/24, two homologs of OsMYB8, are targets of JAZ repressors and could interact with MYC2/3/4/5 to regulate petal elongation (thus leading to petal opening), stamen development, and pollen fertility in Arabidopsis 43 , 44 .…”

Section: Discussionmentioning

confidence: 99%

Natural variation in OsMYB8 confers diurnal floret opening time divergence between indica and japonica subspecies

Gou,

Heng,

Ding

et al. 2024

Nat Commun

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The inter-subspecific indica-japonica hybrid rice confer potential higher yield than the widely used indica-indica intra-subspecific hybrid rice. Nevertheless, the utilization of this strong heterosis is currently hindered by asynchronous diurnal floret opening time (DFOT) of indica and japonica parental lines. Here, we identify OsMYB8 as a key regulator of rice DFOT. OsMYB8 induces the transcription of JA-Ile synthetase OsJAR1, thereby regulating the expression of genes related to cell osmolality and cell wall remodeling in lodicules to promote floret opening. Natural variations of OsMYB8 promoter contribute to its differential expression, thus differential transcription of OsJAR1 and accumulation of JA-Ile in lodicules of indica and japonica subspecies. Furthermore, introgression of the indica haplotype of OsMYB8 into japonica effectively promotes DFOT in japonica. Our findings reveal an OsMYB8-OsJAR1 module that regulates differential DFOT in indica and japonica, and provide a strategy for breeding early DFOT japonica to facilitate breeding of indica-japonica hybrids.

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Section: Discussionmentioning

confidence: 99%

Natural variation in OsMYB8 confers diurnal floret opening time divergence between indica and japonica subspecies

Gou,

Heng,

Ding

et al. 2024

Nat Commun

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“…In addition to those organ-specific genes in the MADS-box family, we detected other TFs that were specifically expressed in different genders. LBD, NAC, and MYB TFs regulate female and male reproductive organ development [ 87 , 90 , 91 , 95 , 96 ]. Several of the TFs discussed above were specifically expressed in the male or female gametophyte stages ( Figure 3 A).…”

Section: Discussionmentioning

confidence: 99%

Gene Regulatory Network Controlling Flower Development in Spinach (Spinacia oleracea L.)

Ma,

Fu,

Wan

et al. 2024

IJMS

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Spinach (Spinacia oleracea L.) is a dioecious, diploid, wind-pollinated crop cultivated worldwide. Sex determination plays an important role in spinach breeding. Hence, this study aimed to understand the differences in sexual differentiation and floral organ development of dioecious flowers, as well as the differences in the regulatory mechanisms of floral organ development of dioecious and monoecious flowers. We compared transcriptional-level differences between different genders and identified differentially expressed genes (DEGs) related to spinach floral development, as well as sex-biased genes to investigate the flower development mechanisms in spinach. In this study, 9189 DEGs were identified among the different genders. DEG analysis showed the participation of four main transcription factor families, MIKC_MADS, MYB, NAC, and bHLH, in spinach flower development. In our key findings, abscisic acid (ABA) and gibberellic acid (GA) signal transduction pathways play major roles in male flower development, while auxin regulates both male and female flower development. By constructing a gene regulatory network (GRN) for floral organ development, core transcription factors (TFs) controlling organ initiation and growth were discovered. This analysis of the development of female, male, and monoecious flowers in spinach provides new insights into the molecular mechanisms of floral organ development and sexual differentiation in dioecious and monoecious plants in spinach.

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“…According to the number of adjacent MYB repeats, plant MYB TFs are divided into 1R-MYB/MYB-related, R2R3-MYB, 3R-MYB, and 4R-MYB classes [ 9 ]. Advances in the functional investigation of MYB TFs since the identification of the first MYB gene COLORED1 in maize emphasize their significance in a multitude of vital plant activities related to plant growth and development, including primary and secondary metabolism, plant tissue differentiation and development, stress responses, and especially male gametophyte development [ 73 , 74 , 75 ].…”

Section: Roles Of Tfs In Male Gametophyte Developmentmentioning

confidence: 99%

Transcription Factors and Their Regulatory Roles in the Male Gametophyte Development of Flowering Plants

Qian,

Shi,

Zhang

et al. 2024

IJMS

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Male gametophyte development in plants relies on the functions of numerous genes, whose expression is regulated by transcription factors (TFs), non-coding RNAs, hormones, and diverse environmental stresses. Several excellent reviews are available that address the genes and enzymes associated with male gametophyte development, especially pollen wall formation. Growing evidence from genetic studies, transcriptome analysis, and gene-by-gene studies suggests that TFs coordinate with epigenetic machinery to regulate the expression of these genes and enzymes for the sequential male gametophyte development. However, very little summarization has been performed to comprehensively review their intricate regulatory roles and discuss their downstream targets and upstream regulators in this unique process. In the present review, we highlight the research progress on the regulatory roles of TF families in the male gametophyte development of flowering plants. The transcriptional regulation, epigenetic control, and other regulators of TFs involved in male gametophyte development are also addressed.

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MYB transcription factors and their roles in the male reproductive development of flowering plants

Cited by 11 publications

References 116 publications

Natural variation in OsMYB8 confers diurnal floret opening time divergence between indica and japonica subspecies

Natural variation in OsMYB8 confers diurnal floret opening time divergence between indica and japonica subspecies

Gene Regulatory Network Controlling Flower Development in Spinach (Spinacia oleracea L.)

Transcription Factors and Their Regulatory Roles in the Male Gametophyte Development of Flowering Plants

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