Trichomes at the Base of the Petal Are Regulated by the Same Transcription Factors as Cotton Seed Fibers.

Tan, J; Walford, S-A; Dennis, ES; Llewellyn, DJ

Trichomes at the Base of the Petal Are Regulated by the Same Transcription Factors as Cotton Seed Fibers.

Tan, J

Walford, S-A Dennis, ES Llewellyn, DJ

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Publisher:: Oxford University Press (OUP)
Publication Type:: Journal Article
Citation:: Plant & cell physiology, 2020, 61, (9), pp. 1590-1599
Issue Date:: 2020-09

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Field	Value	Language
dc.contributor.author	Tan, J https://orcid.org/0000-0002-6498-7495
dc.contributor.author	Walford, S-A
dc.contributor.author	Dennis, ES
dc.contributor.author	Llewellyn, DJ
dc.date.accessioned	2020-10-19T05:31:31Z
dc.date.available	2020-06-12
dc.date.available	2020-10-19T05:31:31Z
dc.date.issued	2020-09
dc.identifier.citation	Plant & cell physiology, 2020, 61, (9), pp. 1590-1599
dc.identifier.issn	0032-0781
dc.identifier.issn	1471-9053
dc.identifier.uri	http://hdl.handle.net/10453/143371
dc.description.abstract	Many polypetalous plants have a constriction at the base of the petal that leaves a small gap that can provide entry into the young flower bud before the reproductive organs are fully developed. In cotton (Gossypium hirsutum L.), this gap is occluded by tufts of short unicellular trichomes superficially resembling the fibers found on cotton seeds. We are just beginning to understand the developmental regulation of the seed fibers and have previously characterized several MIXTA-like MYB transcription factors (TFs) that are critical for correct seed fiber development but know little about the molecular regulation of other types of cotton trichomes. Here, using RNAi or dominant suppression transgenic cotton lines and natural fiber mutants, we investigated the development and regulation of the petal base trichomes. Petal base trichomes and seed trichomes were also examined across several different species within and outside of the Malvoideae. We found that the petal base trichomes are regulated by the same MYB TFs as cotton seed fibers and, since they are more widely distributed across different taxa than the seed fibers, could have preceded them in the evolution of these important textile fibers produced by some cotton species.
dc.format	Print
dc.language	eng
dc.publisher	Oxford University Press (OUP)
dc.relation.ispartof	Plant & cell physiology
dc.relation.isbasedon	10.1093/pcp/pcaa082
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0601 Biochemistry and Cell Biology, 0607 Plant Biology
dc.subject.classification	Plant Biology & Botany
dc.title	Trichomes at the Base of the Petal Are Regulated by the Same Transcription Factors as Cotton Seed Fibers.
dc.type	Journal Article
utslib.citation.volume	61
utslib.location.activity	Japan
utslib.for	0601 Biochemistry and Cell Biology
utslib.for	0607 Plant Biology
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2020-10-19T05:31:23Z
pubs.issue	9
pubs.publication-status	Published
pubs.volume	61
utslib.citation.issue	9

Abstract:

Many polypetalous plants have a constriction at the base of the petal that leaves a small gap that can provide entry into the young flower bud before the reproductive organs are fully developed. In cotton (Gossypium hirsutum L.), this gap is occluded by tufts of short unicellular trichomes superficially resembling the fibers found on cotton seeds. We are just beginning to understand the developmental regulation of the seed fibers and have previously characterized several MIXTA-like MYB transcription factors (TFs) that are critical for correct seed fiber development but know little about the molecular regulation of other types of cotton trichomes. Here, using RNAi or dominant suppression transgenic cotton lines and natural fiber mutants, we investigated the development and regulation of the petal base trichomes. Petal base trichomes and seed trichomes were also examined across several different species within and outside of the Malvoideae. We found that the petal base trichomes are regulated by the same MYB TFs as cotton seed fibers and, since they are more widely distributed across different taxa than the seed fibers, could have preceded them in the evolution of these important textile fibers produced by some cotton species.

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http://hdl.handle.net/10453/143371