TAWAWA1, a regulator of rice inflorescence architecture, functions through the suppression of meristem phase transition

Akiko Yoshida, Masafumi Sasao, Naoko Yasuno, Kyoko Takagi, Yasufumi Daimon, Ruihong Chen, Ryo Yamazaki, Hiroki Tokunaga, Yoshinori Kitaguchi, Yutaka Sato, Yoshiaki Nagamura, Tomokazu Ushijima, Toshihiro Kumamaru, Shigeru Iida, Masahiko Maekawa, Junko Kyozuka

研究成果: ジャーナルへの寄稿記事

77 引用 (Scopus)

抄録

Inflorescence structures result from the activities of meristems, which coordinate both the renewal of stem cells in the center and organ formation at the periphery. The fate of a meristem is specified at its initiation and changes as the plant develops. During rice inflorescence development, newly formed meristems acquire a branch meristem (BM) identity, and can generate further meristems or terminate as spikelets. Thus, the form of rice inflorescence is determined by a reiterative pattern of decisions made at the meristems. In the dominant gain-of-function mutant tawawa1-D, the activity of the inflorescence meristem (IM) is extended and spikelet specification is delayed, resulting in prolonged branch formation and increased numbers of spikelets. In contrast, reductions in TAWAWA1 (TAW1) activity cause precocious IM abortion and spikelet formation, resulting in the generation of small inflorescences. TAW1 encodes a nuclear protein of unknown function and shows high levels of expression in the shoot apical meristem, the IM, and the BMs. TAW1 expression disappears from incipient spikelet meristems (SMs). We also demonstrate that members of the SHORT VEGETATIVE PHASE subfamily of MADS-box genes function downstream of TAW1. We thus propose that TAW1 is a unique regulator of meristem activity in rice and regulates inflorescence development through the promotion of IM activity and suppression of the phase change to SM identity.

元の言語英語
ページ(範囲)767-772
ページ数6
ジャーナルProceedings of the National Academy of Sciences of the United States of America
110
発行部数2
DOI
出版物ステータス出版済み - 1 8 2013

Fingerprint

Inflorescence
Meristem
Phase Transition
Oryza
Nuclear Proteins

All Science Journal Classification (ASJC) codes

  • General

これを引用

TAWAWA1, a regulator of rice inflorescence architecture, functions through the suppression of meristem phase transition. / Yoshida, Akiko; Sasao, Masafumi; Yasuno, Naoko; Takagi, Kyoko; Daimon, Yasufumi; Chen, Ruihong; Yamazaki, Ryo; Tokunaga, Hiroki; Kitaguchi, Yoshinori; Sato, Yutaka; Nagamura, Yoshiaki; Ushijima, Tomokazu; Kumamaru, Toshihiro; Iida, Shigeru; Maekawa, Masahiko; Kyozuka, Junko.

:: Proceedings of the National Academy of Sciences of the United States of America, 巻 110, 番号 2, 08.01.2013, p. 767-772.

研究成果: ジャーナルへの寄稿記事

Yoshida, A, Sasao, M, Yasuno, N, Takagi, K, Daimon, Y, Chen, R, Yamazaki, R, Tokunaga, H, Kitaguchi, Y, Sato, Y, Nagamura, Y, Ushijima, T, Kumamaru, T, Iida, S, Maekawa, M & Kyozuka, J 2013, 'TAWAWA1, a regulator of rice inflorescence architecture, functions through the suppression of meristem phase transition', Proceedings of the National Academy of Sciences of the United States of America, 巻. 110, 番号 2, pp. 767-772. https://doi.org/10.1073/pnas.1216151110
Yoshida, Akiko ; Sasao, Masafumi ; Yasuno, Naoko ; Takagi, Kyoko ; Daimon, Yasufumi ; Chen, Ruihong ; Yamazaki, Ryo ; Tokunaga, Hiroki ; Kitaguchi, Yoshinori ; Sato, Yutaka ; Nagamura, Yoshiaki ; Ushijima, Tomokazu ; Kumamaru, Toshihiro ; Iida, Shigeru ; Maekawa, Masahiko ; Kyozuka, Junko. / TAWAWA1, a regulator of rice inflorescence architecture, functions through the suppression of meristem phase transition. :: Proceedings of the National Academy of Sciences of the United States of America. 2013 ; 巻 110, 番号 2. pp. 767-772.
@article{464337a1a57441bc8d8a58672a135463,
title = "TAWAWA1, a regulator of rice inflorescence architecture, functions through the suppression of meristem phase transition",
abstract = "Inflorescence structures result from the activities of meristems, which coordinate both the renewal of stem cells in the center and organ formation at the periphery. The fate of a meristem is specified at its initiation and changes as the plant develops. During rice inflorescence development, newly formed meristems acquire a branch meristem (BM) identity, and can generate further meristems or terminate as spikelets. Thus, the form of rice inflorescence is determined by a reiterative pattern of decisions made at the meristems. In the dominant gain-of-function mutant tawawa1-D, the activity of the inflorescence meristem (IM) is extended and spikelet specification is delayed, resulting in prolonged branch formation and increased numbers of spikelets. In contrast, reductions in TAWAWA1 (TAW1) activity cause precocious IM abortion and spikelet formation, resulting in the generation of small inflorescences. TAW1 encodes a nuclear protein of unknown function and shows high levels of expression in the shoot apical meristem, the IM, and the BMs. TAW1 expression disappears from incipient spikelet meristems (SMs). We also demonstrate that members of the SHORT VEGETATIVE PHASE subfamily of MADS-box genes function downstream of TAW1. We thus propose that TAW1 is a unique regulator of meristem activity in rice and regulates inflorescence development through the promotion of IM activity and suppression of the phase change to SM identity.",
author = "Akiko Yoshida and Masafumi Sasao and Naoko Yasuno and Kyoko Takagi and Yasufumi Daimon and Ruihong Chen and Ryo Yamazaki and Hiroki Tokunaga and Yoshinori Kitaguchi and Yutaka Sato and Yoshiaki Nagamura and Tomokazu Ushijima and Toshihiro Kumamaru and Shigeru Iida and Masahiko Maekawa and Junko Kyozuka",
year = "2013",
month = "1",
day = "8",
doi = "10.1073/pnas.1216151110",
language = "English",
volume = "110",
pages = "767--772",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
number = "2",

}

TY - JOUR

T1 - TAWAWA1, a regulator of rice inflorescence architecture, functions through the suppression of meristem phase transition

AU - Yoshida, Akiko

AU - Sasao, Masafumi

AU - Yasuno, Naoko

AU - Takagi, Kyoko

AU - Daimon, Yasufumi

AU - Chen, Ruihong

AU - Yamazaki, Ryo

AU - Tokunaga, Hiroki

AU - Kitaguchi, Yoshinori

AU - Sato, Yutaka

AU - Nagamura, Yoshiaki

AU - Ushijima, Tomokazu

AU - Kumamaru, Toshihiro

AU - Iida, Shigeru

AU - Maekawa, Masahiko

AU - Kyozuka, Junko

PY - 2013/1/8

Y1 - 2013/1/8

N2 - Inflorescence structures result from the activities of meristems, which coordinate both the renewal of stem cells in the center and organ formation at the periphery. The fate of a meristem is specified at its initiation and changes as the plant develops. During rice inflorescence development, newly formed meristems acquire a branch meristem (BM) identity, and can generate further meristems or terminate as spikelets. Thus, the form of rice inflorescence is determined by a reiterative pattern of decisions made at the meristems. In the dominant gain-of-function mutant tawawa1-D, the activity of the inflorescence meristem (IM) is extended and spikelet specification is delayed, resulting in prolonged branch formation and increased numbers of spikelets. In contrast, reductions in TAWAWA1 (TAW1) activity cause precocious IM abortion and spikelet formation, resulting in the generation of small inflorescences. TAW1 encodes a nuclear protein of unknown function and shows high levels of expression in the shoot apical meristem, the IM, and the BMs. TAW1 expression disappears from incipient spikelet meristems (SMs). We also demonstrate that members of the SHORT VEGETATIVE PHASE subfamily of MADS-box genes function downstream of TAW1. We thus propose that TAW1 is a unique regulator of meristem activity in rice and regulates inflorescence development through the promotion of IM activity and suppression of the phase change to SM identity.

AB - Inflorescence structures result from the activities of meristems, which coordinate both the renewal of stem cells in the center and organ formation at the periphery. The fate of a meristem is specified at its initiation and changes as the plant develops. During rice inflorescence development, newly formed meristems acquire a branch meristem (BM) identity, and can generate further meristems or terminate as spikelets. Thus, the form of rice inflorescence is determined by a reiterative pattern of decisions made at the meristems. In the dominant gain-of-function mutant tawawa1-D, the activity of the inflorescence meristem (IM) is extended and spikelet specification is delayed, resulting in prolonged branch formation and increased numbers of spikelets. In contrast, reductions in TAWAWA1 (TAW1) activity cause precocious IM abortion and spikelet formation, resulting in the generation of small inflorescences. TAW1 encodes a nuclear protein of unknown function and shows high levels of expression in the shoot apical meristem, the IM, and the BMs. TAW1 expression disappears from incipient spikelet meristems (SMs). We also demonstrate that members of the SHORT VEGETATIVE PHASE subfamily of MADS-box genes function downstream of TAW1. We thus propose that TAW1 is a unique regulator of meristem activity in rice and regulates inflorescence development through the promotion of IM activity and suppression of the phase change to SM identity.

UR - http://www.scopus.com/inward/record.url?scp=84872199802&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84872199802&partnerID=8YFLogxK

U2 - 10.1073/pnas.1216151110

DO - 10.1073/pnas.1216151110

M3 - Article

C2 - 23267064

AN - SCOPUS:84872199802

VL - 110

SP - 767

EP - 772

JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

SN - 0027-8424

IS - 2

ER -