Genome-Wide Analysis of the Growth-Regulating Factor (GRF) Family in Aquatic Plants and Their Roles in the ABA-Induced Turion Formation of Spirodela polyrhiza.
Genome-Wide Analysis of the Growth-Regulating Factor (GRF) Family in Aquatic Plants and Their Roles in the ABA-Induced Turion Formation of Spirodela polyrhiza.
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水生植物生长调节因子 (GRF) 家族的全基因组分析及其在 ABA 诱导紫背藻 Turion 形成中的作用
DOI：
10.3390/ijms231810485
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发表时间：
2022-09-10
影响因子：
5.6
通讯作者：
Hou, Hongwei
中科院分区：
文献类型：
--
作者：
Li, Gaojie;Chen, Yan;Zhao, Xuyao;Yang, Jingjing;Wang, Xiaoyu;Li, Xiaozhe;Hu, Shiqi;Hou, Hongwei
生长调节因子（Growth-regulating factors，GRFs）是一类植物特异性转录因子，在调节植物生长和逆境应答中发挥重要作用。GRF基因家族已在几种陆生植物中被描述，但这些基因在不同水生物种中的综合分析尚未报道。在这项研究中，我们在13种水生植物（包括漂浮植物）中鉴定了130个GRF基因（Azolla filiculoides，Wolffia australiana，Lemna minuta，Spirospirit intermedia，and Spirospirit polyrhiza），浮叶植物（睡莲和芡实），沉水植物（大叶藻，金鱼藻，Aldrovanda vesiculosa，和狸藻），挺水植物（Nelumbo nucifera）和两栖植物（Cladopus chinensis）。分析了这些基因的基因结构、基序和顺式调控元件。系统发育分析将这些GRFs分为5个簇，ABRE顺式元件在漂浮植物GRFs的启动子区高度富集。我们发现脱落酸（阿坝）能有效诱导水萍（Spirophilopolyrhiza）的分蘖，但其叶片中SpGRF基因的表达却有波动。本研究结果为进一步研究水生动物GRF基因家族的功能奠定了基础。
Growth-regulating factors (GRFs) are plant-specific transcription factors that play essential roles in regulating plant growth and stress response. The GRF gene families have been described in several terrestrial plants, but a comprehensive analysis of these genes in diverse aquatic species has not been reported yet. In this study, we identified 130 GRF genes in 13 aquatic plants, including floating plants (Azolla filiculoides, Wolffia australiana, Lemna minuta, Spirodela intermedia, and Spirodela polyrhiza), floating-leaved plants (Nymphaea colorata and Euryale ferox), submersed plants (Zostera marina, Ceratophyllum demersum, Aldrovanda vesiculosa, and Utricularia gibba), an emergent plant (Nelumbo nucifera), and an amphibious plant (Cladopus chinensis). The gene structures, motifs, and cis-acting regulatory elements of these genes were analyzed. Phylogenetic analysis divided these GRFs into five clusters, and ABRE cis-elements were highly enriched in the promoter region of the GRFs in floating plants. We found that abscisic acid (ABA) is efficient at inducing the turion of Spirodela polyrhiza (giant duckweed), accompanied by the fluctuated expression of SpGRF genes in their fronds. Our results provide information about the GRF gene family in aquatic species and lay the foundation for future studies on the functions of these genes.
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