The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.
The MYB transcription factor GhMYB25 regulates early fibre and trichome development
Open accessAbstract
Summary: Little is still known about the developmental control of the long seed coat trichomes of cotton (Gossypium hirsutum L.). In Arabidopsis, leaf trichome initiation is regulated by a group of well‐defined transcription factors that includes MYB and homeodomain types. Many MYBs are expressed in fibres, but their roles in fibre development remain unclear. We analysed the function of one MYB transcription factor, GhMYB25, identified from transcriptome comparisons between wild‐type and fibreless cotton mutants. A GhMYB25 promoter‐GUS construct in transgenic cotton was expressed in the epidermis of ovules, developing fibre initials and fibres, in the trichomes of a number of tissues including leaves, stems and petals, as well as in the anthers, pollen and the epidermal layers of roots and root initials, but not in root hairs. Cotton is an allotetraploid with two very similar GhMYB25 genes that were silenced by a single RNAi construct. GhMYB25‐silenced cotton showed alterations in the timing of rapid fibre elongation, resulting in short fibres, dramatic reductions in trichomes on other parts of the plant, and reductions in seed production. Reciprocal crosses between transgenic and non‐transgenic plants indicated that pollen and ovule viability per se were not disrupted. Ectopic over‐expression of GhMYB25 had more subtle impacts, with increases in cotton fibre initiation and leaf trichome number. High expression appeared to adversely affect fertility. Our results provide convincing evidence for a role of GhMYB25, like other MIXTA‐like MYBS, in regulating specialized outgrowths of epidermal cells, including, in this case, cotton fibres.
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Cites
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Trichomes: different regulatory networks lead to convergent structures
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Control of Plant Trichome Development by a Cotton Fiber MYB Gene[W]
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Plant trichomes: a model for cell differentiation
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Control of cell and petal morphogenesis by R2R3 MYB transcription factors
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Cited by
Genome sequence of the cultivated cotton Gossypium arboreum
Li, F., Fan, G., Wang, K., Sun, F., Yuan, Y., Song, G., Li, Q., Ma, Z., Lu, C., Zou, C., et al. (2014) · Nature Genetics · doi:10.1038/ng.2987 · Cited by 870
Control of cotton fibre elongation by a homeodomain transcription factor GhHOX3
Shan, C.-M., Shangguan, X.-X., Zhao, B., Zhang, X.-F., Chao, L.-M., Yang, C.-Q., Wang, L.-J., Zhu, H.-Y., Zeng, Y.-D., Guo, W.-Z., et al. (2014) · Nature Communications · doi:10.1038/ncomms6519 · Cited by 296
Kaur, H., Heinzel, N., Schöttner, M., Baldwin, I. T., & GÁlis, I. (2010) · Plant Physiology · doi:10.1104/pp.109.151738 · Cited by 254
Salih, H., Gong, W., He, S., Sun, G., Sun, J., & Du, X. (2016) · BMC Genetics · doi:10.1186/s12863-016-0436-8 · Cited by 146
Qin, W., Xie, L., Li, Y., Liu, H., Fu, X., Chen, T., Hassani, D., Li, L., Sun, X., & Tang, K. (2021) · Frontiers in Plant Science · doi:10.3389/fpls.2021.657156 · Cited by 66
Metadata
- Authors
- Machado, A., Wu, Y., Yang, Y., Llewellyn, D. J., & Dennis, E. S.
- Venue
- The Plant Journal
- Publisher
- Wiley
- Published
- 2009-06-25
- Volume
- 59
- Issue
- 1
- Pages
- 52-62
- ISSN
- 0960-7412 (ISSN-L)
- 1365-313X
- OpenAlex
- W2137683949
- Cited by
- 334
- References
- 16
- FWCI
- 13.60
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Machado, A., Wu, Y., Yang, Y., Llewellyn, D. J., & Dennis, E. S. (2009). The MYB transcription factor GhMYB25 regulates early fibre and trichome development. The Plant Journal. https://doi.org/10.1111/j.1365-313x.2009.03847.x
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