AGLF provides C-function in floral organ identity through transcriptional regulation of AGAMOUS in Medicago truncatula
AGLF provides C-function in floral organ identity through transcriptional regulation of AGAMOUS in Medicago truncatula
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AGLF 通过 AGAMOUS 的转录调控在蒺藜苜蓿中提供花器官身份的 C 功能
DOI：
10.1073/pnas.1820468116
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发表时间：
2019-02
影响因子：
11.1
通讯作者：
Zhou Chuanen
中科院分区：
文献类型：
--
作者：
Zhao Yang;Liu Rong;Xu Yiteng;Wang Minmin;Zhang Jing;Bai Mingyi;Han Chao;Xiang Fengning;Wang Zeng-Yu;Mysore Kirankumar S.;Wen Jiangqi;Zhou Chuanen
Significance Organogenesis is of great importance in both plant and animal development. Flowers have been studied exclusively to illustrate the mechanism underlying floral organ differentiation, which is controlled by the well-known ABC model. In this study, we identified a MYB-like gene in Medicago truncatula, AGAMOUS-LIKE FLOWER (AGLF), the null mutants of which developed homeotic transformation of stamens and carpel into petals and sepals. The relationships of AGLF with conventional ABC genes illustrated by the genetic and expression assays indicate that AGLF plays a C-function role in floral organ identity. Our work not only identifies a regulator of C-function genes, but also demonstrates the necessity of exploring the ABC models in other plant species with derived flower patterns. Floral development is one of the model systems for investigating the mechanisms underlying organogenesis in plants. Floral organ identity is controlled by the well-known ABC model, which has been generalized to many flowering plants. Here, we report a previously uncharacterized MYB-like gene, AGAMOUS-LIKE FLOWER (AGLF), involved in flower development in the model legume Medicago truncatula. Loss-of-function of AGLF results in flowers with stamens and carpel transformed into extra whorls of petals and sepals. Compared with the loss-of-function mutant of the class C gene AGAMOUS (MtAG) in M. truncatula, the defects in floral organ identity are similar between aglf and mtag, but the floral indeterminacy is enhanced in the aglf mutant. Knockout of AGLF in the mutants of the class A gene MtAP1 or the class B gene MtPI leads to an addition of a loss-of-C-function phenotype, reflecting a conventional relationship of AGLF with the canonical A and B genes. Furthermore, we demonstrate that AGLF activates MtAG in transcriptional levels in control of floral organ identity. These data shed light on the conserved and diverged molecular mechanisms that control flower development and morphology among plant species.
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DOI：
10.1007/978-1-4614-9408-9
发表时间：
2014
期刊：
Capital Markets: Market Microstructure eJournal
影响因子：
--
作者：
K. Goto;T. Homma;E. Meyerowitz;A. Oka
通讯作者：
K. Goto;T. Homma;E. Meyerowitz;A. Oka
影响因子：
11.4
作者：
HUIJSER, P;KLEIN, J;SOMMER, H
通讯作者：
SOMMER, H
影响因子：
11.6
作者：
HUALA, E;SUSSEX, IM
通讯作者：
SUSSEX, IM
影响因子：
11.6
作者：
Bey, M;Stüber, K;Zachgo, S
通讯作者：
Zachgo, S
重复的 AGAMOUS 同源物在调节蒺藜苜蓿花器官发育中的功能特化
影响因子：
5.6
作者：
Zhu B;Li H;Wen J;Mysore KS;Wang X;Pei Y;Niu L;Lin H
通讯作者：
Lin H