The Role of Alternative Splicing in Floral Transition

doi:10.11983/CBB21085

Abstract

Abstract: Precise regulation of floral transition, which ensures plants bloom in the suitable environment, is essential for the successful reproduction of plants. The flowering time genes are regulated by a variety of molecular mechanisms, including transcriptional, post-transcriptional and post-translational regulations. Alternative splicing is a universal molecular process at the post-transcriptional level that can generate multiple transcripts from a single gene, thereby enriching the diversity of the transcriptome and proteome. The accumulating evidence indicates that alternative splicing plays an important role in the floral transition. According to developmental and environmental cues, alternative splicing can regulate the levels of functional transcripts and/or proteins of flowering time genes by affecting the stability of mRNA and/or the function of protein isoforms. Therefore, revealing the roles of alternative splicing will further improve our understanding of the functions of flowering time genes and the whole regulatory network of floral transition. In this review, we introduce the research progress of alternative splicing in floral transition, and summarize from the various regulatory pathways, thereby providing a reference for further research on the regulatory mechanisms of alternative splicing and floral transition in plants.

Key words: alternative splicing, floral transition, endogenous signals, environmental signals

Fangfang Cai, Changsheng Shao, Yuqiang Sun. The Role of Alternative Splicing in Floral Transition[J]. Chinese Bulletin of Botany, 2022, 57(1): 69-79.

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URL: https://www.chinbullbotany.com/EN/10.11983/CBB21085

https://www.chinbullbotany.com/EN/Y2022/V57/I1/69

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References 71

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物种	基因名称	调控途径	调控方式	剪切类型	参考文献
拟南芥	CO	光周期途径	促进	IR	Gil et al., 2017
	ELF3	光周期途径	抑制	IR	Kwon et al., 2014
	SPA3	光周期途径	抑制	IR	Shikata et al., 2014
	FLC	春化与自主途径	抑制	IR和AA	Lempe et al., 2005
	COOLAIR	春化与自主途径	促进	IR、ES、AA和AT	Marquardt et al., 2014; Li et al., 2015b
	SVP	春化与环境温度途径	抑制	AD	Severing et al., 2012
	FLM	环境温度途径	抑制	IR和MXE	Scortecci et al., 2001
	MAF2	环境温度途径	抑制	IR和AA	Rosloski et al., 2013; Airoldi et al., 2015
	FCA	自主途径	促进	IR和AT	Macknight et al., 2002
	SPL4	年龄途径	促进	ES和AT	Yang et al., 2012
	SOC1	开花整合因子	促进	IR	Song et al., 2009
二穗短柄草	BdCO	光周期途径	促进	IR	Gil et al., 2017
二穗短柄草	FT	开花整合因子	促进	AD和AA	Qin et al., 2017
白菜	BrFLC1	春化与自主途径	抑制	IR和ES	Yuan et al., 2009
	BrFLC2	春化与自主途径	抑制	AD	Wu et al., 2012
	BrFLC5	春化与自主途径	抑制	IR和ES	Xi et al., 2018
甘蓝型油菜	BnFLC.A3b	春化与自主途径	抑制	ES和AA	Zou et al., 2012
甘蓝型油菜	FCA	自主途径	促进	IR和AT	Macknight et al., 2002
豌豆	FCA	自主途径	促进	IR和AT	Macknight et al., 2002
枳	PtFLC	春化与自主途径	抑制	IR、ES和AA	Zhang et al., 2009
枳	PtFCA	自主途径	促进	IR和AT	Ai et al., 2016
亚洲百合	LhFT6/8	开花整合因子	促进	IR	Kurokawa et al., 2020
菊花	CmFTL1	开花整合因子	促进	IR和ES	Mao et al., 2016
小麦	TaFDL15	开花整合因子	促进	IR	Li et al., 2015a
二球悬铃木	PaFT	开花整合因子	促进	IR、ES、AD、AA和AI	Zhang et al., 2011
二球悬铃木	PaFDL1/2	开花整合因子	促进	IR	Cai et al., 2021

物种	基因名称	调控途径	调控方式	剪切类型	参考文献
拟南芥	CO	光周期途径	促进	IR	Gil et al., 2017
	ELF3	光周期途径	抑制	IR	Kwon et al., 2014
	SPA3	光周期途径	抑制	IR	Shikata et al., 2014
	FLC	春化与自主途径	抑制	IR和AA	Lempe et al., 2005
	COOLAIR	春化与自主途径	促进	IR、ES、AA和AT	Marquardt et al., 2014; Li et al., 2015b
	SVP	春化与环境温度途径	抑制	AD	Severing et al., 2012
	FLM	环境温度途径	抑制	IR和MXE	Scortecci et al., 2001
	MAF2	环境温度途径	抑制	IR和AA	Rosloski et al., 2013; Airoldi et al., 2015
	FCA	自主途径	促进	IR和AT	Macknight et al., 2002
	SPL4	年龄途径	促进	ES和AT	Yang et al., 2012
	SOC1	开花整合因子	促进	IR	Song et al., 2009
二穗短柄草	BdCO	光周期途径	促进	IR	Gil et al., 2017
二穗短柄草	FT	开花整合因子	促进	AD和AA	Qin et al., 2017
白菜	BrFLC1	春化与自主途径	抑制	IR和ES	Yuan et al., 2009
	BrFLC2	春化与自主途径	抑制	AD	Wu et al., 2012
	BrFLC5	春化与自主途径	抑制	IR和ES	Xi et al., 2018
甘蓝型油菜	BnFLC.A3b	春化与自主途径	抑制	ES和AA	Zou et al., 2012
甘蓝型油菜	FCA	自主途径	促进	IR和AT	Macknight et al., 2002
豌豆	FCA	自主途径	促进	IR和AT	Macknight et al., 2002
枳	PtFLC	春化与自主途径	抑制	IR、ES和AA	Zhang et al., 2009
枳	PtFCA	自主途径	促进	IR和AT	Ai et al., 2016
亚洲百合	LhFT6/8	开花整合因子	促进	IR	Kurokawa et al., 2020
菊花	CmFTL1	开花整合因子	促进	IR和ES	Mao et al., 2016
小麦	TaFDL15	开花整合因子	促进	IR	Li et al., 2015a
二球悬铃木	PaFT	开花整合因子	促进	IR、ES、AD、AA和AI	Zhang et al., 2011
二球悬铃木	PaFDL1/2	开花整合因子	促进	IR	Cai et al., 2021