摘要
植物种子是人类粮食和家畜饲料的主要营养来源。种子的营养价值很大程度上依赖于在发育阶段积累的储藏物质,包括蛋白质、脂类等。LAFL基因(LEC1、ABI3、FUS3和LEC2)编码的转录因子从多层面调控种子发育,包括胚胎发生和储藏物质的积累过程。这些因子通过与其他因子间的相互作用形成复杂的调控网络,调控胚胎发生和种子成熟之间的转换以及成熟种子和发芽之间的转换。本文综述了LAFL基因在种子发育、萌发等过程中的作用的最新研究进展。
Plant seeds are a major source of nutrients for human and animal. The nutritive value of seeds is largely due to storage products that accumulated during seed development, including proteins and lipids. The LAFL genes(LEC2, ABI3, FUS3 and LEC1) encoding transcription factors regulate seed development including embryogenesis and accumulation of storage compounds. These transcription factors form a complex network with other players to control the switch between embryo development and seed maturation, and between seed maturation and germination. This paper reviews the latest research progress of LAFL genes in seed development and germination.
引文
Boulard C,Fatihi A,Lepiniec L,et al(2017).Regulation and evolution of the interaction of the seed B3 transcription factors with NF-Y subunits.BBA-Gene Regul Mech,1860:1069-1078
Braybrook SA,Harada JJ,et al(2008).LECs go crazy in embryo development.Trends Plant Sci,13(12):1360-1385
Braybrook SA,Stone SL,Park S,et al(2016).Genes directly regulated by LEAFY COTYLEDON2 provide insight into the control of embryo maturation and somatic embryogenesis.Proc Natl Acad Sci USA,103(9):3468-3473
Buenrostro JD,Wu B,Chang HY,et al(2015).ATAC-seq:a method for assaying chromatin accessibility genome-wide.Curr Protoc Mol Biol,109(1):21-29
Carbonero P,Iglesias-Fernández R,Vicente-Carbajosa J(2016).The AFL subfamily of B3 transcription factors:evolution and function in angiosperm seeds.J Exp Bot,68(4):871-880
Curaba J,Moritz T,Blervaque R,et al(2004).AtGA3ox2,a key gene responsible for bioactive gibberellin biosynthesis,is regulated during embryogenesis by LEAFY COT-YLEDON2 and FUSCA3 in Arabidopsis.Plant Physiol,136(3):3660-3669
Devic M,Roscoe T(2016).Seed maturation:simplification of control networks in plants.Plant Sci,252:335-346
Fatihi A,Boulard C,Bouyer D,et al(2017).Deciphering and modifying LAFL transcriptional regulatory network in seed for improving yield and quality of storage compounds.Plant Sci,250:198-204
Feng J,Lu J(2018).Advances in PRC1 protein functions in Arabidopsis thaliana.Plant Physiol J,54(5):702-708(in Chinese with English abstract)[丰景,卢江(2018).拟南芥PRC1蛋白功能研究进展.植物生理学报,54(5):702-708]
Harada JJ,Pelletier J(2012).Genome-wide analyses of gene activity during seed development.Seed Sci Res,22:S15-S22
Kanno Y,Jikumaru Y,Hanada A,et al(2010).Comprehensive hormone profiling in developing Arabidopsis seeds:examination of the site of ABA biosynthesis,ABA transport and hormone interactions.Plant Cell Physiol,51(12):1988-2001
Lara P,O?ate-Sánchez L,Abraham Z,et al(2003).Synergistic activation of seed storage protein gene expression in Arabidopsis by ABI3 and two bZIPs related to OPAQUE2.JBiol Chem,278(23):21003-21011
Lepiniec L,Devic M,Roscoe TJ,et al(2018).Molecular and epigenetic regulations and functions of the LAFLtranscriptional regulators that control seed development.Plant Reprod,31(3):291-307
Li Y,Jin K,Zhu Z,et al(2010).Stepwise origin and functional diversification of the AFL subfamily B3 genes during land plant evolution.J Bioinf Comput Biol,8(S1):33-45
Lopez-Molina L,Mongrand S,Mclachlin DT,et al(2002).ABI5 acts downstream of ABI3 to execute an ABA-dependent growth arrest during germination.Plant J,32(3):317-328
M?nke G,Seifert M,Keilwagen J,et al(2012).Toward the identification and regulation of the Arabidopsis thaliana ABI3 regulon.Nucleic Acids Res,40(17):8240-8254
Roscoe T,Guilleminot J,Bessoule JJ,et al(2015).complementation of seed maturation phenotypes by ectopic expression of ABSCISSIC ACID INSENSITIVE3,FUSCA3and LEAFY COTYLEDON2 in Arabidopsis.Plant Cell Physiol,56(6):1215-1228
Ryu H,Cho H,Bae W,et al(2014).Control of early seedling development by BES1/TPL/HDA19-mediated epigenetic regulation of ABI3.Nat Commun,5:4138
Sakai K,Taconnat L,Borrega N(2018).Combining laser-assisted microdissection(LAM)and RNA-seq allows to perform a comprehensive transcriptomic analysis of epidermal cells of Arabidopsis embryo.Plant Methods,14:10
Santos-Mendoza M,Dubreucq B,Baud S,et al(2008).Deciphering gene regulatory networks that control seed development and maturation in Arabidopsis.Plant J,54(4):608-620
Stone SL,Kwong LW,Yee KM,et al(2001).LEAFY COTY-LEDON2 encodes a B3 domain transcription factor that induces embryo development.Proc Natl Acad Sci USA,98:11806-11811
Tan T,Sun Y,Peng X,et al(2017).ABSCISIC ACID INSEN-SITIVE3 is involved in cold response and freezing tolerance regulation in Physcomitrella patens.Front Plant Sci,8:1599
Tang LP,Zhou C,Wang SS,et al(2016).FUSCA3 interacting with LEAFY COTYLEDON2 controls lateral root formation through regulating YUCCA4 gene expression in Arabidopsis thaliana.New Phytol,213(4):1740-1754
Tao Z,Shen L,Gu X,et al(2017).Embryonic epigenetic reprogramming by a pioneer transcription factor in plants.Nature,551:124-128
Tian MH,Zhao ZW,Tang AJ(2016).Desiccation sensitivity and effects of temperature and moisture content of the substrate during storage on after-ripening in seeds of Cycas revoluta.Plant Physiol J,52(2):225-233(in Chinese with English abstract)[田美华,赵正武,唐安军(2016).苏铁种子的脱水敏感性及温湿条件对种子后熟的影响.植物生理学报,52(2):225-233]
To A,Valon C,Savino G,et al(2006).A network of local and redundant gene regulation governs Arabidopsis seed maturation.Plant Cell,18(7):1642-1651
Troncoso-Ponce MA,Barthole G,Tremblais G,et al(2016).Transcriptional activation of two delta-9 palmitoyl-ACPdesaturase genes by MYB115 and MYB118 is critical for biosynthesis of omega-7 monounsaturated fatty acids in the endosperm of Arabidopsis seeds.Plant Cell,28:2666-2682
Tsuchiya Y,Nambara E,Naito S,et al(2017).The FUS3 transcription factor functions through the epidermal regulator TTG1 during embryogenesis in Arabidopsis.Plant J,37:73-81
Verdier J,Thompson RD(2008).Transcriptional regulation of storage protein synthesis during dicotyledon seed filling.Plant Cell Physiol,49(9):1263-1271
Vicente-Carbajosa J,Carbonero P(2005).Seed maturation:developing an intrusive phase to accomplish a quiescent state,Int J Dev Biol,49:645-651
Yoshii M,Yamamoto A,Kagaya Y,et al(2015).The Arabidopsis transcription factor NAI1 is required for enhancing the active histone mark but not for removing the repressive mark on PYK10,a seedling-specific gene upon embryonic-to-postgerminative developmental phase transition.Plant Signal Behav,10:e1105418
Zhang XJ,Jiang WB,Pang YZ(2016).Advances in the regulation mechanism of plant seed size.Plant Physiol J,52(7):998-1010(in Chinese with English abstract)[张雪晶,江文波,庞永珍(2016).植物种子大小调控机制的研究进展.植物生理学报,52(7):998-1010]