Table 1.

Summary of the functionally characterized plant TCP genes found in the present study.

Class (Clade)	Species	Name	Biological Function
Class I	Brassica rapa	BrpTCP4	Head shape from round to cylindrical [90]. Plant immunity [84].
	Arabidopsis thaliana	AtTCP15	Regulate the expression of the key cell cycle genes [20]; regulate the cytokinin and auxin response [4].
		AtTCP14, 15	Influence the internode length and leaf shape [3]. Related to the defense of Hpa pathogen [53] and DC3000 [37]. Plant immunity [82].
		AtTCP14	Involved in seed germination [6].
		AtTCP16	Regulate meristem induction and differentiation [91]. Involved in Pollen development [92].
		AtTCP20	Involved in cell proliferation, division and differentiation [93]. Regulate leaf pavement cell sizes and senescence [19]. Mediate nitrate foraging by Arabidopsis roots [94]. Influence the absorption of nitrate [74].
		AtTCP19, 20	Control leaf senescence [95].
		AtTCP21	Regulate circadian clock activity [7]. Plant immunity [82].
		AtTCP23	Related to flowering time and plant development [21].
		AtTCP8	Regulate SA biosynthesis and signal transduction [96].
	Gossypium hirsutum	GhTCP14	Regulate cotton fiber cells development [73].
	Oryza sativa	OsTCP19	Involved in salinity and drought tolerance [75].
		PCF2	Involved in salt stress tolerance [78].
	Phalaenopsis equestris	PePCF10	Involved in leaf and ovule development [72].
	Chrysanthemum morifolium	CmTCP14	Inhibited organ size and delayed senescence [71].
Class II (CIN)	Arabidopsis thaliana	AtTCP17	Up-regulate phytochrome interaction factors and auxin biosynthesis genes to avoid shade [97].
		AtTCP4	Involved in trichome differentiation and photoperiodic flowering [63,64]. Promote JA biosynthesis involving in leaf development and senescence [81].
		AtTCP24	Regulate anther wall development [65].
		AtTCP3	Promote flavonoid biosynthesis and negatively regulate auxin response [80]. Regulate flower morphology [56].
		AtTCP13	Involved in light response [98].
		AtTCP2, 3, 4, 10	Involved in leaf development [41]. Plant immunity [84].
	Oryza sativa	OsTCP21, PCF6	Involved in cold stress tolerance and plant defense [66,67].
	Solanum lycopersicum	LA	Involved in leaf development [45].
	Phalaenopsis equestris	PeCIN8	Regulate ovule, leaf, and petal development [72].
	Physcomitrella patens	PpTCP5	Negatively regulate sporophyte branching [99].
Class II (CYC)	Arabidopsis thaliana	AtTCP18	Suppresses the growth of axillary bud [2]. Repress the floral transition [54]. Plant immunity [89].
		AtTCP1	Influence petioles, rosette leaves, and inflorescent stems development [100].
	Cucumis melon	CmTCP1	Involved in development of tendrils from lateral shoots [101].
	Cucumis sativus	TEN	Regulate tendril-less phenotype [102].
	Gerbera hybrida	GhCYC2	Partake in flower symmetry [66].
	Pisum sativum	PsBRC1	Regulate shoot branching [57].
	Solanum lycopersicum	SlBRC1b	Suppress shoot branching [58].
	Solanum tuberosum	BRC1a	Regulate lateral branching [103].
	Hordeum vulgare	INT-C	Regulate tillering and fertility of lateral spikelets [104].
	Oryza sativa	FC1	Influence plant height tillering [1].
		REP1	Control palea development and floral zygomorphy [67].
	Sorghum bicolor	SbTB1	Negatively regulate tillering [105].
	Switchgrass	PvTB1	Negatively regulate tillering [106].
	Zea mays	BAD1	Regulate inflorescence architecture [107].
		TB1	Negatively regulates tillering [9].
	Tulipa gesneriana	TgTB1	Suppress the growth of axillary bud [17].
	Chrysanthemum morifolium	CmCYC2c	Regulate petal development [108].
	Lotus japonicus	LjCYC5	Regulate the symmetry of the inflorescence [68].