Genome-wide characterization of SPL family in Medicago truncatula reveals the novel roles of miR156/SPL module in spiky pod development
Genome-wide characterization of SPL family in Medicago truncatula reveals the novel roles of miR156/SPL module in spiky pod development
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蒺藜苜蓿 SPL 家族的全基因组特征揭示了 miR156/SPL 模块在刺荚发育中的新作用
DOI：
10.1186/s12864-019-5937-1
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发表时间：
2019-07
期刊：
影响因子：
4.4
通讯作者：
Han Lu
中科院分区：
文献类型：
--
作者：
Wang Hongfeng;Lu Zhichao;Xu Yiteng;Kong Lingcui;Shi Jianjun;Liu Yafei;Fu Chunxiang;Wang Xiaoshan;Wang Zeng-Yu;Zhou Chuanen;Han Lu
背景：SQUAMOSA启动子结合蛋白样蛋白（SPLs）是一类植物特异性转录因子，在植物生长发育过程中起着重要作用。结果：在模式豆科植物蒺藜苜蓿（Medicago truncatula）中共鉴定出23个MtSPL基因。在truncatula基因组中，其中17个MtSPL在编码区或3' UTR区含有推定的MtmiR 156结合位点。组织特异性表达模式分析表明，大多数MtmiR 156靶向的MtSPLs在种子和豆荚中高度表达。对过量表达MtmiR 156 B的植物的观察表明，MtmiR 156/MtSPL组件不仅参与了叶片和枝条的发育，而且还参与了荚果的发育，尤其是荚果上刺的形成。本研究揭示了SPL基因家族在种子传播中的新功能，即控制刺荚的形成，并为理解SPL基因家族成员在植物物种间的进化差异提供了新的思路。
Background:SQUAMOSA Promoter Binding Protein-Likes (SPLs) proteins are plant-specific transcription factors that play many crucial roles in plant growth and development. However, there is little information about SPL family in the model legume Medicago truncatula.Results:In this study, a total of 23 MtSPL genes were identified in M. truncatula genome, in which 17 of the MtSPLs contained the putative MtmiR156 binding site at the coding or 3' UTR regions. Tissue-specific expression pattern analysis showed that most MtmiR156-targeted MtSPLs were highly expressed in seed and pod. The observation of MtmiR156B-overexpressing plants reveals that MtmiR156/MtSPL modules are not only involved in the development of leaves and branches, but also in the seed pod development, especially the formation of spine on pod.Conclusion:The spines on pods are developed in many plant species, which allow pods to adhere to the animals, and then be transported on the outside. This study sheds light on the new function of SPL family in seed dispersal by controlling the formation of spiky pod, and provides insights on understanding evolutionary divergence of the members of SPL gene family among plant species.
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影响因子：
3
作者：
I. Bonnin;T. Huguet;M. Ghérardi;J. Prosperi;I. Olivieri
通讯作者：
I. Bonnin;T. Huguet;M. Ghérardi;J. Prosperi;I. Olivieri
影响因子：
2
作者：
M. Vitale;F. Pupilli;P. Labombarda;S. Arcioni
通讯作者：
M. Vitale;F. Pupilli;P. Labombarda;S. Arcioni
影响因子：
5.3
作者：
通讯作者：
--
影响因子：
4.2
作者：
D. Harvey
通讯作者：
D. Harvey
影响因子：
4.6
作者：
Wu, Gang;Poethig, R. Scott
通讯作者：
Poethig, R. Scott