Cargando…

The Ectopic Expression of Btr2 in Aegilops tauschii Switches the Disarticulation Layer From Above to Below the Rachis Node

Seed dispersal among wild species belonging to the tribe Triticeae is typically achieved by the formation of a brittle rachis. The trait relies on the development of a disarticulation layer, most frequently above the rachis node (resulting in wedge type dispersal units), but in some species below th...

Descripción completa

Detalles Bibliográficos
Autores principales: Zeng, Xiaoxue, Tagiri, Akemi, Kikuchi, Shinji, Sassa, Hidenori, Komatsuda, Takao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7680762/
https://www.ncbi.nlm.nih.gov/pubmed/33240300
http://dx.doi.org/10.3389/fpls.2020.582622
_version_ 1783612497916329984
author Zeng, Xiaoxue
Tagiri, Akemi
Kikuchi, Shinji
Sassa, Hidenori
Komatsuda, Takao
author_facet Zeng, Xiaoxue
Tagiri, Akemi
Kikuchi, Shinji
Sassa, Hidenori
Komatsuda, Takao
author_sort Zeng, Xiaoxue
collection PubMed
description Seed dispersal among wild species belonging to the tribe Triticeae is typically achieved by the formation of a brittle rachis. The trait relies on the development of a disarticulation layer, most frequently above the rachis node (resulting in wedge type dispersal units), but in some species below the rachis node (resulting in barrel type dispersal units). The genes responsible for the former type are the complementary pair Btr1 and Btr2, while the genetic basis of the latter type has yet to be determined. Aegilops tauschii forms barrel type dispersal units and previous study showed this species lacked an intact copy of Btr1. Here it has been demonstrated that Ae. tauschii carries two of Btr2; and that Btr2 transcript is present in a region below the rachis node where the abscission zone forms. The implication is that in this species, the Btr2 product is involved in the formation of barrel type dispersal units.
format Online
Article
Text
id pubmed-7680762
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-76807622020-11-24 The Ectopic Expression of Btr2 in Aegilops tauschii Switches the Disarticulation Layer From Above to Below the Rachis Node Zeng, Xiaoxue Tagiri, Akemi Kikuchi, Shinji Sassa, Hidenori Komatsuda, Takao Front Plant Sci Plant Science Seed dispersal among wild species belonging to the tribe Triticeae is typically achieved by the formation of a brittle rachis. The trait relies on the development of a disarticulation layer, most frequently above the rachis node (resulting in wedge type dispersal units), but in some species below the rachis node (resulting in barrel type dispersal units). The genes responsible for the former type are the complementary pair Btr1 and Btr2, while the genetic basis of the latter type has yet to be determined. Aegilops tauschii forms barrel type dispersal units and previous study showed this species lacked an intact copy of Btr1. Here it has been demonstrated that Ae. tauschii carries two of Btr2; and that Btr2 transcript is present in a region below the rachis node where the abscission zone forms. The implication is that in this species, the Btr2 product is involved in the formation of barrel type dispersal units. Frontiers Media S.A. 2020-11-09 /pmc/articles/PMC7680762/ /pubmed/33240300 http://dx.doi.org/10.3389/fpls.2020.582622 Text en Copyright © 2020 Zeng, Tagiri, Kikuchi, Sassa and Komatsuda. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Zeng, Xiaoxue
Tagiri, Akemi
Kikuchi, Shinji
Sassa, Hidenori
Komatsuda, Takao
The Ectopic Expression of Btr2 in Aegilops tauschii Switches the Disarticulation Layer From Above to Below the Rachis Node
title The Ectopic Expression of Btr2 in Aegilops tauschii Switches the Disarticulation Layer From Above to Below the Rachis Node
title_full The Ectopic Expression of Btr2 in Aegilops tauschii Switches the Disarticulation Layer From Above to Below the Rachis Node
title_fullStr The Ectopic Expression of Btr2 in Aegilops tauschii Switches the Disarticulation Layer From Above to Below the Rachis Node
title_full_unstemmed The Ectopic Expression of Btr2 in Aegilops tauschii Switches the Disarticulation Layer From Above to Below the Rachis Node
title_short The Ectopic Expression of Btr2 in Aegilops tauschii Switches the Disarticulation Layer From Above to Below the Rachis Node
title_sort ectopic expression of btr2 in aegilops tauschii switches the disarticulation layer from above to below the rachis node
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7680762/
https://www.ncbi.nlm.nih.gov/pubmed/33240300
http://dx.doi.org/10.3389/fpls.2020.582622
work_keys_str_mv AT zengxiaoxue theectopicexpressionofbtr2inaegilopstauschiiswitchesthedisarticulationlayerfromabovetobelowtherachisnode
AT tagiriakemi theectopicexpressionofbtr2inaegilopstauschiiswitchesthedisarticulationlayerfromabovetobelowtherachisnode
AT kikuchishinji theectopicexpressionofbtr2inaegilopstauschiiswitchesthedisarticulationlayerfromabovetobelowtherachisnode
AT sassahidenori theectopicexpressionofbtr2inaegilopstauschiiswitchesthedisarticulationlayerfromabovetobelowtherachisnode
AT komatsudatakao theectopicexpressionofbtr2inaegilopstauschiiswitchesthedisarticulationlayerfromabovetobelowtherachisnode
AT zengxiaoxue ectopicexpressionofbtr2inaegilopstauschiiswitchesthedisarticulationlayerfromabovetobelowtherachisnode
AT tagiriakemi ectopicexpressionofbtr2inaegilopstauschiiswitchesthedisarticulationlayerfromabovetobelowtherachisnode
AT kikuchishinji ectopicexpressionofbtr2inaegilopstauschiiswitchesthedisarticulationlayerfromabovetobelowtherachisnode
AT sassahidenori ectopicexpressionofbtr2inaegilopstauschiiswitchesthedisarticulationlayerfromabovetobelowtherachisnode
AT komatsudatakao ectopicexpressionofbtr2inaegilopstauschiiswitchesthedisarticulationlayerfromabovetobelowtherachisnode