Functional divergence between soybean FLOWERING LOCUS T orthologues FT2a and FT5a in post-flowering stem growth
Functional divergence between soybean FLOWERING LOCUS T orthologues FT2a and FT5a in post-flowering stem growth
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大豆开花基因座直系同源物 FT2a 和 FT5a 在花后茎生长中的功能差异
DOI：
10.1093/jxb/erz199
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发表时间：
2019-04
影响因子：
6.9
通讯作者：
Abe Jun
中科院分区：
文献类型：
--
作者：
Takeshima Ryoma;Nan Haiyang;Harigai Kohei;Dong Lidong;Zhu Jianghui;Lu Sijia;Xu Meilan;Yamagishi Noriko;Yoshikawa Nobuyuki;Liu Baohui;Yamada Tetsuya;Kong Fanjiang;Abe Jun
摘要FLOWERLOCUS T（FT）家族基因整合外部和内部信号，控制植物发育的各个方面。在大豆（Glycine max）中，FT 2a和FT 5a在成花诱导中起主要作用，但它们在开花后生殖发育中的作用尚未确定。异位过表达分析表明，FT2a和FT5a同样诱导开花，但FT5a显着更有效的比FT2a花后终止茎生长。在FT5a过表达植物的生长早期，Dt1（拟南芥APETALA1的大豆同源物）在茎尖的下调与APETALA1同源物的高度上调表达相伴。Dt2基因是Dt1的阻遏物，通过FT 2a和FT 5a的过表达同样上调，表明它不参与FT 5a对茎终止的控制。除了先前报道的与FDL19（拟南芥bZIP蛋白FD的同源物）的相互作用之外，FT 2a和FT 5a都与FDL12相互作用，但只有FT 5a与FDL06相互作用。我们的研究结果表明，FT 2a和FT 5a在花后茎生长的控制中具有不同的功能。FT5a与FDL06的特异性相互作用可能在决定大豆开花后茎生长中起关键作用。
Abstract Genes in the FLOWERING LOCUS T (FT) family integrate external and internal signals to control various aspects of plant development. In soybean (Glycine max), FT2a and FT5a play a major role in floral induction, but their roles in post-flowering reproductive development remain undetermined. Ectopic overexpression analyses revealed that FT2a and FT5a similarly induced flowering, but FT5a was markedly more effective than FT2a for the post-flowering termination of stem growth. The down-regulation of Dt1, a soybean orthologue of Arabidopsis TERMINAL FLOWER1, in shoot apices in early growing stages of FT5a-overexpressing plants was concomitant with highly up-regulated expression of APETALA1 orthologues. The Dt2 gene, a repressor of Dt1, was up-regulated similarly by the overexpression of FT2a and FT5a, suggesting that it was not involved in the control of stem termination by FT5a. In addition to the previously reported interaction with FDL19, a homologue of the Arabidopsis bZIP protein FD, both FT2a and FT5a interacted with FDL12, but only FT5a interacted with FDL06. Our results suggest that FT2a and FT5a have different functions in the control of post-flowering stem growth. A specific interaction of FT5a with FDL06 may play a key role in determining post-flowering stem growth in soybean.
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影响因子：
6.9
作者：
Nico M;Mantese AI;Miralles DJ;Kantolic AG
通讯作者：
Kantolic AG
影响因子：
5.6
作者：
Liu L;Farrona S;Klemme S;Turck FK
通讯作者：
Turck FK
影响因子：
7.2
作者：
Huang, Nien-Chen;Jane, Wann-Neng;Yu, Tien-Shin
通讯作者：
Yu, Tien-Shin
DOI：
10.1073/pnas.0505667103
发表时间：
2006-02-07
影响因子：
11.1
作者：
Furihata, T;Maruyama, K;Yamaguchi-Shinozaki, K
通讯作者：
Yamaguchi-Shinozaki, K
影响因子：
11.6
作者：
Teper-Bamnolker, P;Samach, A
通讯作者：
Samach, A